Very weird tyre wear

**DazBlackCSL** · 22-07-2010, 06:39 PM

Just wanted opinions on this , running obviously the same camber both sides, but the drivers front has worn inside edge through to the wires

Been running a set up Raeder in germany did on the monday AM when I was late arriving at Spa on our big trip a month or so ago , running a fair bit of camber -3 which is a bit too much for the road !!

Lazy so never change it

but still should be worn the same really I would of thought unless something is amiss

Car going down to a specialist next friday for a check up prior to Ring trip on Aug 6th, so just thought id see if anyone had any ideas

Only noticed by a mate as I was pulling out on full lock !!!

thegingerninja · 22-07-2010, 06:46 PM

Too much toe-out? ....but the camber is probably the main reason.

mattCSLnut · 22-07-2010, 06:52 PM

Quote:

Originally Posted by DazBlackCSL

Just wanted opinions on this , running obviously the same camber both sides, but the drivers front has worn inside edge through to the wires

Been running a set up Raeder in germany did on the monday AM when I was late arriving at Spa on our big trip a month or so ago , running a fair bit of camber -3 which is a bit too much for the road !!

Lazy so never change it

but still should be worn the same really I would of thought unless something is amiss

Car going down to a specialist next friday for a check up prior to Ring trip on Aug 6th, so just thought id see if anyone had any ideas

Only noticed by a mate as I was pulling out on full lock !!!

WOW !!! that is very unusual and what a waste of a decent CUP

but IMHO I think it looks like your tyre has been rubbing on something rather then road wear ???
Have a look under the wheel arch to see rubber deposits on suspension components etc as a first port of call.

s.mac · 22-07-2010, 06:53 PM

lucky you spotted it mate

**DazBlackCSL** · 22-07-2010, 07:05 PM

Quote:

Originally Posted by s.mac

lucky you spotted it mate

I know !!! Blasting along and bang ...

TANKSLAPPER · 22-07-2010, 07:44 PM

Here's my pennies worth

TOO MUCH CAMBER & /OR TO SOFT ON BUMP

The main part of this wear is caused by heavy braking. the front suspension flexes under load, the distance between the top mount to the centre of the wheel decreases as the spring is compressed. so you were probably getting -5 camber under braking and thus at the same time only the inside of the tyre was touching the tarmac, which in turn heats the inside of the tyre up which increases the wear

I would try 2.5 camber and stiffer bumper and rebound settings

**DazBlackCSL** · 22-07-2010, 08:07 PM

Quote:

Originally Posted by TANKSLAPPER

Here's my pennies worth

TOO MUCH CAMBER & /OR TO SOFT ON BUMP

The main part of this wear is caused by heavy braking. the front suspension flexes under load, the distance between the top mount to the centre of the wheel decreases as the spring is compressed. so you were probably getting -5 camber under braking and thus at the same time only the inside of the tyre was touching the tarmac, which in turn heats the inside of the tyre up which increases the wear

I would try 2.5 camber and stiffer bumper and rebound settings

coolio will have a play with it when it's up there !!

**glendog74** · 22-07-2010, 08:50 PM

From the pics, it looks like that tyre is not far from being worn anyway?

shane@mbtech · 22-07-2010, 09:10 PM

Looks definitely like toe to me.

What camber and toe setting did they dial in?

NZ_M3 · 24-07-2010, 12:35 PM

Doesn't look like a toe issue to me actually as the tread blocks are all still relatively flat - i.e. no tell tale toe wear where the blocks rise on one end vs the other.

I agree with TANKSLAPPER'S assessment - Camber + lower compression (or front springs too soft).

Might want to check your front control arm bushings as if those are worn you'd be going to excessive toe out under braking, accelerating inner wear.

22-07-2010, 07:44 PM	#6
TANKSLAPPER S5, Sport Off, DSC M-track Join Date: Nov 2008 Posts: 801 Casino cash: $8979	Here's my pennies worth TOO MUCH CAMBER & /OR TO SOFT ON BUMP The main part of this wear is caused by heavy braking. the front suspension flexes under load, the distance between the top mount to the centre of the wheel decreases as the spring is compressed. so you were probably getting -5 camber under braking and thus at the same time only the inside of the tyre was touching the tarmac, which in turn heats the inside of the tyre up which increases the wear I would try 2.5 camber and stiffer bumper and rebound settings __________________ Club Tankslapper: No doughnuts or wingnuts, if but’s, and monkey nuts. It's not a proper accident until you eat hospital food

22-07-2010, 08:50 PM	#8
glendog74 CSL Register Uber-poster! Tetris Champion! Join Date: Apr 2008 Location: Cornwall Posts: 8,861 Casino cash: $32299	From the pics, it looks like that tyre is not far from being worn anyway? __________________ Cha'mone Mother F**ker!

22-07-2010, 06:46 PM	#2
thegingerninja S5 - Full Throttle Join Date: Apr 2008 Location: Cheshire Posts: 370 Casino cash: $4367	Too much toe-out? ....but the camber is probably the main reason.

22-07-2010, 06:53 PM	#4
s.mac CSL Register Uber-poster! Join Date: Jun 2008 Posts: 4,247 Casino cash: $15600	lucky you spotted it mate

22-07-2010, 09:10 PM	#9
shane@mbtech CSL Register Uber-poster! Join Date: Feb 2009 Location: warrington Posts: 5,419 Casino cash: $19783	Looks definitely like toe to me. What camber and toe setting did they dial in?

24-07-2010, 12:35 PM	#10
NZ_M3 S5, Sport On, DSC M-track Join Date: Jun 2008 Location: Auckland, New Zealand Posts: 1,434 Casino cash: $13579	Doesn't look like a toe issue to me actually as the tread blocks are all still relatively flat - i.e. no tell tale toe wear where the blocks rise on one end vs the other. I agree with TANKSLAPPER'S assessment - Camber + lower compression (or front springs too soft). Might want to check your front control arm bushings as if those are worn you'd be going to excessive toe out under braking, accelerating inner wear.