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SAAC Forum => SAAC Forum Discussion Area => Topic started by: kjspeed on February 19, 2018, 05:16:06 PM

Title: Recommendations on Street/Track Tires
Post by: kjspeed on February 19, 2018, 05:16:06 PM
I'm in the market for a new set of street/track shoes for my 68 GT350 w/Boss 351. I plan on mounting them to my American Racing 200s 15" vintage magnesium 7" rims and I'm looking for recommendations on which tire to use. I have a set of Goodyear bias ply for show, so these are more for go. I am replacing BF Goodrich Comp T/A 235/60ZR15. It appears they no longer make that tire in 15".


I'm seeing Cooper Cobra white letter tires with T (118MPH) rating for $109 or less each which is either a good deal or cheap tires. I don't know which.


These will be mostly used on the street, but hopefully turn a few laps at future SAAC events. Thanks in advance for the help!


-Kevin
Title: Re: Recommendations on Street/Track Tires
Post by: 6s1139 on February 19, 2018, 06:48:39 PM
15's is limited in choice - but thought you could still get the BFG's (https://www.tirerack.com/tires/TireSearchResults.jsp?zip-code=23433&width=225/&ratio=60&diameter=15&rearWidth=255/&rearRatio=40&rearDiameter=17), have these on mine

for my clone,  225/60R15 Yokohama A032R, Wanted the higher profile and the car does not really see street work (in fact, would recommend you stay away from any R tyres on a Shelby, they through up too much road rubbish)

Title: Re: Recommendations on Street/Track Tires
Post by: 2112 on February 19, 2018, 06:52:06 PM
http://www.avonmotorsport.com/historic/historic/cr6zz
Title: Re: Recommendations on Street/Track Tires
Post by: Bill on February 19, 2018, 09:10:03 PM
http://www.avonmotorsport.com/historic/historic/cr6zz

X2  8)
Title: Re: Recommendations on Street/Track Tires
Post by: SFM5S000 on February 19, 2018, 11:22:30 PM
I'm in the market for a new set of street/track shoes for my 68 GT350 w/Boss 351. I plan on mounting them to my American Racing 200s 15" vintage magnesium 7" rims and I'm looking for recommendations on which tire to use.

Hello Kevin,

First off if I were you, I would first reconsider a different set of rims for two reasons;
1. Magnesium rims that are close to fifty (50) years old are scary brittle. You want to risk these on track?
2. The real Magnesium 200S' had a tendency to crack in the centers when they were new, 50 years ago. You sure you want to risk your Shelby?

If you're planning to bring your car to SAAC 43 at Sonoma International this year NorCal SAAC's OTEC (On Track Executive Commitee) you will more than likely not pass Tech Inspection due to those rims.

"Parade lap" cars though, doesn't require going through Tech. NorCal SAAC is handling the tech duties for SAAC 43

Back to tires. The Avon CR6ZZ tires are great DOT legal tires as others have suggested but they are close to and over $400 apiece depending on size.

You may want to re visit your tire/rim selection.

Cheers,
~Earl J
Title: Re: Recommendations on Street/Track Tires
Post by: zray on February 19, 2018, 11:31:07 PM
another vote for the Avon CR6ZZ tires in the 15" sizes. They will transform your cars cornering abilities.  I put a set on some plain steel wheels shown here. Yes they cost $350.00  per tire. A bargain compared to money spent on other suspension upgrades which don't make nearly the  same difference in performance.

Z
Title: Re: Recommendations on Street/Track Tires
Post by: 2112 on February 19, 2018, 11:36:26 PM
Shelrace can do this to your Avons;

(http://i64.tinypic.com/2a94f1e.jpg)
Title: Re: Recommendations on Street/Track Tires
Post by: 1109RWHP on February 20, 2018, 12:31:40 AM
Who is Shelrace?
Title: Re: Recommendations on Street/Track Tires
Post by: SFM5S000 on February 20, 2018, 12:43:00 AM
Who is Shelrace?

John Bessey out of Southern California.

~E
Title: Re: Recommendations on Street/Track Tires
Post by: 2112 on February 20, 2018, 01:40:00 AM
Who is Shelrace?

John Bessey out of Southern California.

~E

I haven't seen him post with the new site software, but you might still be able to P/M him.
Title: Re: Recommendations on Street/Track Tires
Post by: kjspeed on February 20, 2018, 07:47:00 AM
I really appreciate the feedback gentlemen! I hadn't given a thought to the mags not passing tech because of age. I did check for cracks but wasn't aware that magnesium got more brittle with age. So....


Based on that, these rims are not what I want to use. However, I understand they are fairly valuable so I'll probably sell them and put the money towards a better set of tires and rims.
Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on February 20, 2018, 08:03:08 AM
Shelrace can do this to your Avons;

(http://i64.tinypic.com/2a94f1e.jpg)

I'd like to hear more about this process to the Avons. Anyone with closeups of the details?

Shelrace, along with Rick Kopec, has not re-registered to the Forum as of yet?
Title: Re: Recommendations on Street/Track Tires
Post by: kjspeed on February 20, 2018, 08:04:29 AM
Sounds like Avons are the way to go. If they'll pick up loose change as well as they do on Z's car I'll have them paid for in no time!  ;D


I don't take long trips in the car because @ 11.5:1 it likes Sunoco purple race fuel and at $8.37 a gallon it's not what you'd call economical. So for the short trips I take I don't mind cleaning the road debris off the quarters. It is a driver after all.


All that's left is to decide on rims. If I stick with 15's I'm limiting tire selection. If I go to 17's there are tons of selections but not for the Avon CR6ZZ. Decisions, decisions.
Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on February 20, 2018, 08:22:12 AM
Well, here's my issue with the Avon's. They are not cheap, they wear fast, they may be dried out in three years and unsafe. Other then that, I love 'em...especially if they can look like the large letter Goodyears!

There are a bunch of people who use them. Many here on this forum.

Rather then argue over these details, I'd rather see a poll of Avon user's on those details that I mention.

I have long ago realized that advocates of certain items often (but not always) have vested interests in recommending certain products. My opinion is, that has not changed.

I'd rather hear from several dozen folks who use them rather then one person who disagrees, and tells me that I am misinformed and I am misinformed because I am stupid. ;)
Title: Re: Recommendations on Street/Track Tires
Post by: zray on February 20, 2018, 09:51:09 AM
Sounds like Avons are the way to go. If they'll pick up loose change as well as they do on Z's car I'll have them paid for in no time!  ;D

I don't take long trips in the car because @ 11.5:1 it likes Sunoco purple race fuel and at $8.37 a gallon it's not what you'd call economical. So for the short trips I take I don't mind cleaning the road debris off the quarters. It is a driver after all.

All that's left is to decide on rims. If I stick with 15's I'm limiting tire selection. If I go to 17's there are tons of selections but not for the Avon CR6ZZ. Decisions, decisions.

Yes, on long trips I must pull over every so often and pull $15-$20 from each tire. And then due to the 4 IDA 48 Weber's,  I give the coin to the gas station attendants.

;)


Well, here's my issue with the Avon's. They are not cheap, they wear fast, they may be dried out in three years and unsafe. Other then that, I love 'em...especially if they can look like the large letter Goodyears!

There are a bunch of people who use them. Many here on this forum.

Rather then argue over these details, I'd rather see a poll of Avon user's on those details that I mention.

I have long ago realized that advocates of certain items often (but not always) have vested interests in recommending certain products. My opinion is, that has not changed.

I'd rather hear from several dozen folks who use them rather then one person who disagrees, and tells me that I am misinformed and I am misinformed because I am stupid. ;)

My only vested interest in the Avon CR6ZZ tires is wanting others to have the same positive experiences that I have enjoyed.

I installed the Avon's on a  GT350 and on a K code. On both cars the Avons were on track to last well over 20,000 miles of VERY spirited driving. The K code fastback had well over 15,000 miles on the tires with over 50% of usable tread left. With the Avons installed, cornering became very predictable and rock solid.  Excellent traction, wet or dry.

On the GT350 the Avon's were on the car for about 4 1/2 years in the central Texas heat with no signs of drying out or otherwise losing traction as they wore.  I drive that car daily, in temperatures ranging from 30 F to 110 F.  The tires on that car  lasted 23,000 miles before replacement.

I measure the cost of the tires against the money spent on other suspension upgrades which are rointinely made on cars to make them suitable for high speed touring  or part time track use.   People that think nothing about dropping $2,000 to $5,000 on suspension upgrades, inexplicably balk at $1,400 for a set Avons. I don't understand that type of economy. Quality tires are, in my view, the most important part of the suspension system, and not the place to skimp.

If one drives under 5,000 miles a year, I see no reason that a set of Avons can't easily last 5 years. Long enough to be a very attractive upgrade that will measurably improve the cars drivability.

Z
Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on February 20, 2018, 10:45:31 AM
Sounds like Avons are the way to go. If they'll pick up loose change as well as they do on Z's car I'll have them paid for in no time!  ;D

I don't take long trips in the car because @ 11.5:1 it likes Sunoco purple race fuel and at $8.37 a gallon it's not what you'd call economical. So for the short trips I take I don't mind cleaning the road debris off the quarters. It is a driver after all.

All that's left is to decide on rims. If I stick with 15's I'm limiting tire selection. If I go to 17's there are tons of selections but not for the Avon CR6ZZ. Decisions, decisions.

Yes, on long trips I must pull over every so often and pull $15-$20 from each tire. And then due to the 4 IDA 48 Weber's,  I give the coin to the gas station attendants.

;)


Well, here's my issue with the Avon's. They are not cheap, they wear fast, they may be dried out in three years and unsafe. Other then that, I love 'em...especially if they can look like the large letter Goodyears!

There are a bunch of people who use them. Many here on this forum.

Rather then argue over these details, I'd rather see a poll of Avon user's on those details that I mention.

I have long ago realized that advocates of certain items often (but not always) have vested interests in recommending certain products. My opinion is, that has not changed.

I'd rather hear from several dozen folks who use them rather then one person who disagrees, and tells me that I am misinformed and I am misinformed because I am stupid. ;)

My only vested interest in the Avon CR6ZZ tires is wanting others to have the same positive experiences that I have enjoyed.

I installed the Avon's on a  GT350 and on a K code. On both cars the Avons were on track to last well over 20,000 miles of VERY spirited driving. The K code fastback had well over 15,000 miles on the tires with over 50% of usable tread left. With the Avons installed, cornering became very predictable and rock solid.  Excellent traction, wet or dry.

On the GT350 the Avon's were on the car for about 4 1/2 years in the central Texas heat with no signs of drying out or otherwise losing traction as they wore.  I drive that car daily, in temperatures ranging from 30 F to 110 F.  The tires on that car  lasted 23,000 miles before replacement.

I measure the cost of the tires against the money spent on other suspension upgrades which are rointinely made on cars to make them suitable for high speed touring  or part time track use.   People that think nothing about dropping $2,000 to $5,000 on suspension upgrades, inexplicably balk at $1,400 for a set Avons. I don't understand that type of economy. Quality tires are, in my view, the most important part of the suspension system, and not the place to skimp.

If one drives under 5,000 miles a year, I see no reason that a set of Avons can't easily last 5 years. Long enough to be a very attractive upgrade that will measurably improve the cars drivability.

Z

That's the kind of review I like to hear. It can't get much better then that? I would like to hear from others as well though. I had one person say they got only 3,500 miles out of a set.

Then again the best ice/snow tire review I ever read was from a guy in Miami, Fl, in August, with 100 miles on the tires.

Said they were the best snow tires he ever had and wore great.


I'm still looking for the size application chart on the Avons though. I need 235-60-15 and 295-50-15. I'll investigate more. Thanks for your input Z.
Title: Re: Recommendations on Street/Track Tires
Post by: 2112 on February 20, 2018, 10:53:45 AM
There is a size chart on the link I posted.

Looks like they shoot for consistently having a 26.5" height. You'll have to decide between a 225 and a 245. They have 295.
Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on February 20, 2018, 11:02:24 AM
There is a size chart on the link I posted.

Looks like they shoot for consistently having a 26.5" height. You'll have to decide between a 225 and a 245. They have 295.

Yes. I have a wheel width problem with them though.

I need an explanation of the compound characteristics with temperature. For instance, on high speed rated tires such as W and Z, I've had to basically park the car with air temps below about 35 F.

The tires become slick and the treads tend to split also.

What happens to the characteristic of the compounds if the suddenly cool off like if you are caught in rain unexpectedly? Does the chase truck pull alongside and signal a tire change to "rains"?
Title: Re: Recommendations on Street/Track Tires
Post by: 2112 on February 20, 2018, 11:10:27 AM
 :o

If you look at every tire on a modern GT500, ZL-1 Camaro, Corvette, FGT Ferrari etc. They will have a disclaimer that the tires are not to be considered safe under 45 degrees.

It's the price of having the high performance adhesion.

You need an all-season radial to do what you ask. BFG might be the best, or only choice.

But those aren't track tires.
Title: Re: Recommendations on Street/Track Tires
Post by: terlingua11 on February 20, 2018, 11:28:26 AM
If your polling I have Avons on CSX2122. They ride great and look period correct. Johns version looks really cool. I'd like to hear more about those as well.
Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on February 20, 2018, 11:44:25 AM
:o

If you look at every tire on a modern GT500, ZL-1 Camaro, Corvette, FGT Ferrari etc. They will have a disclaimer that the tires are not to be considered safe under 45 degrees.

It's the price of having the high performance adhesion.

You need an all-season radial to do what you ask. BFG might be the best, or only choice.

But those aren't track tires.

My reality is that it's very unlikely I would be interested in driving the car in the cold anyway. I'm just looking to get as much feedback as I can.

I already know about the adhesion issue with low temps from my Pirelli P7's. They turn into the proverbial "banana skins", interestingly enough right in that 35-45 degree area. The tire rides very hard at those temps too. Like it is concrete. A lot like the old Polyglass tires did?

BFG's are what is on the car now and they are a compromise tire BUT very predictable.  Incidentally, they don't like any kind of water either.

The question here, now, is where I want to compromise? I have to go back and read my own criticisms.

I was looking for the Avons at the last SAAC convention and didn't have much chance to investigate them in person.


I want to see where everyone is located with these things too. The Avons sound like a perfect LA tire to me? I wonder if they love 'em in Green Bay? Hey Jim?
Title: Re: Recommendations on Street/Track Tires
Post by: kjspeed on February 20, 2018, 12:06:29 PM
Sounds like Avons are the way to go. If they'll pick up loose change as well as they do on Z's car I'll have them paid for in no time!  ;D

I don't take long trips in the car because @ 11.5:1 it likes Sunoco purple race fuel and at $8.37 a gallon it's not what you'd call economical. So for the short trips I take I don't mind cleaning the road debris off the quarters. It is a driver after all.

All that's left is to decide on rims. If I stick with 15's I'm limiting tire selection. If I go to 17's there are tons of selections but not for the Avon CR6ZZ. Decisions, decisions.

Yes, on long trips I must pull over every so often and pull $15-$20 from each tire. And then due to the 4 IDA 48 Weber's,  I give the coin to the gas station attendants.

 ;)

I have 4 48IDA's too so the extra gas money would be great!
Title: Re: Recommendations on Street/Track Tires
Post by: zray on February 21, 2018, 10:25:38 AM
I had one person say they got only 3,500 miles out of a set...."

must have been a 1/4 mile at a time



I need an explanation of the compound characteristics with temperature. For instance, on high speed rated tires such as W and Z, I've had to basically park the car with air temps below about 35 F.

The tires become slick and the treads tend to split also.

What happens to the characteristic of the compounds if the suddenly cool off like if you are caught in rain unexpectedly? Does the chase truck pull alongside and signal a tire change to "rains"?

I can't speak to the results with other W and Z compound tires, but the Avon CR6ZZ's show no issues when driving in 25 F weather in an Oklahoma winter. Nor any issues with wet traction. In fact, they are very confidence inspiring on wet roads. Cornering was practically the same as on dry roads, limited more by my driving abilities than the tire adhesion.

Z
Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on February 21, 2018, 10:36:22 AM
I had one person say they got only 3,500 miles out of a set...."

must have been a 1/4 mile at a time



I need an explanation of the compound characteristics with temperature. For instance, on high speed rated tires such as W and Z, I've had to basically park the car with air temps below about 35 F.

The tires become slick and the treads tend to split also.

What happens to the characteristic of the compounds if the suddenly cool off like if you are caught in rain unexpectedly? Does the chase truck pull alongside and signal a tire change to "rains"?

I can't speak to the results with other W and Z compound tires, but the Avon CR6ZZ's show no issues when driving in 25 F weather in an Oklahoma winter. Nor any issues with wet traction. In fact, they are very confidence inspiring on wet roads. Cornering was practically the same as on dry roads, limited more by my driving abilities than the tire adhesion.

Z

All good things to hear from the horse's mouth.

My Pirelli p7's which are V's are terrible when cold. Not enough experience with them in the wet since that would be an unplanned happening.

Even the CN36 is a lousy all weather tire. Simply put, it isn't all weather. Really almost a dry only.
Title: Re: Recommendations on Street/Track Tires
Post by: terlingua11 on February 21, 2018, 01:54:57 PM


I want to see where everyone is located with these things too. The Avons sound like a perfect LA tire to me? I wonder if they love 'em in Green Bay? Hey Jim?


I'm in Wisconsin-

Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on February 21, 2018, 08:31:52 PM


I want to see where everyone is located with these things too. The Avons sound like a perfect LA tire to me? I wonder if they love 'em in Green Bay? Hey Jim?


I'm in Wisconsin-

Do you drive the car in cold weather?
Title: Re: Recommendations on Street/Track Tires
Post by: Bigfoot on February 21, 2018, 08:37:52 PM
You can run Hoosier Slicks on the street.
Maybe not legally but never seen anyone pulled over for them.
Plenty of cars drive on them as long as it’s not daily.
Expensive ,....but sticky.
At the end of a few track events we just throw them in the dumpster.
Would still be “mint” for street.

Disclaimer: can’t be driven in the wet or damp.
Title: Re: Recommendations on Street/Track Tires
Post by: Bigfoot on February 21, 2018, 08:39:13 PM
What I would do is have a few sets of wheels.
One set with street tires and one with slicks
Title: Re: Recommendations on Street/Track Tires
Post by: kjspeed on February 21, 2018, 10:22:23 PM
I've got a set of Goodyear bias ply tires for show and street cruising but it doesn't take much to get them to break traction. I was hoping to get a second set that would be a good compromise for performance street driving and occasional track use. Although the Avons are pricey, it sounds like they will do the trick and if I get caught in a Florida rainstorm I won't be skating off the road like I might with slicks.
My next issue is now identifying the rims. A friend of mine thinks they may be aluminum rather than magnesium. I understand you can put a few drops of vinegar on them to tell - magnesium will react and aluminum won't. Does anyone have experience with this?
If they are aluminum and not magnesium, would they potentially pass tech inspection and be allowed on track at an SAAC event?
I have pics of the rims if someone can identify by sight but I'll have to resize or send separately as the files are too big.
Title: Re: Recommendations on Street/Track Tires
Post by: 1109RWHP on February 21, 2018, 10:48:28 PM
The magnesium wheels will turn black if you do not polish them regularly. The aluminum ones will just get dull. Post the pictures if you can.
Title: Re: Recommendations on Street/Track Tires
Post by: CSX2259 on February 22, 2018, 12:52:18 AM
Sorry guys, I went back to my old handle "CSX2259"

Yes, we do / did the tires in the photos, they are AVON CR6ZZs, we can also do most any tire and have done BF Goodrich. The AVON tires are pricey but you can not beat the performance and visual appearance, I believe they offer the best 1960s appearance out of most of the tires available today. If you are interested in having the tires transformed into what is in the photos please give Bella a call 1-760-428-2177 she will be glad to help you. The attached photo is a recent set that were completed for a CSX6000 Series Continuation Cobra owner. Thanks to those that gave us kudos, it is always appreciated. John

P.S. The AVON CR6ZZs were developed for rally racing. They are also a radial DOT approved tire.
Title: Re: Recommendations on Street/Track Tires
Post by: kjspeed on February 22, 2018, 08:01:11 AM
Here are some pics of the wheels in question. Click to expand full size.
(http://www.saacforum.com/gallery/153-220218074358.jpeg)
(http://www.saacforum.com/gallery/153-220218074519.jpeg)
(http://www.saacforum.com/gallery/153-220218074638.jpeg)
(http://www.saacforum.com/gallery/153-220218074757.jpeg)
(http://www.saacforum.com/gallery/153-220218074924.jpeg)

Title: Re: Recommendations on Street/Track Tires
Post by: CSX2259 on February 22, 2018, 12:54:21 PM
Another good track tire would be the Hoosier Street TDs, we used those on a 1966 GT350 that we vintage raced. Try talking to Roger Krause he is one of two (one distributor east coast, one distributor west coast) AVON CR6ZZ distributors in North America. Roger also is a distributor for other tires and would be able to give you manufacturer recommendations and sizing for your application.

http://www.rogerkrausracing.com
Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on February 22, 2018, 01:17:09 PM
Another good track tire would be the Hoosier Street TDs, we used those on a 1966 GT350 that we vintage raced. Try talking to Roger Krause he is one of two (one distributor east coast, one distributor west coast) AVON CR6ZZ distributors in North America. Roger also is a distributor for other tires and would be able to give you manufacturer recommendations and sizing for your application.

http://www.rogerkrausracing.com

How about some close ups of the details of the GOODYEAR applique? Is it paint? Is it stick on letters? Does it need to be done after the tire is mounted to the wheel?
Title: Re: Recommendations on Street/Track Tires
Post by: terlingua11 on February 22, 2018, 01:41:34 PM


I want to see where everyone is located with these things too. The Avons sound like a perfect LA tire to me? I wonder if they love 'em in Green Bay? Hey Jim?


I'm in Wisconsin-

Do you drive the car in cold weather?

Yes I do. I was at SAAC-39 with 2122 and froze my a$$ off....remember the snow flurries the first day?
Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on February 22, 2018, 02:03:11 PM


I want to see where everyone is located with these things too. The Avons sound like a perfect LA tire to me? I wonder if they love 'em in Green Bay? Hey Jim?


I'm in Wisconsin-

Do you drive the car in cold weather?

Yes I do. I was at SAAC-39 with 2122 and froze my a$$ off....remember the snow flurries the first day?



Well, are you FROM Wisconsin? It's usually the bugs you need to worry about. They clog the radiators and you can't leave small animals or new born babies unattended. The mosquitoes have been known to try to carry them away for food.  ;)


Here's a question. I had a thought. I know. A thought of mine could die of loneliness. I get that, sure BUT for tire manufacturers, do they mix the formulas for the tire compounds themselves or say just purchase it from bulk producers and just pour it in the mold of the tires they are making?

Avon can't be anything near what we might call a large manufacturer?

I know that Pirelli actually schedules certain tire sizes to be made at certain times of the year. Those 50 series p7's that they first introduced for the Lamborghini Countaches are really hard to get because they only make a few a year.

The same for companies like Hoosier. Do they make their own rubber compounds or just maybe buy it from someone like Goodyear?
Title: Re: Recommendations on Street/Track Tires
Post by: terlingua11 on February 22, 2018, 03:07:26 PM
Yes, Born and raised here. Very familiar with the environmental challenges we have here-  8)
Title: Re: Recommendations on Street/Track Tires
Post by: CSX2259 on February 22, 2018, 05:17:34 PM
Another good track tire would be the Hoosier Street TDs, we used those on a 1966 GT350 that we vintage raced. Try talking to Roger Krause he is one of two (one distributor east coast, one distributor west coast) AVON CR6ZZ distributors in North America. Roger also is a distributor for other tires and would be able to give you manufacturer recommendations and sizing for your application.

http://www.rogerkrausracing.com

How about some close ups of the details of the GOODYEAR applique? Is it paint? Is it stick on letters? Does it need to be done after the tire is mounted to the wheel?

The sidewall of the tires gets shaved removing any unwanted, designs, lettering etc. Then the sidewall is striped with paint as per the original Goodyear Bluestreaks and finally the raised white lettering is applied. We have done this procedure to tires that were on the rims and tires that were off of the rims, it does not matter. Usually the tires are bought new and drop shipped to us we then modify them and ship them out. The tires in the this photo have probably 2000 plus miles on them. They have not been cleaned.
Title: Re: Recommendations on Street/Track Tires
Post by: Cobra Pack on February 22, 2018, 05:25:32 PM
I have had Avons on my Kirkham 289 for 6 years.  I drive about 1200-1500 miles a year and they still look relatively new (no cracks or visible aging).  I am ready to replace them this year just because they are a bit harder than new.  I plan on having John and Bella do the lettering on my new set of Avons.  I do take my car to Road America a couple of times a year so they see track use, and I do drive them in cold WI temps.  I just drove the car last weekend when it was 25 degrees after reinstalling my differential.
Title: Re: Recommendations on Street/Track Tires
Post by: Dkutz on February 22, 2018, 05:56:34 PM
Anyone put these on a 289 street car??  Or would they not be appropriate..
Title: Re: Recommendations on Street/Track Tires
Post by: CSX2259 on February 22, 2018, 06:05:55 PM
Depending on if the Cobra was a early "worm and sector" or "rack and pinion" you would want either the 205s (5.5" wheel) or the 215s (6.0" wheel)
Title: Re: Recommendations on Street/Track Tires
Post by: terlingua11 on February 22, 2018, 06:47:47 PM
John,

Those look super cool! Get job-  They look even better not cleaned.
Title: Re: Recommendations on Street/Track Tires
Post by: Bigfoot on February 22, 2018, 08:20:25 PM


I want to see where everyone is located with these things too. The Avons sound like a perfect LA tire to me? I wonder if they love 'em in Green Bay? Hey Jim?


I'm in Wisconsin-

Do you drive the car in cold weather?

Yes I do. I was at SAAC-39 with 2122 and froze my a$$ off....remember the snow flurries the first day?

I’ll never forget that chill
Title: Re: Recommendations on Street/Track Tires
Post by: 1109RWHP on February 22, 2018, 09:14:48 PM
Here are some pics of the wheels in question. Click to expand full size.
(http://www.saacforum.com/gallery/153-220218074358.jpeg)
(http://www.saacforum.com/gallery/153-220218074519.jpeg)
(http://www.saacforum.com/gallery/153-220218074638.jpeg)
(http://www.saacforum.com/gallery/153-220218074757.jpeg)
(http://www.saacforum.com/gallery/153-220218074924.jpeg)

They look aluminum to me. Not dark enough to be magnesium.
Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on February 23, 2018, 10:18:05 AM
I'm in the market for a new set of street/track shoes for my 68 GT350 w/Boss 351. I plan on mounting them to my American Racing 200s 15" vintage magnesium 7" rims and I'm looking for recommendations on which tire to use. I have a set of Goodyear bias ply for show, so these are more for go. I am replacing BF Goodrich Comp T/A 235/60ZR15. It appears they no longer make that tire in 15".


I'm seeing Cooper Cobra white letter tires with T (118MPH) rating for $109 or less each which is either a good deal or cheap tires. I don't know which.


These will be mostly used on the street, but hopefully turn a few laps at future SAAC events. Thanks in advance for the help!


-Kevin

If this was the car John Barnes owned, if you are unsure, why don't you ask him if the 200s wheels are magnesium or not. He'd know for sure.


I like the GOODYEAR applique to the tires. Problem is I'm in New York. Not to cut into anyone's action on this but I need to consider finding someone locally rather then ship three sets of tires from corner to corner.

Is there anyone closer to me that can do this that maybe I can drive to?
Title: Re: Recommendations on Street/Track Tires
Post by: kjspeed on February 23, 2018, 02:07:53 PM
I did buy them from John as a spare set for track use and he did represent that they were magnesium. I did the vinegar test and they are definitely aluminum. I have emailed John to get his take on everything.
Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on February 23, 2018, 02:18:55 PM
I used 15x7 aluminum 200s wheels in 72 when I first got my car. I eventually went with the Shelby 10 spokes because of the negative offsets. The 200's I had were a +1/2" offset which limited the tire selection.

I've learned to cheat over the years and found out how to run 295-50-15 BFG's on the back. The Americans would not permit that.

These are E60's. Picture is a little faded but from spring of 1972. Car is -01107. I wasn't much with a camera back then.
Title: Re: Recommendations on Street/Track Tires
Post by: 427heaven on February 23, 2018, 03:31:33 PM
Well after reading all of the responses you cant really have it both ways. This is what I would recommend as I have used these for years from my STOCK CAR that I reused on some street cars. Use some stock steel wheels because they are inexpensive you can run up to 150mph without really to much concern old station wagon wheels or large cars all ran them all 15 inch cool huh, now for track tires I would recommend some hoosier slicks you can by them on line or most of the local race tracks have tire vendors on site to help you with your purchase and help your wallet get a little lighter, I say a little lighter because they are approx. 150 each cheap for going fast type tires. When your done playing at the track take em off put your magnesium wheels back on for the car shows and keep on smiling ;)
Title: Re: Recommendations on Street/Track Tires
Post by: kjspeed on February 23, 2018, 04:17:37 PM
The ones on the car now are American Racing also. F60-15's up front and L60-15's on the back. Okay for careful driving but not for pushing it. Or going over big bumps, or potholes, squirrels, etc.
(http://www.saacforum.com/gallery/153-230118110437.jpeg)
Title: Re: Recommendations on Street/Track Tires
Post by: Bigfoot on February 23, 2018, 04:19:53 PM
^^
Good photo
Looks ill...
Title: Re: Recommendations on Street/Track Tires
Post by: kjspeed on February 23, 2018, 04:26:13 PM
When I thought the spare rims were magnesium and found I couldn't race them I was thinking of buying some lightweight steel circle track wheels and using Avons. Of course, if I can use the AR aluminum wheels I will probably shoe them with Avons so I can use on street and track. I'm not going to be pushing the car to the limit on the track or the street because I don't want scratches and dents all over my pretty green paint! But it would be nice to have something stickier than the bias tires on it now. I'll save them for shows.
Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on February 23, 2018, 04:37:58 PM
The tricked Avons will look the closest to this, the Goodyear Polyglass tires.

Personally I found that on the front, a 235-60-15 is big enough, gives nice clearances and you will see a tremendous difference with a radial tire instead of the Polyglass tire. Those are for looks and ride and handle like they are made out of concrete.

Here is the 295-50-15 on the rear with the 10 spokes. Notice the space between the tire and the fender.
Title: Re: Recommendations on Street/Track Tires
Post by: CSX2259 on February 23, 2018, 05:58:20 PM
Just a FYI,

We have not had any issues shipping the completed tires and any competent tire shop should have no problem installing the tires without issue. That being said, we can also custom make other fonts per the clients request.
Title: Re: Recommendations on Street/Track Tires
Post by: 2112 on February 23, 2018, 06:58:05 PM
The ones on the car now are American Racing also. F60-15's up front and L60-15's on the back. Okay for careful driving but not for pushing it. Or going over big bumps, or potholes, squirrels, etc.
(http://www.saacforum.com/gallery/153-230118110437.jpeg)

Looks fantastic!
Title: Re: Recommendations on Street/Track Tires
Post by: 1109RWHP on February 23, 2018, 07:02:35 PM
Just a FYI,

We have not had any issues shipping the completed tires and any competent tire shop should have no problem installing the tires without issue. That being said, we can also custom make other fonts per the clients request.

What does that service usually cost?
Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on February 23, 2018, 07:14:42 PM
Bella quoted me $800 for doing my four tires today.
Title: Re: Recommendations on Street/Track Tires
Post by: 2112 on February 23, 2018, 07:48:25 PM
Bella quoted me $800 for doing my four tires today.

Was that for the Bluestreak style or '67 small letter polyglas style?
Title: Re: Recommendations on Street/Track Tires
Post by: 2112 on February 23, 2018, 07:51:52 PM
John, when you shave the Avon sidewall to clean it up, is it smooth or slightly scuffed in texture?
Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on February 23, 2018, 07:53:58 PM
Bella quoted me $800 for doing my four tires today.

Was that for the Bluestreak style or '67 small letter polyglas style?

The LARGE letter Blue Streak style like in the pics posted here. The small letter type is like what is on KJspeed's car.

Text Bella. That's what I did. They probably will do them anyway that you want too? Probably you could do the SHELBY type with the Cobra on it also?
Title: Re: Recommendations on Street/Track Tires
Post by: kjspeed on February 23, 2018, 07:58:57 PM
Shelbydoug - those tires seem to fit nicely! What are the rim widths and backspacing on those 10 spokes? I assume they are 15's?


Do you have stock brakes? The reason I ask is that mine has Wilwoods all around and need a little bit more clearance for the calipers.


~Kevin
Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on February 23, 2018, 09:19:45 PM
Shelbydoug - those tires seem to fit nicely! What are the rim widths and backspacing on those 10 spokes? I assume they are 15's?


Do you have stock brakes? The reason I ask is that mine has Wilwoods all around and need a little bit more clearance for the calipers.


~Kevin

Ah hah! Welcome to my web say the spider.

To answer your questions.

1) No, the brakes are not stock.
2) The front wheels are reproduction 15 x 7 Shelby 10 spokes
3) the rear wheels are early 15x7 original 10 spokes

Explanations:

1) The front brakes are what are referred to as Shelby Trans-Am brakes. What that means is that at some point in Shelby's production of Trans Am Mustang race cars, they enlarged the front disc brakes using the 67 Galaxie/Thunderbird/Lincoln brake calipers and 12"x 1.25" vented rotors.

To use that on a Mustang it requires a special adapter and a switch to the production 68 BIG diameter drum brake spindles.

This is what is on the front of my car, i.e., vintage legal Trans-Am front disc brakes.


2) The rear. What I initially wanted was a rear disc brake set up. WELL before virtually ANY of the current aftermarket kits existed, I discovered the 76-78 Lincoln Versalles disc brake assembly.

If you are unfamiliar with this entire rear assembly, the entire thing is unique. It mounts a unique caliper, via a unique adapter welded to a unique 9" rear banjo.

It is narrower then the stock 67-8 banjo by 2" (and the same width as the 65-66 banjo) BUT the spring perches match up exactly to the 67-8 springs. It's a bolt in.

So the effect of using this rear is to move the outer edge of the tire inboard a full one inch. The effect of the clearance is shown in the picture I posted. You can put your hand between the fender lip and the edge of the tire.

That's a full 12" tread plus the thickness of the sidewall. It tucks in so nice, most people miss the detail and think it is stock.

Now the only change that I made to the Lincoln rear was to change from the 28 spline Ford axles to 31 spline Strange axles.

So you might see my interest in this tire discussion going on here. Replacing the BFG's with the Avon's disguised as Goodyear blue streaks? Then again, maybe not.

The Lincoln rear is already equiped with a parking brake, again of a unique design and what makes people crazy is the big FORD script that they see when the wheel is off. Lots of head scratching.

..and yes, there are Porterfield R4S "street pads" on it.

When my trunk is open, pay no attention to that blue bottle in the corner, it ain't nothing important.  ;)
Title: Re: Recommendations on Street/Track Tires
Post by: CSX2259 on February 23, 2018, 10:03:30 PM
John, when you shave the Avon sidewall to clean it up, is it smooth or slightly scuffed in texture?

It is smooth, the process is a multi step procedure that removes original tire sidewall details and allows us to apply the requested graphics or striping. The sidewall treatment is up to our clients, stripe, no stripe, "Polyglass script" can also be applied as well as other manufacturers logos.
Title: Re: Recommendations on Street/Track Tires
Post by: kjspeed on February 24, 2018, 09:08:44 AM
John Barnes indicated that my car has the "big" front spindles, so that may mean he used the drum spindles. Using the narrower Lincoln rear end would definitely help tuck the tires under. Mine is the stock width Mustang housing but with Wilwood disks, Moser 31 spline axles and a 4 pinion diff. I could tuck the tires under further by using wheels with 1" more back-spacing. These aluminum ones I have measure 3.75". It would be nice to get more rubber out back than a 225/60R15. The Avon CR6ZZ's jump from 225/60 to 245/60 to 275/55 to 295/50 as far as I can tell from the dealer sites.
Title: Re: Recommendations on Street/Track Tires
Post by: 427heaven on February 24, 2018, 09:23:05 AM
Now we are deviating from tires, to car modifications for a car that will see little track time. There is a whole bunch of track modifications that could put a smile on your face but as you stated you were just looking for a little more grip. Take your car out to a few open track sessions and see if you want to make your car more track worthy or just put a set of STICKIES on it for that occasional outing. That will help guide you...
Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on February 24, 2018, 10:14:16 AM
John Barnes indicated that my car has the "big" front spindles, so that may mean he used the drum spindles. Using the narrower Lincoln rear end would definitely help tuck the tires under. Mine is the stock width Mustang housing but with Wilwood disks, Moser 31 spline axles and a 4 pinion diff. I could tuck the tires under further by using wheels with 1" more back-spacing. These aluminum ones I have measure 3.75". It would be nice to get more rubber out back than a 225/60R15. The Avon CR6ZZ's jump from 225/60 to 245/60 to 275/55 to 295/50 as far as I can tell from the dealer sites.

You can't use the drum spindles with the Ford disc brake calipers. One of the reasons to go to the
Tbird calipers is that they have four pistons vs. one for the 68 Calipers. They are also huge and increase the clamping force on the rotor.

The caution on the rear change is that there is a maximum you can go to with negative offset on the wheel. What will happen is that you will eliminate the tire interference on the fender lip but you will get tire interference on the inner fender side.

Using the early 67 15" ten spokes, there is an additional 1/4" backspacing to gain over the later ones with the cast in wheel spacer.

I also doubled the long upper leaf spring. If you investigate, you will find that most of the "R" models did that as well. The difference with them was that they mostly used the Koni rear shock.
I found that a MUCH better shock to use was the Cure-ride.

It's a bigger piston then the Koni and as a result with the other changes, the car is smooth in the rear rather then harsh.

If you want to make these cars handle, I think that's the way to go.

Also, regardless of what the factory did with the Boss 302's, a rear anti-sway bars on these cars is a no-no. Frankly, use the 1-1/8" front bar (from the Granada), konis in front, the "trans-am" cut down coils in front and you eliminate the need for one.

I disagree that this is a departure from the intent of the original poster. The intent was what to do with the rear in particular and the Avon's appear to be a plus BUT under certain conditions AND what I just listed is a way to make the car ride like a Lincoln and handle as well ON THE STREET.

It just spills over on to the track and unless the car had these mods, you'd never know what you were missing. You would be saying to your passenger, "the cars are light in the ass. That's why they hop all over the place like this". That's your choice. Not mine.  ;)

John stayed with that set up because of the LOOK of the Goodyears. Frankly that's all they are good for, the look. They don't belong on the street and certainly are a handful on the track needlessly, if not lethal?
Title: Re: Recommendations on Street/Track Tires
Post by: 2112 on February 24, 2018, 01:06:31 PM
If you are not doing concours, you can solve a lot of problems like they did in the 60's and 70's;


 8)

Title: Re: Recommendations on Street/Track Tires
Post by: 1109RWHP on February 24, 2018, 01:52:04 PM
You can use drum spindles with the Ford Kelsey Hayes T Bird calipers. I have 70 drum spindles, custom caliper bracket, 67 Mustang disc brake hubs, 69 LTD rotors and 67 T bird  calipers. You need 70 outer tie rods to use the 70 spindles on an older car that has the smaller tie rod end. Cobra Automotive and Street or Track sell the bracket.
Title: Re: Recommendations on Street/Track Tires
Post by: 98SVT - was 06GT on February 24, 2018, 02:42:36 PM
I really appreciate the feedback gentlemen! I hadn't given a thought to the mags not passing tech because of age. I did check for cracks but wasn't aware that magnesium got more brittle with age. So....
When I was crewing on 5R001 I sprayed a wheel to clean it and saw a neat row of bubbles coming out of a crack that went all the way around the spoke. These had been crack checked about 6 months earlier.
Title: Re: Recommendations on Street/Track Tires
Post by: zray on February 24, 2018, 11:54:55 PM

"........Also, regardless of what the factory did with the Boss 302's, a rear anti-sway bars on these cars is a no-no. ......."

^^^^^^^^

I have yet to see a rear sway bar (on a 65/66) that actually helped anything.

Z
Title: Re: Recommendations on Street/Track Tires
Post by: 427heaven on February 25, 2018, 06:47:14 AM
^^^^^   The big AADCO 3/4 inch bar works best...  And away go body roll troubles down the drain. ;) Ask Cobra automotive they run the bars.
Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on February 25, 2018, 08:21:25 AM
^^^^^   The big AADCO 3/4 inch bar works best...  And away go body roll troubles down the drain. ;) Ask Cobra automotive they run the bars.

I can't disagree with how they set up THEIR cars.

I have had my car since April 4, 1972. It has had close to every possible combination on it that ever existed.

IN MY CASE, a 3/4" REAR bar IN ADDITION to everything else, made it close to impossible to even go through the "eSSes".

Take it off and you can steer through with one finger on the steering wheel.

In my case, I AM NOT an alchemist. I can't speak for the Curt and his crew.

The minimal I can say is, you do not need a rear bar. In my case though the addition of the rear bar was DETRIMENTAL.

Title: Re: Recommendations on Street/Track Tires
Post by: zray on February 25, 2018, 09:13:40 AM
"......In my case, I AM NOT an alchemist. I can't speak for the Curt and his crew......."

I think alchemist misses the mark a little.

at any given time they they are best described as spell-casting sorcerers, witches riding 500+ HP brooms, or wicked warlocks with 0w-50 in their veins, and in any case,  always capable of inducing mass hypnosis at any given racetrack, if you get in their way.

Like this

or this photo of Curt & crew, shape shifting, and having a slow driver for lunch

Z.
Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on February 25, 2018, 09:33:14 AM
It is my understanding that an alchemist is one who attempts to change lead into gold.

That is not the same thing as a survivalist. There are survivalists that insist that eating raw meat is essential to keeping ones resistance as high as possible. If that's the way they feel, that's their choice. I'll just stay out of the way.  ;)

Your pictures are showing a pack of wolves and/or wild animals consuming a deer. You sound like a competitor to the Cobra Automotive prepared cars which have often called foul. Kind of like the Corvette racers did when the Cobras showed up.

It was said that they would actually cry, say the Cobras had an unfair advantage, not even take the Corvette off of the trailers and just turned around and went home.

I'm sure that knowing Curt, that is a level he aims to achieve? He will probably take those pictures as a compliment and the Corvette racers as a reminder?
Title: Re: Recommendations on Street/Track Tires
Post by: zray on February 25, 2018, 10:40:17 AM
the symbolism in the photos is not that that hard to follow. The friends I cared for for many years are just doing the same thing Curt does on the track; dealing with a creature who was just too slow to survive.

Not complicated.


Z
Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on February 25, 2018, 10:57:52 AM
the symbolism in the photos is not that that hard to follow. The friends I cared for for many years are just doing the same thing Curt does on the track; dealing with a creature who was just too slow to survive.

Not complicated.


Z

Sorry. I guess I am just to simple and don't see it? Me bad.
Title: Re: Recommendations on Street/Track Tires
Post by: 1109RWHP on February 25, 2018, 12:56:57 PM
Where is this thread going?
Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on February 25, 2018, 01:17:35 PM
I thought it was pretty much done and will die if you let it?
Title: Re: Recommendations on Street/Track Tires
Post by: SFM5S000 on February 25, 2018, 05:42:55 PM

"........Also, regardless of what the factory did with the Boss 302's, a rear anti-sway bars on these cars is a no-no. ......."

^^^^^^^^

I have yet to see a rear sway bar (on a 65/66) that actually helped anything.

Z

I don't know you guys (Z & shelbydoug). I must be living on the edge when I drive my car. (see pic)
I also stuck a yellow post-it with today's date.



Cheers,
~Earl J
Title: Re: Recommendations on Street/Track Tires
Post by: 427heaven on February 25, 2018, 06:26:11 PM
 That's the one! If some are tired of their cars feeling like they are going to roll over in the turns as opposed to spinning out, give this a look see. :)
Title: Re: Recommendations on Street/Track Tires
Post by: SFM5S000 on February 25, 2018, 06:52:38 PM
This is what motivates the car. I just refreshed it last summer. It's my new Boss block 326 stroker...

(Still looking for the 40mm's)

~Earl J

Title: Re: Recommendations on Street/Track Tires
Post by: SFM5S000 on February 25, 2018, 07:21:35 PM
Re-directing this back to the OP request on tires. I seriously considered the Avons CR6ZZ's but went with the Goodyear VR Eagle (gatorbacks) in 225/60-VR15's (from Kelsey mounted on 15x8 Phil Schmit's 1 piece TA wheels with a 4 3/8" back spacing. Just as pricy as the Avon's though. They read Goodyear and wear like iron for running around on the streets and back roads. I have another set of wheels for the track.

Cheers,
~Earl J
Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on February 25, 2018, 07:40:24 PM

"........Also, regardless of what the factory did with the Boss 302's, a rear anti-sway bars on these cars is a no-no. ......."

^^^^^^^^

I have yet to see a rear sway bar (on a 65/66) that actually helped anything.

Z

I don't know you guys (Z & shelbydoug). I must be living on the edge when I drive my car. (see pic)
I also stuck a yellow post-it with today's date.



Cheers,
~Earl J

I don't know? I sometimes wonder what planet I am from? Not from here obviously?

I have two rear bars hanging from the joists in the shop. 3/4 and 11/16". Poly bushings and all.

They definitely do not work on my car. It must be from Hertz, Mars? Go figure?  ::)
Title: Re: Recommendations on Street/Track Tires
Post by: deathsled on February 26, 2018, 12:10:19 AM
This is what motivates the car. I just refreshed it last summer. It's my new Boss block 326 stroker...

(Still looking for the 40mm's)

~Earl J

Wow!
Title: Re: Recommendations on Street/Track Tires
Post by: zray on February 26, 2018, 12:29:23 AM

I don't know you guys (Z & shelbydoug)......"

I know you    (we must have spent 3 hours talking on the phone re Weber carbs).

Z
Title: Re: Recommendations on Street/Track Tires
Post by: CSX2259 on February 26, 2018, 01:41:04 AM
Here we'll get the thread back on track...........this one has Webers too!
Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on February 26, 2018, 07:43:02 AM
Does it have a Panard bar?  ::)

Did the Blue Streaks come originally with painted on Goodyear or raised white letters? Is there one size, i.e., 1" high or 3/4"?

The blue line was always painted on?

I'm concerned though that here because the car needs an annual inspection, because the tire wall is shaved, the inspector is going to "break 'em" on me and say they are not legal on the street and are race tires?
Title: Re: Recommendations on Street/Track Tires
Post by: 2112 on February 26, 2018, 10:40:46 AM
He said earlier that you can do most any font/script you want.

You think an inspector is going to recognize it isn't factory? I bet they are only required to check tread depth, if that.   ::)

It still sounds like factory BFG's fit your needs best.
Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on February 26, 2018, 10:53:25 AM
He said earlier that you can do most any font/script you want.

You think an inspector is going to recognize it isn't factory? I bet they are only required to check tread depth, if that.   ::)

It still sounds like factory BFG's fit your needs best.

Yes I have had them say "that's an illegal street tire" before. Then look and begrudgingly say ok.

If I have the face of the tire shaved, and all manufacturers required data is missing, for sure they aren't going to pull the wheel to look at the other side.

These guys are ALWAYS looking for work. Why make only $37.50 for the inspection when they can sell you a new set of tires also?


The latest thing is that the tire rating IS REQUIRED to be at the performance level of the vehicle. So even an "S" rating is 'technically' a reason to fail you.

There's all sorts of things that they can pull on you. They can measure the depth of the treads and if it is less then 50% fail them. Same with brake pads.

I don't go to the zoo and poke the lion with the stick. Some might enjoy the challenge. I don't.


I actually had a local cop, after seeing my oxygen sensor on a 90 degree adapter on one of the header collectors in my Pantera tell me in no uncertain terms, "THAT'S ILLEGAL!".

I told him "how can it be illegal if the car never came with exhaust emissions equipment AND it's there for me to monitor my A/F ratio?"

I said in addition, "this is a '73 model and those didn't even exist then yet."  He just shut up after that. He'll be back I'm sure.


I took the oxygen sensor off the car.

Incidentally, "they" do "roadside" noise tests occassionally also. There are so many motorcycles running around with no mufflers at all, most of that effort is limited to them but, "you never know" when the steel hand of the law is going to grab you by the throat?  ;D
Title: Re: Recommendations on Street/Track Tires
Post by: CSX2259 on February 26, 2018, 12:58:26 PM
Does it have a Panard bar?  ::)

Did the Blue Streaks come originally with painted on Goodyear or raised white letters? Is there one size, i.e., 1" high or 3/4"?

The blue line was always painted on?

I'm concerned though that here because the car needs an annual inspection, because the tire wall is shaved, the inspector is going to "break 'em" on me and say they are not legal on the street and are race tires?

The lettering was a raised white letter, the letters in the photo are 3/4" tall. The blue stripe on the original tires was painted on, these are too. We can always leave the DOT information on the tire sidewall, depending on the tire manufacturer we can remove or leave whatever information you like.

No, the Cobra in the photo does not have a "panard" bar. The Cobra in the photo is a recently completed 6000 Series Continuation Cobra.

Back in the 1980s I had a 1970 Plymouth GTX with a factory installed 440+6 (3, 2 barrel carbs). I was pulled over by an officer who proceeded to try and write me a ticket for having a modified engine. I finally won my argument with the officer when I pointed out that the car was all stock and had the engine designation of "V" in the VIN tag on the vehicle. If it happens it happens, there's nothing you can do about it but ride it out.
Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on February 26, 2018, 02:05:26 PM
Does it have a Panard bar?  ::)

Did the Blue Streaks come originally with painted on Goodyear or raised white letters? Is there one size, i.e., 1" high or 3/4"?

The blue line was always painted on?

I'm concerned though that here because the car needs an annual inspection, because the tire wall is shaved, the inspector is going to "break 'em" on me and say they are not legal on the street and are race tires?

The lettering was a raised white letter, the letters in the photo are 3/4" tall. The blue stripe on the original tires was painted on, these are too. We can always leave the DOT information on the tire sidewall, depending on the tire manufacturer we can remove or leave whatever information you like.

No, the Cobra in the photo does not have a "panard" bar. The Cobra in the photo is a recently completed 6000 Series Continuation Cobra.

Back in the 1980s I had a 1970 Plymouth GTX with a factory installed 440+6 (3, 2 barrel carbs). I was pulled over by an officer who proceeded to try and write me a ticket for having a modified engine. I finally won my argument with the officer when I pointed out that the car was all stock and had the engine designation of "V" in the VIN tag on the vehicle. If it happens it happens, there's nothing you can do about it but ride it out.

I'm not unique. It's happened to others also. No one knows for sure what will set them off? It's just best to "position" yourself as best that you can.

The Avon's are probably the direction I am going to go with?

The issue is I have three cars with slightly different requirements. I need to consider the tire sizes for each.  It would make sense to try one set first. This path has a lot of positive options. Then it is a set of priorities. Which one first.

Thanks to all who have posted.

I was kidding about the Panard bar on the Cobra. Panard bars are for live axle cars. Oh and the cop took exception to the Webers on the Pantera also.

Being the person of trying to see both sides, I invited him to stop by anytime he was in the neighborhood. I try not to lecture people. I try to show them my perspective.

Hopefully that will at least gather respect but they have the badges, not me.

IF I can get my sizes, tricked Avon's seem to be the way to go. I have little doubt of that.
Title: Re: Recommendations on Street/Track Tires/sticky tires throwing road pebbles car
Post by: Tinface on March 07, 2018, 10:38:23 AM
Hi all—

I have been following this thread closely because I’m in the same position: looking for non bias tires.

I mentioned I was looking for sticky tires for my gt350. He said—“I went through that with my Viper. The problem was that they were so sticky they picked up and threw little pebbles and road debris on the underside of the car and on the back of the fenders. He ran the Hoozer (if spelling wrong sorry) tires.

Has anyone had a problem with that with ( especially) the Avons but with the  tires too?
Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on March 07, 2018, 10:55:30 AM
I'd expect the Hoosiers to have a very similar tread compound as the Avons.

Even the original Goodyear Polyglass tires were sandblasting the bottoms of the fenders and those things were as hard as concrete.

The 427 Cobra guys always and still do have a problem with the front of the rear fender. I think it is more the tread size and contact patch then it is the compound of the tread itself?

I wouldn't select a tire based upon that.
Title: Re: Recommendations on Street/Track Tires
Post by: zray on March 07, 2018, 03:43:40 PM
As ShelbyDoug notes, there might be other rfactors at play besides the tires compound.  That said, I never had any issues with the rear quarters getting sandblasted with the Avon's or the Pirelli P-4's they replaced.

But if you start getting wider than 215's or 225's then the results may differ.

Z


Title: Re: Recommendations on Street/Track Tires
Post by: Tinface on March 11, 2018, 12:48:43 AM
Thank you very much for your replies about whether or not the super stickie compounds would or wouldn’t throw too much road foter up under the fender wells of my gt350.

M
Title: Re: Recommendations on Street/Track Tires
Post by: SFM5S000 on March 11, 2018, 08:49:01 AM

I don't know you guys (Z & shelbydoug)......"

I know you    (we must have spent 3 hours talking on the phone re Weber carbs).

Z

Hello Z, yes we did talk Webers. I'm still running them obviously. I did the initial breaking on this new short block using a Holley 4v. Anyway, I think it was shortly after you sold your red 66 GT350 several years ago. We also spoke again when you were getting your lower crossmember with the jack pad project off the ground.

Cheers,
~Earl J
Title: Re: Recommendations on Street/Track Tires
Post by: zray on March 11, 2018, 09:08:40 AM
"........Hello Z, yes we did talk Webers. I'm still running them obviously. I did the initial breaking on this new short block using a Holley 4v. Anyway, I think it was shortly after you sold your red 66 GT350 several years ago. We also spoke again when you were getting your lower crossmember with the jack pad project off the ground.

Cheers,
~Earl J

that's right ! that was 3 1/2 years ago. your memory is as good as ever.

....  and BTW, I owe you a special thanks.  I took your sound advice and made the jack pads 1/4" thick right from the beginning.

Z.
Title: Re: Recommendations on Street/Track Tires
Post by: CSX 4133 on March 11, 2018, 09:56:12 AM

In regards to the thrown up debris on roads/track use, I've used the XPEL Tracwrap product to protect lower fender areas. The wrap is a temporary product that is easily applied and removed and is invisible once applied. I have the XPEL clear bra product on several cars from the same company, it's a quality product.

http://www.xpel.com/xpel-tracwrap-temporary-ppf/
Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on March 11, 2018, 10:31:15 AM

In regards to the thrown up debris on roads/track use, I've used the XPEL Tracwrap product to protect lower fender areas. The wrap is a temporary product that is easily applied and removed and is invisible once applied. I have the XPEL clear bra product on several cars from the same company, it's a quality product.

http://www.xpel.com/xpel-tracwrap-temporary-ppf/

The Cobras are known for stone stars in the tops of the fenders also. In the 70's some were gluing shields inside the fenders.
Title: Re: Recommendations on Street/Track Tires
Post by: Bob Gaines on March 11, 2018, 07:49:30 PM

In regards to the thrown up debris on roads/track use, I've used the XPEL Tracwrap product to protect lower fender areas. The wrap is a temporary product that is easily applied and removed and is invisible once applied. I have the XPEL clear bra product on several cars from the same company, it's a quality product.

http://www.xpel.com/xpel-tracwrap-temporary-ppf/

The Cobras are known for stone stars in the tops of the fenders also. In the 70's some were gluing shields inside the fenders.
The people that don't want the paint stars still do ;) .
Title: Re: Recommendations on Street/Track Tires
Post by: shelbydoug on March 11, 2018, 08:26:17 PM

In regards to the thrown up debris on roads/track use, I've used the XPEL Tracwrap product to protect lower fender areas. The wrap is a temporary product that is easily applied and removed and is invisible once applied. I have the XPEL clear bra product on several cars from the same company, it's a quality product.

http://www.xpel.com/xpel-tracwrap-temporary-ppf/

The Cobras are known for stone stars in the tops of the fenders also. In the 70's some were gluing shields inside the fenders.
The people that don't want the paint stars still do ;) .

But that's a deduction.  ;)