will stock 17" 993 cup wheels fit 964?
03-29-2009, 04:49 PM
#1
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Thread Starter
will stock 17" 993 cup wheels fit 964?
do stock 17" 993 cup wheels fit the 964?
any spacers or other mods needed?
thanks in advance
wm
any spacers or other mods needed?
thanks in advance
wm
03-29-2009, 05:03 PM
#2
Three Wheelin'
Yep, fit no problem. no spacers needed. Porsche says to fit larger wheels you need to do this http://pcarworkshop.com/images/7/70/...0691geolab.pdf tsb. I am just now doing it after 3 years with the 993 cups, and they took a little of the paint off of the inner fender, but only at full lock. Good luck.
03-29-2009, 08:29 PM
#6
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I have 7" and 9", both ET55, and opted for a 5mm spacer on the rear and longer studs. Not sure if it's really needed, but with 255s I could not slip a finger between the sidewall and the trailing arm. Considering I occasionally track the car I felt it was a little insurance. I have not seen a need for the steering rack stops using 205s.
03-29-2009, 10:53 PM
#7
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03-30-2009, 04:11 AM
#10
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looks great!!!...thanks for the feedback!
03-30-2009, 01:08 PM
#11
Rennlist Member
Pay attention to how close the tire comes to the oil line in the right rear wheel well. I have 255/40/17
tires on 8" Turbo twists, with 55 ET. With my negative camber, tire came 1/4" from the oil line. I added 5MM spacers,and now have close to 1/2".
tires on 8" Turbo twists, with 55 ET. With my negative camber, tire came 1/4" from the oil line. I added 5MM spacers,and now have close to 1/2".
03-30-2009, 02:15 PM
#12
Nordschleife Master
I'm sure I have seen 'stock 993 cup wheels' for sale where the 9J rears have an ET of 70. 
By my calculations these would need 15 mm spacers to keep a good clearance from the inside of the wheel arch.
By my calculations these would need 15 mm spacers to keep a good clearance from the inside of the wheel arch.
03-30-2009, 05:25 PM
#14
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I run 7 & 9" Cup IIs with 225x45 and 255x40 rubber. both front and rear have 55ET....I run 15mm spacers on the rear
Last edited by DanielT; 04-03-2009 at 05:44 PM.
03-31-2009, 11:41 AM
#15
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The key here is to definitely check the offsets.
I have a genuine set of 993 cup II wheels, 7" fronts & 8" rears and the rear offset is 30mm.
These will only fit a widebodied car unless you put very skinny rear tyres on (225 IIRC).
With 245s on the tyre protrudes outside of the rear wheel arch.
Spacers would of course only make the matter worse.
I have a genuine set of 993 cup II wheels, 7" fronts & 8" rears and the rear offset is 30mm.
These will only fit a widebodied car unless you put very skinny rear tyres on (225 IIRC).
With 245s on the tyre protrudes outside of the rear wheel arch.
Spacers would of course only make the matter worse.