1990 ZR-1 factory wheel sizes and offsets ?

[John P.]

Hello,

I might buy a new set of wheels and tires for my '90 ZR-1. I want to make sure what the factory stock wheel sizes and offsets are.

Are these the factory stock wheel values ?

Front : 17" x 9.5" +56 mm offset

Rear : 17" x 11" +50 mm offset

I am considering a few combinations. Your feedback would be very much appreciated.

1) Chromed ZR-1 ('95 style) 17" wheels with stock wheel and tire sizes.

2) Chromed Z06 Motorsport 18"x 11'' rear - 315/35/18 ?? tire
18 x 9.5" front - 275/35/18

3) Chromed Z06 Motorsport 19"x12 rear - 335/30/19 tire
18"x10" front - 275/35/18 tire

4) Your favorite tire and wheel combo for a ZR-1 ??

I plan to save the stock '90 ZR-1 rims for obvious reasons.
Thanks very much for your help.

 

[jhong321]

the front offset is correct but the rear off set for a zr1 is 36.mm

 

[tomtom72]

Just my two cents

Hi, The offset #'s given by jhong321 are correct. Be careful because alot of what you might see is for camaro's & firebird's. I have a phone number of a company that got me the correct offsets at a very competitive price. If you would like it please PM me & I'll give it. For your reference there is a "suspension" chart on the ZR-1netregistry that has all of that type of info. I believe it is filed under "miscellaneous" in the menues.

Reason I didn't put the vendor's name & # here is I don't know if that is proper forum behavior? Good luck in your wheel search. OBTW I put the five spoke A-molds from the 93-95(?) ZR-1's on my 90, got them in chrome. Personally I like the 90 saw blades best but couldn't find any when I was looking, both price and availibility wise. I wanted to keep it to a thousand dollar budget. Tom