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Old 07-17-2020, 08:13 PM   #22
pher.da.rico
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Join Date: Feb 2019
Drives: 2018 Premium Black silica BRZ
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Quote:
Originally Posted by churchx View Post
90mph turn on public roads and any car take this turn? I might be wrong, but aren't speed limits in US lower then that?
Traction Control off - better don't do that on public roads. During daily driving/cruising attention level is way way lower then concentration on track, and there can be many uncontrollable & unpredictable variables. Suggest to keep at least vsc sport as minimum.
If you change car rake, it will change also grip balance more to oversteer
If you needed to change tire size to reduce rubbing, imho that sounds like your car has many handling issues from chosen tire/wheel sizing and overlowering. Some unwise mods in that area need extra mods to fix introduced issues, or reduce extent of mods/changes that made car worse.
If you select tire sizing way off from stock, then it's always worth to do in more educated fashion to know what one is doing, then going by hunch of what "subjectively seemingly looks cooler" and possibly introduce handling issues.
How high you may value mentioned alignment shop says nothing to us. Post actual alignment values to see for abnormalities in those. The reason why it's always worth to ask for alignment printout - to ensure QA of their work and for others to enable to give actual useful advises instead of playing spanish inquisition and guesswork games.
If car is oversteering, driving inputs that add even more transfer mass & grip to front, reducting those from rear, will make it even worse, so one shouldn't brake or lift-off mid turn, just judge reasonable entry speed and balance neutral grip with partial throttle mid turn. Or rely on nannies, that you have turned off due overconfidence.

In my eyes result was caused by several factors, them all enhancing each other issues/impact to handling. As to which ones are better to fix .. not enough info in OP.

It’s not a turn. Excuse me not knowing the exact term. But it wasn’t a straight away on the freeway. More like a curve that requires you turning the wheel slightly to the right.
Before I ran the 245 40 18 I could hit these roads at 90 with 100% confidence. But while on the new tire setup in the back the car felt like a boat rocking left to right. As if it wasn’t responding to me trying to keep it centered while in my lane.


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