Tire Rubbing
02-02-2009, 10:44 AM
#16
Team Owner
Just to add some more to the mix . My car came with aftermarket wheels and the fronts looked like they would clear .. this was a 16 inch wheel . sure enough hard cornering a touched and could see it cuting up my tire.
Went to a 17 inch aftermarket andit stuck out further .... oh no I thought... has never ever touched under the same conditions. My theory is the larger sidewall on the 16 inch wheel to make up the same rolling radius flexes out more under heavy loading and catches the fender.
The 17 inch wheel has less sidewall rubber , a lot less flex and tucks under ...
Goes to show there is the intangebles as well as the math ...
Went to a 17 inch aftermarket andit stuck out further .... oh no I thought... has never ever touched under the same conditions. My theory is the larger sidewall on the 16 inch wheel to make up the same rolling radius flexes out more under heavy loading and catches the fender.
The 17 inch wheel has less sidewall rubber , a lot less flex and tucks under ...
Goes to show there is the intangebles as well as the math ...
02-02-2009, 05:04 PM
#18
Instructor
Join Date: Nov 2003
Location: Wake Zone Coffee House in Apex, NC
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I recently had my 87 lowered and corner balanced, running 205/16 in front and 225/16 in rear. Did a HPDE and ended up cutting up a front tire when the front suspension compressed on a hard turn. Would strongly suggest having the front inner fenders rolled; have not had an issue since the fronts have been rolled. At least now if the tires do rub, which they have not so far in 2 events, it will not cut the tire.
02-12-2009, 09:23 PM
#22
I haddah Google dat
Rennlist Member
Rennlist Member
The front tires will catch the fender lip if you are using a 7" Fuchs with 205s, I agree.
I only have problems when I turn into driveways because the inner tire "pulls" on the fender lip. The outer tire, when you are turning on level pavement, will "push" the fender lip in, and this is not normally a problem unless you have really soft springs and the body really rolls.
My solution is to let off the brakes just before turning into a driveway. No more tire rubbing. I have very low negative camber because I do mostly street driving.
I only have problems when I turn into driveways because the inner tire "pulls" on the fender lip. The outer tire, when you are turning on level pavement, will "push" the fender lip in, and this is not normally a problem unless you have really soft springs and the body really rolls.
My solution is to let off the brakes just before turning into a driveway. No more tire rubbing. I have very low negative camber because I do mostly street driving.
