I posted this in the suspension section but never got any feed back. Alright so over the last couple of days my passenger rear has been scrubbing over small bumps and light throttle. The setup I am running was pushing the limits, but for over a month it has not scrubbed until recently. The car gets drag raced on friday nights, about 7k rpm launches. Kinda sounds like metal on metal, but upon lifting the car i see no indication or the axles, drive shaft, or tires scrubbing on anything. Do you think i twisted something or maybe its some bushings?

 

do you mean you are bottoming out over small bumps? (the chassis hitting the ground?)
or are you rubbing at the top of the wheel well?

 

neither. I know the car isnt bottoming out because it never has, and there is no signs of the wheel scrubbing anywhere in the wheel well either. That was the first thing i checked. My next thoughts were axles and drive shaft possibly rubbing something? but i dont really see anything. My friend suggested that i might have warped my PPF with the 7k rpm launches on slicks?

 

Why do you need 2 threads on this?

http://www.bbs-usa.com/race-wheels-d...?CLID=66&WF=11


John

 

Why are you posting a link to a wheel that I have no interest in? And if you read the first post its due to nobody replying in almost a week to that thread

 

if it sounds metal on metal could it be your diff maybe going? i mean 7k launches are brutal

 

Yeah but I think it it was my diff, it wouldn't just be when my car squats far enough. It would be all the time right?

 

Those launches are tough on the diffs. and the oem diff bushings start to tear too.
When the diff bushings start to go the diff can torqe more under load especially if PPF is giving too.

 

Yeah im just going to take the PPF off and switch to the Samberg cradle/diff brace and the Aspec Tuning Trans brace.

 

My passenger rear tire rubs over bumps and hard acceleration. Funny thing is my passenger sits 3/4" higher than the driver yet my driver side wheels don't rub. Someone said my pass rear shock is done. But I can tell its getting bad cause the sidewall of the tire is showing the damage from all the intermittent rubbing.