Corvette C2 63' race car tire wear.

[Michael88]

Yes I've used the search function, with no results.

Just bought a Corvette C2 63' racecar for about 730K bucks and gave it a first run on the Nürburgring. Knowing that those old muscle cars are hard on rear tires I set the rear toe to 0, camber too. No Aids.

And you know what? I love driving the Minolta 88C-V or the Nissan R89c around the Ring with no aids and hard racing tires, the tires last about 4-5 laps if I don't push too hard.
The hard rear tires of the Corvette last...about two minutes and are completely gone at the Karussell on the first lap.

What the..... And no, I don't do any drifts or burnouts, even being very gentle with the throttle doesn't help at all, just half-throttle in tight corners heats up the tires to the point they start smoking. The hell?

No need to mention the car is completely useless with this tire problem.

Help!

 

[Michael88]

Anybody?

 

[Jacob]

Anybody?

I'm not a tuning expert, but I think you have to experiment a bit with the camber. I would say that it has a pretty big effect on tire wear.

 

[Motor City Hami]

What do the front tires look like when the rears are worn out? Tire wear comes from more than just rear toe and camber. Camber at zero may not be what the car needs, so the rear tires may actually be sliding and wearing out the outside edge faster? The game needs temp readings across the tire to really see it.

I find that the car's overall setup has more to do with tire wear than any one setting. The front/rear balance of the car must be tuned so that the car will wear all four tires close to equally. It doesn't sound like you have done the work to make that happen.

I don't have a tune posted for the 63 Vette, but I do have tunes posted for the 71 Mustang and the ZR1 Corvette. Try one of those tunes from my garage and you'll get closer. See my garage here...

https://www.gtplanet.net/forum/showthread.php?t=167421

 

[Michael88]

Its not the fine tuning, there is something dramatically wrong with the car, its like the car has a locked rear differential and both tires spin equally fast no matter the corner. The slower tire in a corner heats up extremely quickly (it goes from dark blue to white in a matter of 5-6 slow corners) and I can hear the tire squeal even without losing traction in the corners. I have the same problem with the Z8 race mod, but to a far lesser extend.

The front tires are completely unaffected and behave like all the other hard racing tires on other cars.

 

[Motor City Hami]

I'm not talking fine tuning. What are your diff settings? LSD can have the biggest affect on tire wear. Maybe take the diff settings from my LM1 Vette and try them? Or from the 71 Mach 1?

 

[Michael88]

I spent Hours fiddling around with the differential settings, but no success at all. I've tried all extreme settings and some in between, it can't be fixed via the differential.
It feels like the car does not have a differential to begin with. In a corner the inner tire goes from dark blue to white in a matter of 4-5 corners, two gentle laps around Tsukuba is enough to toast the rear tires.

I guess the car is just completely broken.

 

[Michael88]

Fixed it. Just found out that I missed the GT update. DUH!

Now with the update the tire wear of the C2 Corvette is far less dramatic but it was still excessive. Swapped the racing differential with the standard differential and now it works like a charm!

 

[DGXR]

TCS and LSD will help manage tires with powerful FR cars.

Sometimes the driving aids *actually help*... after all, that's what they are for.

 

[200MphFord]

Dont just settle for using the stock differential, you can tune this cars diff for less tire wear. Just mess with the initial torque and acceleration sensitivity to find the right tuning. I've done this in some of my other high powered rear drive cars to make the tires last if only a few more laps.