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Old 06-22-2020, 10:38 PM   #4
trinidadj
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Drives: '16 FRS-MT Ablaze Red
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Quote:
Originally Posted by ZDan View Post
0.19 inches total rear toe (0.44 degrees!) is IMO too much. People always say it "adds stability" but in my experience more than *just a smidge* causes the rear to be unstable when you want the car to go straight, and gives understeer when you want it to turn in. And kills tire life. Sucks for *everything*.

Have them knock rear toe-in down to about 0.1 *degrees* total, or 0.04 inches total.

Also worth noting that brand new rear tires at full tread depth will have noticeably more tread squirm, which could be part of what you're feeling.

The symptoms your describing are pretty much whats happening.


"causes the rear to be unstable when you want the car to go straight, and gives understeer when you want it to turn in"



I think its probably the alignment as well. The alignment guy said this would be a good set up even though I told him to I really wanted to go with -2.5 front camber, 0 front toe and -2.0 rear camber, 1/16" rear toe in. Guess its time find a different shop lol.
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