Thanks

 

How big are your stock tires? Of there 245's you can put on 255's for sure, I don't know how much bigger you can go after that.

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• Red '91 Z-28 350
• 700-R4 Trans
• T-tops
• no major power
  gaining mods, K&N
  Filter, Flowmaster
  exhaust -series 80-,
  exhaust cut-outs
• Best E.T. 15.0@93mph, Will improve that 1/4 mile time this spring.
• HardlinePerformance

 

I know Andris had 275/40R17 tires on 17X9.5" ZR1 wheels up front, and 315/35R17 tires on 17X11' ZR1 wheels in back. They just about line up with the edges of the fenders and look really cool.

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Greg Westphal
'87 IROC 305TPI/A4

 

geez greg, no wonder you can hook with street tires
i ran 17x9's with 275/40's all the way around for street and autox last year. they fit great. only rub a little bit at full lock.

lata
tim

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91 Camaro RS-LO3,Auto.
14.209@95.46mph
Best 60' 1.917
Check Out The East Coast F-Body Nationals Home Page
www.geocities.com/njspeeder

My MAFB.ORG Home Page
www.mycar.net/mafb/registry/detail.cfm?id=299

DSI Racing Home Page
www.geocities.com/foff667

 

Would you be able to fit 295's on the 16 x 8 rim? just for the rear

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Pat Hirsz
www.iit.edu/~hirspat/MyPage2.htm
88 305TBI
Mods:Hooker Aerochamber 3" exhaust, gutted kitty, March pullies, no smog, 180 thermo,
14x4 K&N, 3.42 gears(open), Ultimate TBI Mods,AFPR,MSD(ignition,coil&wires),Edelbrock TBI Manifold, 195ltr/hr fuel pump,
Eibach springs with KYB's all around,
Harwood cowl hood, Z-28 wing, fresh paint(black)
120,000 miles, 5spd, T-tops,slp headers on its way

92 RS, 305TBI, auto, 3.08 gears, 180 thermo, glasspack (no muffler)

 

We run 16X12's on the Racecar.
But then we also have a 'wide body kit' on it


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Redbird
Bayou Motorsports
87 Firebird-Daily Driver/Autocrosser
84 Z28-Full bore Autocross car
Delta Region SCCA
#00 C Prepared

 

Tim, Andris is the one with the big wheels/tires. I have 255/50ZR16's on stock IROC rims, but I was still able to pull 1.9x 60-foot times on nearly bald BF Goodrich Comp T/A ZR's.

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Greg Westphal
'87 IROC 305TPI/A4

 

I've got 27.5 x 10.5" McCrearys on 15 x 10" rims. They stick out about an inch and a half, but they work. Hook like a bastard too.

 

17x9.5 with a 5-1/2 backspacing will fit all the way around with a 275/40-R17 tire. 17x11 wheels will not quite fit. To use them you will need to cut and refit part of the rear fender well and eliminate the emergency brake cable. Someone said a 295/50-R16 would fit. No it won't. I had some on my El Camino on a 16x9.5 rim with 5-1/2 backspacing and fit them on the Firebird for fun. Too wide of a tire and too tall.

 

There's a guy on here with a maroon RS running 17X12's on all four corners, if I remember correctly. Do a search for SEC, that's the kind of rim they are.

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Matt86Z
~Check out my Thirdgen~
...This Ain't No Speedway!...

 

17x12 only on the back with 6.5 of BS and 335s. search in the appearance section for SEC

 

With my stock 15" rims I have 275/60's on the back. and there is very little clearance.

 

can i run BFG 235 60 15 T/As up front and 12.5x28x15 M/T ET STREETS or 10.5x26x15 M/T Sprotsmens on the back with stock 15x7 Z28 rims with out rubing. Thanx

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when the green flag drops the bull$hit stops

Curent: 350,performer RPM intake ,650dp, 700r4, headers, 3inch exhast
Spring 01: 406, Comp 282 solid cam, 2400 stall converter, every thing else the same.

R.I.P #3