Vicious-Z06

I'm running a c6Z with Dunlop Slicks. I have 2.5 neg camber in the front with a small amount of Toe out. I keep cording the outer edge of the front left tire. I figured with all that camber this wouldn't be possible..

I only have been getting 2 track days out of the left fronts. My last day was at NJMSP, the lightning track which is tough on the left front, but I expected a little more than 2 days worth.

My wheel bearings and front end all seems tight.. Can Toe cause this??

The car also has T1 sways and coil overs so there is very little if any body roll.

Tire pressure is at 33-35 hot.

Is this just the result of hard driving? or could something be wrong?

96CollectorSport

Nothing wrong just time to get a set of poly bushings.

We run perelli and dunlop slicks and before we put the bushings in we would always cord the tires about 1.5" from the outside edge, after the bushings we started using the whole tire and the wear was closer to the outside 4".

Even with 2.5 neg in the front you still get a ton of deflection out of the stock rubber bushings you are probably closer to 0 once things firm up.

Sidney004

You still don't have enough negative camber. I had the same issue with my Dunlops(fantastic tires.) I watched a Dunlop test day at Laguna Seca for the BMW ALMS team and spoke with the English Dunlop engineers, they run a 300/660 on a 12" wide rim, approx. 30 psi hot and -3.5 in front on pure race cars.

wtknght1

Yep, you definitely need to get the T1 lockout plates for the lower control arms and remove the shims from the upper arm, which should get you to about -3 or so. After that, look at doing a polyurethane replacement for all your rubber bushings.

There are some other tricks of the trade too. Email me for more info.

wtknght1@aol.com

Vicious-Z06

thanks. I'm rechecking the alignment and will consider the bushings for next season. I only have 3 track days left this year.