will they work?
Team Owner
Joined: Sep 2003
Posts: 25,393
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If the wheels were from a single car and 17/18 stagger it's generally assumed that a 1" spacer for the front and 1.25" for the rear but 1" would do.
Sizes - let's see what you're actually looking at.
Le Mans Master
Joined: Jun 2009
Posts: 6,528
Likes: 752
From: South Dakota
It depends on which wheel(s).
Yours had either 16"x 8.5"- 32mm or 16"x 9.5"- 38mm
The 2000 C5 base wheel you suggested is 18"x 9.5"- 65mm
So you will need spacers to run a full set of C5 base 18" wheels.
There is an interesting option for 18's though. It looks like the C6 Z06 has a 18"x 9.5"- 40mm front wheel. It looks like a full set of those front wheels should fit without spacers.
Good luck.
Yours had either 16"x 8.5"- 32mm or 16"x 9.5"- 38mm
The 2000 C5 base wheel you suggested is 18"x 9.5"- 65mm
So you will need spacers to run a full set of C5 base 18" wheels.
There is an interesting option for 18's though. It looks like the C6 Z06 has a 18"x 9.5"- 40mm front wheel. It looks like a full set of those front wheels should fit without spacers.
Good luck.
Le Mans Master
Joined: Jun 2009
Posts: 6,528
Likes: 752
From: South Dakota
Sorry perhaps I could have stated it better that it depends on which wheels he wants to use and what size adapter he may need. Either of the stock '87 wheels will need an adapter with the 18" base C5 wheels.
I posted the offsets for the stock '87 wheels because he may want to see the difference between his stock wheels and the proposed wheels. It will show him the amount of offset difference.
I posted the offsets for the stock '87 wheels because he may want to see the difference between his stock wheels and the proposed wheels. It will show him the amount of offset difference.
Last edited by QCVette; May 7, 2014 at 12:14 PM. Reason: Explained posting of offsets
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Team Owner
Joined: Sep 2003
Posts: 25,393
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The 9.5" on any year ZR-1 is a 56mm - doesn't matter the style - "ALL"! If they're 9.5 and 38mm then they're early wheels for '87 or earlier. They should be cast 38mm if they are. If they're not cast then the back-spacing is very close to 6.7", a straight edge and a tape measure should answer any questions. A 56mm 9.5" wheel the back-spacing" is closer to 7.4".
Last edited by WVZR-1; May 10, 2014 at 05:13 PM.