Quote:
Originally Posted by Faster993
Bumping this thread for some help and advice.
My 1990 C2 is currently running on BBS wheels 8” wide up front (not 8.5”) and 10” rear. The offsets are 49 front and rear. The car is used primarily for the track. I’ve been running on 265’s in back, and 225’s up front. The car is nicely balanced, but it pushes just a bit up front.
I was thinking about increasing to 285/30 in the rear, and 245/40 up front. The 285 is doable with 10mm spacers, but there’s no way I can fit 245’s up front without new front wheels with 40ET offset. My front end has 993 longitudes and BBI wheel carriers, so that might explain why it wants 40 ET offset. Im not planning on replacing the wheels just yet.
So, the question is does it make sense to move to 285/30 in back and 235/40 up front? Will this create more push up front? I’m willing to experiment for a season to give it a try, but welcome any feedback from the Forum, and of course the experts like Bill V.
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Lots of stuff that doesn't make sense here
993 long. on a 964 will push the A-arm out 12.5mm, Hopefully some additional compensation is done at the shock top w/ the hats to get reasonable camber
it's common for 993 to have 964 to pull the wheel back into the body to allow a wider front wheel, 993 Cup and RSR did just that, don't see the point of 993 long on a 964 unless you use turbo flairs and then don't want to go to the outer mounting holes
an 8ET50 is a normal 964 front fitment but if the wheel has been moved out by over 10mm the ET should also need adjustment back in board to ~59
not sure that a 285 will fit in the back, widest I've ever seen fitted is 275 and that was extremely tight on both sides that is w/ a 10 ET45-50
if the car is pushing one remedy is a wider front 245/35 x18 on an 8.5 ET 40-48 is common w/ the 275/35 rear
be very careful of a 245/40 front it is just way too tall for a comfortable fit