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Porsche Crest wheels

How wide can we go with rear 928 wheels and tires on our 1980 928s?


What other Porsche wheels would fit our model 928?
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Old 12-01-2010, 04:46 PM
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I know 11's are no problem. Here is an 11 x 18 Moda Wheel on 78 (same hub) with at least an inch to spare (taken this weekend). Those early rears are tucked in.
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Old 12-01-2010, 06:43 PM
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The fitment will be the same on all 928's, until the GTS and they can go a bit wider on the rear with the flared fender. You can run a 275 on the rear and 255 on the front no problem. The problem is it offset's at maximum fitment. No other model rims will really works well on the front. The boxster comes close. If you go below a 55mm offset on the front it will start to stick out of the body work like the pic above. It looks like 153 is using a 911 set up. My car is lowered so on bumps and turns there would be fender to tire contact. The pic is 245/35/19 and 275/30/19 The offset up front wheel is 19x 8.5 et 55 and think the rear is19x 10et45
Old 12-02-2010, 03:06 AM
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So what other Porsche wheels fit our 928?
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Old 12-03-2010, 04:12 AM
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Quote:
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I know 11's are no problem. Here is an 11 x 18 Moda Wheel on 78 (same hub) with at least an inch to spare (taken this weekend). Those early rears are tucked in.
That width looks byotchen. What's with all the Painters Masking Tape? You building a Track Car?
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Old 12-03-2010, 05:14 AM
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That width looks byotchen. What's with all the Painters Masking Tape? You building a Track Car?
The tape is left over from covering the quarter windows with plastic and yes, we are building a wide-body 928 track car a la....

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Old 12-03-2010, 06:30 AM
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Old 12-03-2010, 06:49 AM
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So what other Porsche wheels fit our 928?
technically none, properly. All the Porsche wheels (5 x 130 bolt pattern) will bolt on but where the tires are in relation to the body will vary greatly. the 65mm offsett is pretty specific to the 928. You can go down to a 55et. on the front. That will incorperate some Boxter fitments. The whole range of wheels that fit the boxster may not fit the 928 but the ones 55et and up will. (all Dependant on rim width but in general) I'm talking on a stock body. The wide-body is completely different and I have no idea. Though it will look pretty cool.
Old 12-03-2010, 07:31 AM
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The tape is left over from covering the quarter windows with plastic and yes, we are building a wide-body 928 track car a la....

My friends Josef West and Chris Barrington - two 944 buddies.
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Old 12-03-2010, 11:11 AM
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Coolio. I was also wondering what ever happened to BB500 too. Anyways, sorry OP for going OT on your thread.
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Old 12-03-2010, 11:27 AM
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The 5 spoke Carrera III wheel fits GREAT and has excellent 928 offsets. The CIII Lightweight well less so as it has a front offset of ET50...they still work and are my fav P-car wheels. The turbo twists seem to fit rather well...see them on a lot of 928's. As noted above the Boxster twist wheels fit fine. The stock front tire is way to small though and at 7" wide on the front you don't gain much where you need it. A wider front wheel that has a good offset for wider tires is the way to go on these cars really.
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Old 12-03-2010, 11:31 AM
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8.5 x 55et is the farthest out you can go, as the wheel gets narrower the offset can decrease too. I agree, the Carrera wheels are pretty sharp. I bought wheels last year and it took me a month to figure out the correct fitment ratio.
Old 12-03-2010, 11:44 AM
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