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Old 12-02-2024, 02:29 PM   #340
Tatsu333
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Join Date: Jan 2017
Drives: 2020 BRZ Sport Tech RS
Location: Canada
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Quote:
Originally Posted by StraightOuttaCanadaEh View Post
I'm on 18x8.5. There is a bit of stretch in the sidewall. Yeah and having driven on super gummy tires, I gotta be honest it just doesn't even feel like an 86 anymore lol. Reason I'm suspecting the car and not the tires is that apart from the coilovers, I also have both of the whiteline diff inserts (outrigger and the other one) and subframe inserts as well. So there is no slack, which makes me theorize that maybe by moving the suspension pick up point, I will introduce slack that might help with grip
Quote:
Originally Posted by DocWalt View Post
What?

I've used snow tires plenty on much more aggressive alignments, that's not the issue.
Because the traction mod reducing anti-squat loads the rears more progressively under power, you very well may find that it does help with your winter traction issues.

I definitely found that it greatly improved the ability to put down (stock) power in the wet and the little bit of snow/slush/ice we get around here in the winter.

I agree with DocWalt that your camber is most likely not the issue. It helps in the dry because it helps keep the tire from rolling over onto the sidewall when cornering hard with lots of lateral load / roll angle, but there's not enough of that going on to pull contact patch off of the tire tread in winter unless you're WAY over-driving for the structure of the tires (especially the softer sidewalls most winter tires have). The contact patch is the same size regardless, and -2.1 degrees in the rear isn't enough to pull a measurable amount of that inward off of the tire tread to the inside sidewalls to compromise traction.

FWIW, I'm on RCE SS1's (damping set as recommended for street use), lowered about 30mm front and rear, my rear camber and toe are pretty much identical to yours, and I also run Michelin X-Ice snows in the winter (though in 225/45R17 on the stock Sport Tech RS / Performance Pack 17x7.5's). As long as I'm reasonable with my right foot, no problems with traction, though the traction / stability control definitely works overtime on ice / slush. They're OK in the dry, but definitely squishier / squirmier than my same-sized Pirelli P Zero All-Seasons I run the rest of the year.
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