(https://i.imgur.com/t4vUDsf.jpg?1)
I was out on an early morning drive at 06:00 today traveling though misty patches which added to the mystique of driving a Shelby Mustang almost as old as me. I got up to 70 mph and the engine was screaming 4,000 rpm which perhaps is normal for a 3:50 rear end. I noticed a vibration which I attributed to the rear trap door but at home I saw my side exhaust pipe on the driver's side was lightly touching the body. Underneath, the glass pack was sagging lower in the middle. Other side is fine. I must've lost a clamp. Anyone have any similar issue before? So the music has died. For now.
Going to jack her up when the sun begins to set. Too damn hot to be laying on a black asphalt driveway. It should be something very simple. I will just do a side by side comparison with the right exhaust.
I always sang the song drove my Shelby to the Levee.
Quote from: deathsled on July 25, 2021, 11:21:01 AM
(https://i.imgur.com/t4vUDsf.jpg?1)
I was out on an early morning drive at 06:00 today traveling though misty patches which added to the mystique of driving a Shelby Mustang almost as old as me. I got up to 70 mph and the engine was screaming 4,000 rpm which perhaps is normal for a 3:50 rear end. I noticed a vibration which I attributed to the rear trap door but at home I saw my side exhaust pipe on the driver's side was lightly touching the body. Underneath, the glass pack was sagging lower in the middle. Other side is fine. I must've lost a clamp. Anyone have any similar issue before? So the music has died. For now.
Going to jack her up when the sun begins to set. Too damn hot to be laying on a black asphalt driveway. It should be something very simple. I will just do a side by side comparison with the right exhaust.
4000 rpm @ 70 sounds too high too me for 3.50s. Sure you don't have a lower gear, or perhaps short sidewalls?
I've had non-modified cars with 4.11s that ran 4000 rpm at 80 mph.
The car has Klutt's close ratio Toploader racing transmission with the Richmond gears. Maybe the tachometer is reading incorrectly? The tires on the car are currently 215 60R 15 in the rear and 210 60R 15 in the front. Suggestions?
Literally blew out my glass packs on the way to mini nats years ago - long noisy drive. haha
I always drive with ear plugs. Problem solved in that area.
A coat hanger will fix that right up - lots cheaper than the job specific bailing wire.
Quote from: 98SVT - was 06GT on July 25, 2021, 11:33:20 PM
A coat hanger will fix that right up - lots cheaper than the job specific bailing wire.
Jacked up. Looks like there are only two attachment points. I'm just going to take red to a shop and throw her on a hoist and let them figure it out. I can't do everything in this life.
Quote from: deathsled on July 25, 2021, 10:05:07 PM
The car has Klutt's close ratio Toploader racing transmission with the Richmond gears. Maybe the tachometer is reading incorrectly? The tires on the car are currently 215 60R 15 in the rear and 210 60R 15 in the front. Suggestions?
I had a similar issue with the orginal tach; it shows much higher RPM for a given speed than I thought. Put in an aftermarket tach and now with 3.50 at 70 mph runs arounds 3200 rpm. the difference is most dramatic at lower rpm's. above 4000 the tachs are similar
Quote from: 66S285 on July 26, 2021, 03:05:49 PM
Quote from: deathsled on July 25, 2021, 10:05:07 PM
The car has Klutt's close ratio Toploader racing transmission with the Richmond gears. Maybe the tachometer is reading incorrectly? The tires on the car are currently 215 60R 15 in the rear and 210 60R 15 in the front. Suggestions?
I had a similar issue with the orginal tach; it shows much higher RPM for a given speed than I thought. Put in an aftermarket tach and now with 3.50 at 70 mph runs arounds 3200 rpm. the difference is most dramatic at lower rpm's. above 4000 the tachs are similar
^^+1
Richard: Or is it your speedometer? Or some of both? Is your 4th gear a 1:1?
^^^
I can't tell if speedo though I did measure it against an unmanned radar gun in the area and 40 mph matched spot on. I don't know if 4th gear is 1:1. I can call Klutt and see if he recalls.
I'd bet it's 1:1, but you never know in a race setup. Just wanted to cover the revving possibilities.
Try the speed trap radar at 70 and see what it says. 8)
First let me say that I am not a doctor nor do I portray one on TV.
But if a where an M.D. by the symptoms explained by the patient, I would say the malady would be ujointitis ooooor weightoff driveshaftism.
Check both u joints or loss of a weight on drive shaft. Take two aspirins and contact me in the morning after 9:30 a.m.
Well there is some vibration at 60 plus mph. I had considered getting the driveshaft balanced.
Quote from: deathsled on July 26, 2021, 06:55:35 PM
Well there is some vibration at 60 plus mph. I had considered getting the driveshaft balanced.
Oh heck easy fix, keep it under 59 MPH
Quote from: FL SAAC on July 26, 2021, 07:38:05 PM
Quote from: deathsled on July 26, 2021, 06:55:35 PM
Well there is some vibration at 60 plus mph. I had considered getting the driveshaft balanced.
Oh heck easy fix, keep it under 59 MPH
But how will I get up to 88 mph and go back to 1965 and buy a couple Cobras and R models and stash them away with zero miles until I travel back to present day and remove them from storage with good title to them?
Well that's all Don has to say about that
What is it with musicians and planes? Oh, wait a minute...
Quote from: deathsled on July 26, 2021, 10:08:13 PM
What is it with musicians and planes? Oh, wait a minute...
Hello baby, chantilly lace....woooops, boom !
Broken flange where it connects to the header. I didn't stand a chance doing this one on my own. I have limits.
Quote from: deathsled on July 27, 2021, 11:33:12 AM
Broken flange where it connects to the header. I didn't stand a chance doing this one on my own. I have limits.
Easy fix use gorilla glue
Just don't put any in your hair.....
Quote from: FL SAAC on July 27, 2021, 11:44:24 AM
Quote from: deathsled on July 27, 2021, 11:33:12 AM
Broken flange where it connects to the header. I didn't stand a chance doing this one on my own. I have limits.
Easy fix use gorilla glue
Just don't put any in your hair.....
Solves most problems. Hair, no.
Looks positively stupid with the orange rag protecting the body from rubbing.
Quote from: Side-Oilers on July 26, 2021, 04:07:25 PM
Quote from: 66S285 on July 26, 2021, 03:05:49 PM
Quote from: deathsled on July 25, 2021, 10:05:07 PM
The car has Klutt's close ratio Toploader racing transmission with the Richmond gears. Maybe the tachometer is reading incorrectly? The tires on the car are currently 215 60R 15 in the rear and 210 60R 15 in the front. Suggestions?
I had a similar issue with the orginal tach; it shows much higher RPM for a given speed than I thought. Put in an aftermarket tach and now with 3.50 at 70 mph runs arounds 3200 rpm. the difference is most dramatic at lower rpm's. above 4000 the tachs are similar
^^+1
Richard: Or is it your speedometer? Or some of both? Is your 4th gear a 1:1?
Yes 1 to 1. Speedo probably slow too. As we all know in the old days they could be at least 10 mph off.....officer
Yes 1:1
Flange fixed with a full bead weld I believe is what they called it. Should be good now for a while. There is a shortage of welders up here in Chicagoland apparently.
Quote from: deathsled on July 27, 2021, 03:46:28 PM
Flange fixed with a full bead weld I believe is what they called it. Should be good now for a while. There is a shortage of welders up here in Chicagoland apparently.
See you should have answered those "extended warranty" calls......
Quote from: deathsled on July 27, 2021, 11:33:12 AM
Broken flange where it connects to the header. I didn't stand a chance doing this one on my own. I have limits.
Clint Eastwood. A man has to know his limits
Quote from: 66S285 on July 27, 2021, 05:44:23 PM
Quote from: deathsled on July 27, 2021, 11:33:12 AM
Broken flange where it connects to the header. I didn't stand a chance doing this one on my own. I have limits.
Clint Eastwood. A man has to know his limits
Magnum Force. Great series of movies with ol' Clint.
Quote from: 68GT350roadracer on July 25, 2021, 05:03:58 PM
I always sang the song drove my Shelby to the Levee.
If they had driven a Ford to the Levee, they would have arrived before it had dried.
Quote from: 2112 on July 28, 2021, 02:32:31 AM
Quote from: 68GT350roadracer on July 25, 2021, 05:03:58 PM
I always sang the song drove my Shelby to the Levee.
If they had driven a Ford to the Levee, they would have arrived before it had dried.
Pie anyone
Quote from: 2112 on July 28, 2021, 02:32:31 AM
Quote from: 68GT350roadracer on July 25, 2021, 05:03:58 PM
I always sang the song drove my Shelby to the Levee.
If they had driven a Ford to the Levee, they would have arrived before it had dried.
So true!
Gee, I stepped outside briefly to check my car and it seems the topic has changed.
Like deathsled, my car is equipped with a 3:50 rear end and turns 4,000 at 70mph; this is on BFG 14" radial T/A's.
Quote from: red66 on July 29, 2021, 10:43:26 AM
Gee, I stepped outside briefly to check my car and it seems the topic has changed.
Like deathsled, my car is equipped with a 3:50 rear end and turns 4,000 at 70mph; this is on BFG 14" radial T/A's.
Thanks for reporting on that. Now, perhaps, the rpms are accurate for this setup. But then again maybe the tachs read incorrectly in the same way.
Interesting. As a point of reference, I, too, have 3:50 differential gears with 205/70 x 14 tires and turn 3500 at 70. Tach has
been repaired by Phil Severence and the speedo is dead nuts on verified by my phone Speeodometer app.
I'm also running 205/70-14 on my 66 with 4.11 gears. At 70 mph I'm just under 4000 RPM. According to the online engine RPM calculators (there are many), I should be running 3821 RPM @ 70 MPH with those tires (assuming the online tire calculators are correct) so looks to be right on the money.
Ran past a stop sign "radar" today. Speedomruns 3-4/mph slow. So at 70 running 3400. 215 15 Hankooks