Quote:
Originally Posted by R. Mutt
I disagree because of my personal experience. I should have been more specific when I said suspension: steering geometry. There are two main reasons for brake vibration. The first is steering geometry issues and the second is installation or hub run-out issues. Both of these are components of a vehicle's suspension. Steering geometry issue can develop from hitting a curb or pot hole. I have had this very issue on my evo 9.
In my case the suspension was way out of alignment due to steering geometry issues and I developed groves in my rotors as they wore unevenly over time. Again note...this happened over time and wasn't something noticeable immediately. Of course I didn't know this at the time and as such couldn't resolve the issue despite trying different pad compounds until the car got another alignment as it turns out that the settings had deviated substantially due to another issue. This also resulted in wearing down a set of Michelin PSS down to almost no tread withing a 1.5 year time span and less than 10,000 miles. So yes suspension can have a huge impact on brakes among other components.
As per this being a G35 specific issue...you'd know more than me. However the fact remains that suspension can and will have a severe impact on braking. Moreover the OP stated
So once again...sounds like suspension related issue to me.
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OP has not abnormal tire wear issues, is a dealer service car with everything up to date and is driving a car KNOWN for brake issues causing pad transfer to the rotors due to the pad compound being used.
IF it has ANYTHING to do with the suspension the vibration at speed would be felt even after replacing calipers/rotors/pads, it would not be gone for 10k and then come back.
This has nothing to do with suspension, it is the pads. G35's had this issue, its well known. Hell, take a die grinder with a scuff cookie on there and just rip it across the rotors and make a fresh surface for the pads to contact and go for a drive, the vibration will be gone but will return after a short while as the pad material re-transfers to the rotor.
Unless your EVO 9 had its hubs changed when you had it aligned you had no brake issues. Caster, camber, toe and thrust angle are the standard things adjusted during an alignment, none of which have any impact on brake wear or function but they WILL destroy tires. You can disagree till your blue in the face, but the fact of the matter is there is no suspension geometry change that effect rotor to pad wear or alignment. If you find one I would love to know about it so I can better do my job
