ET65 wheels
07-12-2010, 03:24 AM
#2
I cant think of any.
But why do You want 7" rims ?
The stock spec is 7½" and 8" is even better. The 16" Club Sport rims are 8" ET60 and the car is still somewhat understeering.
I would go for the 17" Cup II 8" ET70 or better yet 9" ET70. You could throw in a spacer of 5 - 10 mm.
Ragnar
But why do You want 7" rims ?
The stock spec is 7½" and 8" is even better. The 16" Club Sport rims are 8" ET60 and the car is still somewhat understeering.
I would go for the 17" Cup II 8" ET70 or better yet 9" ET70. You could throw in a spacer of 5 - 10 mm.
Ragnar
07-12-2010, 10:47 AM
#3
Rennlist Member
I just put Cup 2's on 17 x 7 et 55 and 17 x 9 et 55 with 225/45 front and 255/40 rear. Fit nice, no tramlining. The 7" is a bit narrow for the 225/45 but still within acceptable limits. These rims come on mid 90's 993's.
07-12-2010, 08:44 PM
#4
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The original rims on my '89 S4 are 7" front, 8" rear, and I think the corresponding tire width looks and performs well, but 16" tires are getting hard to find in these widths. When I bought the car it had non-stock wheels with ET of around 50 on the front and the steering response was not pleasant, so I replaced them with stock ET65 wheels and the handling is now excellent. So, I'm trying to retain the good steering response in a wheel size that allows a better tire selection.
07-12-2010, 10:57 PM
#5
Nordschleife Master
Chazz, the suspension geometry didn't change between all model years from 87-95.
Thus you can use any of the stock wheels from 928's of any of those years:
Clubsports 16x8 ET60, 16x9 ET60 (89GT, SE, Clubsport)
Design 90's 16x7.5 ET65, 16x9 ET53 (90/91 GT)
Cup I's 17x7.5 ET65, 17x9 ET55 (92/93 GTS)
Cup II's 17x7.5ET65, 17x9 ET55 (94/95 GTS)
Note also that the stock wheels for the '89 GT were 8" wide ET60 fronts - thus ET60 was deemed acceptable by the 928 engineers on an 8" wide front for bump-steer and srub-radius impact.
I agree that there is a large difference between seemingly small offset changes - the ET55 7" Boxster fronts result in a very different ride to ET65 7.5" Cup II fronts when both are running very similar rubber.
Thus you can use any of the stock wheels from 928's of any of those years:
Clubsports 16x8 ET60, 16x9 ET60 (89GT, SE, Clubsport)
Design 90's 16x7.5 ET65, 16x9 ET53 (90/91 GT)
Cup I's 17x7.5 ET65, 17x9 ET55 (92/93 GTS)
Cup II's 17x7.5ET65, 17x9 ET55 (94/95 GTS)
Note also that the stock wheels for the '89 GT were 8" wide ET60 fronts - thus ET60 was deemed acceptable by the 928 engineers on an 8" wide front for bump-steer and srub-radius impact.
I agree that there is a large difference between seemingly small offset changes - the ET55 7" Boxster fronts result in a very different ride to ET65 7.5" Cup II fronts when both are running very similar rubber.
