need some advise for my buddy's Supra MKIV.
took me for a spin in his single turbo auto Supra MKIV this afternoon and the rear wheels seem to wobble when boost kicks in, is this normal? currently running on 18x9.5 +35 all around, using 245/40 front and 265/40 rear setup. all shocks and rear anti-roll bar (comes with new bushes) recently replaced, 18" wheels are new with the correct centre cone installed... so wonder what could have gone wrong causing the rear to wobble? TRAC has been disabled (TRC light ON, O/D light flashing) by removing the connector and fuse. surprisingly, when going uphill, this wobbling problem seems absent or perhaps due to weight distribution? hope you guys could assist to sort out this problem quickly as the ride is pretty scary at the moment especially on uneven road or during wet days... thanks so much!