You might not be a fan but.. put an LTW wing on the car. Anything over 60mph my car used to wander a little during a pull or with some wind. Now with the LTW it goes straight as an arrow all the way up to 140+. This past spring I had taken it off and put it back on within a week because it didn't feel right anymore lol. My car has all new solid bushings and a close to factory spec alignment. No play or worn parts anywhere.
97 Turbo 3.2L M3 - Cutring / ARP - RSI Top Mount - Gt4088r - ID1300 - Tial WG - 22RPD Tuned - 93 Octane - 3.5" Stainless
Subscribed because I run the same tires with similar power levels. Get yourself a set of toe plates and a laser-level and you can do your own alignments/adjustments (They're like $50).
What pressure are you running the radials at, and on what width wheel? I'm running them on an 8" wide wheel, 25psi. Haven't noticed any particular instability, but if I'm honest the few pulls I did on them I was just happy it was hooking(ish) and not spinning at 100mph+ like my 3 year old plastic 255 width tires
Also, rear suspension - spring rate / shock / sway bar details? Is the rear end staying planted? Can you tell if the instability is coming from the suspension or the tire?
I am super interested in this stuff, going to try to work on a ton of power management stuff this upcoming spring. I know little to nothing about most of it, but I'm going to try a whole bunch of stuff and see what works.
Last edited by sdobart; 01-03-2019 at 01:40 AM.
96 M3 | Forged LSx | Twin S366 | Injector Dynamics | E85 | AEM Infinity
90 Schwarz 325i
IG : sdobart
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