Tyre wear
11-09-2017, 07:42 AM
#1
Instructor
Thread Starter
Tyre wear
Hi,
Is it normal to have the inside edge of the rears wear really badly compared to the rest of the tyre?
Just junked a set of rear tyres that were bald on one inch and had 4mm of tread on the rest of the tyre.
Is it a set up thing, or am i not driving it hard enough?
Is it normal to have the inside edge of the rears wear really badly compared to the rest of the tyre?
Just junked a set of rear tyres that were bald on one inch and had 4mm of tread on the rest of the tyre.
Is it a set up thing, or am i not driving it hard enough?
11-09-2017, 09:59 AM
#2
Rennlist Member
Hi,
Is it normal to have the inside edge of the rears wear really badly compared to the rest of the tyre?
Just junked a set of rear tyres that were bald on one inch and had 4mm of tread on the rest of the tyre.
Is it a set up thing, or am i not driving it hard enough?
Is it normal to have the inside edge of the rears wear really badly compared to the rest of the tyre?
Just junked a set of rear tyres that were bald on one inch and had 4mm of tread on the rest of the tyre.
Is it a set up thing, or am i not driving it hard enough?
11-09-2017, 10:48 AM
#3
Rennlist Member
sounds like a prior owner installed some wide rims / tires & set negative camber so they wouldn't rub in the corners.
what size setups are you running in the rear?
Agree w/ Cobalt, get an alignment & have them tell you what negative camber you're running before they make any changes. You may have to play with it to get it just where you want it.
If you have adjustable coilovers, you may end up playing with the height too.
=Steve
what size setups are you running in the rear?
Agree w/ Cobalt, get an alignment & have them tell you what negative camber you're running before they make any changes. You may have to play with it to get it just where you want it.
If you have adjustable coilovers, you may end up playing with the height too.
=Steve
11-10-2017, 12:12 AM
#5
Rennlist Member
You should actually be able to see if you have negative camber with your naked eye too.
Take a straight edge (2x4 or other) and hold it against the outer edge of your rear rim or tire (top to bottom) and put a level on it. See how far away it is from plumb.
OR, for example, if you use a 19.5" string, and then measure the top gap between the string and top edge of the rim,... you can use these calculations...
.4" Gap: .4 / 19.5 = -2 degrees camber
.3" Gap: .3 / 19.5 = -1.5 degrees camber
.2" Gap: .2 / 19.5 = -1 degree camber
This might give you just a close guess to whether your running a heavy amount of negative camber.
To give you perspective, I'm running 18" RH36 rims x 10" width, with 285x30 tires. The tires are very close to the quarter panel lip, so I run negative 1.3 degrees, and just slightly higher than RS height. This gives me just barely enough clearance when I running hard in cornering (with the amount of body roll I get). I'm using H&R Coilovers with Boge shocks.
Hope this helps. Let us know what you figure out.
=Steve
Take a straight edge (2x4 or other) and hold it against the outer edge of your rear rim or tire (top to bottom) and put a level on it. See how far away it is from plumb.
OR, for example, if you use a 19.5" string, and then measure the top gap between the string and top edge of the rim,... you can use these calculations...
.4" Gap: .4 / 19.5 = -2 degrees camber
.3" Gap: .3 / 19.5 = -1.5 degrees camber
.2" Gap: .2 / 19.5 = -1 degree camber
This might give you just a close guess to whether your running a heavy amount of negative camber.
To give you perspective, I'm running 18" RH36 rims x 10" width, with 285x30 tires. The tires are very close to the quarter panel lip, so I run negative 1.3 degrees, and just slightly higher than RS height. This gives me just barely enough clearance when I running hard in cornering (with the amount of body roll I get). I'm using H&R Coilovers with Boge shocks.
Hope this helps. Let us know what you figure out.
=Steve
