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Incredible tyre wear and possible geo/setup problem

Well GD, looks like the Forum have got your buddy a lot of data here to follow up the problem.
Regards Big Bob
 
Hi,

Yes, this has been fantastic...really appreciate the responses.

I think the Nissan 350z known issue is slightly different and refers to uneven wear....but I'll pass the information on!

With regards to this point:

".... is the rears and they are wearing evenly acroos the width of both tyres, it does not point to rear geometry. Does the car have a limited slip diff? It might be a problem with the differential causing the wear, especially, if he does a lot of turning in cities etc. "

I suspect the 350z will have a limited slip/diff. Can you please elaborate as to why this would be a problem? Yes, he lives in the middle of a busy town (near me, in fact), so it would be a lot of turning, reversing (avoiding pot holes!!! etc).

The car is still under warranty, so this could be well be covered!
 
GD said:
Hi,


".... is the rears and they are wearing evenly acroos the width of both tyres, it does not point to rear geometry. Does the car have a limited slip diff? It might be a problem with the differential causing the wear, especially, if he does a lot of turning in cities etc. "

I suspect the 350z will have a limited slip/diff. Can you please elaborate as to why this would be a problem? Yes, he lives in the middle of a busy town (near me, in fact), so it would be a lot of turning, reversing (avoiding pot holes!!! etc).

The car is still under warranty, so this could be well be covered!

No Probs GD. When you are turning a corner, the inner driven wheel has to turn less times than the outer one. Think of a compass point stuck in the paper, as you scribe the circle with the outer leg, the outer leg travels a lot further than the inner, which is in fact stationary.
Much the same with the car, but the differential allows the inner wheel to travel the shorter distance. However with a Limited Slip Diff or a Diff Problem the inner wheel still wants to turn like the outer, and compensates by scrubbing the rubber, instead of activating the diff.
Hopefully thats an understandable explanation :chin:
Regards Big Bob :bye:
 

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