What wheels will fit my car?
06-17-2003 | 12:25 AM
#1
Thread Starter
Instructor
Joined: Sep 2002
Posts: 131
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From: Sardis B.C. Canada
What wheels will fit my car?
I am currently running C2 rims with tires sized 225/45-17 and 245/40-17 on a 1985 928.
I am looking to purchase a 2nd set of rims for track use. Other than the obvious Porsche take offs, what will work eg: diameter and offsets and
also what is the lug spacing?
There is a nice set of BBS 18x8" with 32mm offset and dual 5x100 and 5x112 spacing for sale locally
Darrin
1985 928s 5-speed
I am looking to purchase a 2nd set of rims for track use. Other than the obvious Porsche take offs, what will work eg: diameter and offsets and
also what is the lug spacing?
There is a nice set of BBS 18x8" with 32mm offset and dual 5x100 and 5x112 spacing for sale locally
Darrin
1985 928s 5-speed
06-17-2003 | 08:38 AM
#2
Three Wheelin'
Joined: Mar 2003
Posts: 1,286
Likes: 1
From: New Berlin
</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">..what will work eg: diameter and offsets</font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">Since your question is a little vague, do a search on the word 'offset', and you'll find pretty much everything you'll need to know, and take it from there. There has been quite a bit of discussion lately on this topic, and from those discussions you can get a good idea of what will 'work'. Definitely worth reading.
The lug spacing is 5 x 130.
In the meantime, don't bother with the 32mm rims as they are not even close.
Here's the link to the latest discussion:
<a href="http://forums.rennlist.com/forums/ultimatebb.php?ubb=get_topic;f=14;t=006844" target="_blank">http://forums.rennlist.com/forums/ultimatebb.php?ubb=get_topic;f=14;t=006844</a>
The lug spacing is 5 x 130.
In the meantime, don't bother with the 32mm rims as they are not even close.
Here's the link to the latest discussion:
<a href="http://forums.rennlist.com/forums/ultimatebb.php?ubb=get_topic;f=14;t=006844" target="_blank">http://forums.rennlist.com/forums/ultimatebb.php?ubb=get_topic;f=14;t=006844</a>
06-17-2003 | 09:52 AM
#3
Burning Brakes
Joined: Apr 2002
Posts: 906
Likes: 1
From: SW Colorado
It is a BIG expense to do it correctly. I think the least expensive set of properly offset, wider than stock wheels, runs about $2000 without tires. Otherwise you are relegated to running a 225 section front tire. With the correct offsets you can run a 255 front on 17's or a 265 front on 18's.
I used to run 225 frt and 245 rear on my 951 at the track. They worked great but your 928 wieghs about 500lbs more. The big tires are worth it IMO.
Your best bet is to check with the "big three" 928 suppliers. They all have experience with proper fittiments. Good Luck
I used to run 225 frt and 245 rear on my 951 at the track. They worked great but your 928 wieghs about 500lbs more. The big tires are worth it IMO.
Your best bet is to check with the "big three" 928 suppliers. They all have experience with proper fittiments. Good Luck
06-17-2003 | 02:20 PM
#5
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Posts: 628
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From: Pacifica, CA--Land of Fog
The VERY short answer, is check the thread you were referred to and read the Kim Crumb post. You want to stay with his rule of thumb:
Front offsets in the mid to high 60's and rear offests in the mid to high 50's.
Be sure to check 928GT for the original specs on a GTS--65MM and 55MM is how they came.
Front offsets in the mid to high 60's and rear offests in the mid to high 50's.
Be sure to check 928GT for the original specs on a GTS--65MM and 55MM is how they came.