Not sure if this is the right forum...

Anywhoo I might buy some of the 16" SS (ala ZR1) style wheels. I have 15" Z28 wheels on now. I believe I need wheels spacers.
For front and back? what size? thanks

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88 TBI IROC- mods- 5500 rpm redline tach, 240 KM/H speedo,
L69 air cleaner installed! Yeh my Gf's Grand Am GT is still faster

 

You need 2.25" in the front and 1.5" in the rear I think. Go to skulte.com that is where I got mine very nice pieces and great to deal with.

 

I used 1.75 inch spacers on the front, and 1.25 spacers on the back for my 17X9 Camaro SS wheels with 275/40 tires.



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Rick89IROC
Black 89 IROC-Z Convertible 305 TPI
13.95 @ 102.18
DGGM 95 Impala SS
13.78 @ 98.28

 

Beautiful car Rick, very sharp.

 

I used 2.25 on the front and 1.5 on the rear. Car is in sig.

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91 Z28
Best Time Slip:
60' - 2.098
1/8 - 9.137 , MPH - 76.21
1/4 - 14.213, MPH - 97.55

Performace Mods: SLP Exhaust

Appearance Mods: SS wheels, 2.5" Cowl Hood... New 100% Black paint job, Clear Side Marker Lights

Stereo: Alpine 855, Infinity Kappas all around, Infinity 150x2 amp (POS), Infinity Perfect 10 in hatch.

Pictures at http://albums.photopoint.com/j/Album...a=13605035&f=0 Here
ICQ: 1437212
AOL: normalmatt9

 

Sweet cars guys....<drool>
Any concenus on what I'm better off with?
I guess closest to stock would be best.

1.75fr 1.25 rear or 2.25fr 1.5 rear

thanks

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88 TBI IROC- mods- 5500 rpm redline tach, 240 KM/H speedo,
L69 air cleaner installed! Yeh my Gf's Grand Am GT is still faster

 

mine do not stick out any worse than stock. Not sure what to tell you. Bigger in the front, less you have to worry about the tire hitting the fenderwell.

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91 Z28
Best Time Slip:
60' - 2.098
1/8 - 9.137 , MPH - 76.21
1/4 - 14.213, MPH - 97.55

Performace Mods: SLP Exhaust

Appearance Mods: SS wheels, 2.5" Cowl Hood... New 100% Black paint job, Clear Side Marker Lights

Stereo: Alpine 855, Infinity Kappas all around, Infinity 150x2 amp (POS), Infinity Perfect 10 in hatch.

Pictures at http://albums.photopoint.com/j/Album...a=13605035&f=0 Here
ICQ: 1437212
AOL: normalmatt9

 

In the rear you have alot more room to work with, so 1.25 or 1.5 will work just fine. Since my IROC is lowered I wanted to move the wheels as far inboard as I could without hitting anything. The end link would be the first thing you would hit on the inside, and I have a tenth of an inch clearance with the 1.75 front spacer.

 

Thanks much for the info!

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88 TBI IROC- mods- 5500 rpm redline tach, 240 KM/H speedo,
L69 air cleaner installed! Yeh my Gf's Grand Am GT is still faster

 

I just got a set of 17x9.5 ZR1 rims for my car and they are the 56mm offset and have a 7.4 inch backspacing. What size adapters should i use on my Z28? Where have you guys been getting your adapters at. I have seen them in vette books and truck books for alot less then what the skulty place has them for, but i dont know if they are the same thing. Thanks

 

Ben,

I got my adapters at Mc Motor sports.

www.accessories-plus.com/html/prices3.html

I would guess that you need 2 inch in the front and 1.75 inch in the rear. This is just a guess on my part, based on 7.4 inch back spacing.

 

What is the bolt spacing on our cars too, that is kinda important. I think they are the same as the new rims but i better make sure!

 

Bolt spacing is 4.75 inches, the same on 3rd and 4th Gen F-bodies.

[This message has been edited by Rick89IROC (edited August 28, 2001).]

 

nice ride to the guy with the 91 z and the chrome ss rims i think its ionsz28 my new wall paper...
Shawn