Oddball (for me) tire wear
Thread Starter
Rennlist Member
Joined: Feb 2004
Posts: 12,312
Likes: 10
From: Roseville, CA
Ken, I would string the car up again and see where it is sitting, realistically the only thing that can be going wrong here is a toe issue. Do you have a rod end on your toe or K-toe links that has gone bad, causing changes under load of this alignment. Have you broken a rear swaybar link causing the backend to be loose (as per the video). What about wheel bearings, is there any noise or movement?
Just throwing ideas at you here
Just throwing ideas at you here
Thanks for throwing. I know a lot about these things, but I also don't know a lot......
It will get it set up again next week before Friday's track day. K-Toe links are solid. Broken rear bar link would cause understeer. (Pic #2 was run with the rear bar disconnected the last 25% of their life, they were so bad. So it's not that at all.) Bearings/everything is tight. I'd be more suspect that a corner was bad if only one side had the inner edge burned. Thunderhill (where these tires ran 100%) is predominately left handed. Only the medium speed, off camber T3, slow and not unkind to rear tires 5A, and slow "watch it so you don't oversteer" T14/15 are right handed. I've never had a left rear cord on the inside. And this goes back 12 years since the full course has been built, with the '92 C4, 74 3.6L widebody, '73 S, RSA racer, RSA #2, '73 RS clone, '97 4S, Radical, 910, SM, and this car.
I'm sure you watched the videos posted. One thing this car does NOT do is spin an inside rear. Though I can't say I've measured the break torque on the LSD since I got the car, I suppose I'll give it a check since it's easy enough to do.
