C6 wheels on 91 formula
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From: Greenville
Car: 1991 formula
Engine: 350 tbi
Transmission: T-5
Axle/Gears: 308 posi
C6 wheels on 91 formula
just bought a set of 18/19 C6 corvette rims for my car and 2" inch spacers so they would fit...turns out the 19s are too big for the rear so i bolted the other 18 on in the rear, let me know what you think. note:the suspension isnt settled in yet. i have the rims for sale or trade if anyone is interested also would be interested in trading the two 19s for two more 18s
Joined: Sep 2003
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From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: C6 wheels on 91 formula
wow that car sits HIGH. settled in yet or not i'm not sure its gonna drop that much 
either way those rims look great on these cars
Oh and i have seen 19's on two other formulas no problem with no fitting issues. I have the 19's on my camaro no problems. Not sure what you encountered, could you explain abit more? the 19's on these cars need 2.5" spacers on the rear.
18's all around look great tho

either way those rims look great on these cars
Oh and i have seen 19's on two other formulas no problem with no fitting issues. I have the 19's on my camaro no problems. Not sure what you encountered, could you explain abit more? the 19's on these cars need 2.5" spacers on the rear.
18's all around look great tho
Joined: Sep 2003
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From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: C6 wheels on 91 formula
so they would hit the inside wheel well correct? 2" will not be enough to space them out far enough to fit on a 3rd gen rear.
I have a wider 4th gen rear and still needed .625" spacers
I have a wider 4th gen rear and still needed .625" spacers
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From: Greenville
Car: 1991 formula
Engine: 350 tbi
Transmission: T-5
Axle/Gears: 308 posi
Re: C6 wheels on 91 formula
thats correct if i can find some cheap wheels spacers that are bigger i will run them otherwise i will sell/trade them becasue im sick of my formulas they are just too outdated wouldnt mind some 16" camaro rims tho. did you lower your car at all?
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From: CPT (Southern Cali)
Car: 09 GSXR/88 iroc/91 RS B4C
Engine: 600cc/l5.7/5.7
Transmission: 6 speed/TH 350/auto
Axle/Gears: 45tooth rear?/3.23/3.42
Re: C6 wheels on 91 formula
i have 19's in the rear with 2" spacers didn't exactly fit i had to massage the inner fender with a hammer dont need much good luck
ps. needs to be lowered
ps. needs to be lowered
Last edited by godreject; Dec 22, 2008 at 10:27 PM. Reason: pic
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Joined: Sep 2003
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From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: C6 wheels on 91 formula
my car is lowered alittle. stock 4th gen rear being almost 2" wider than thirdgen still wasnt enough to fit the 295 19's. needed a slip on spacer
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From: Columbus, OH, USA
Car: '91 Z28, '13 Civic EX-L
Engine: 355 LT1, 1.8 I4
Transmission: T56, 5spd auto
Axle/Gears: 10 bolt 3.42(as long as no breaky)
Re: C6 wheels on 91 formula
Those look great. I plan on the same, only black.
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: C6 wheels on 91 formula
Since you asked for opinions.....Me no likey.
I don't like the vette wheels even on Vettes. Or rather...The FWD-style build of them. RWD cars should have wheels with a lp around the spokes.
As an example, these. The "spokes" aren't flush wuth the outer edge......
I don't like the vette wheels even on Vettes. Or rather...The FWD-style build of them. RWD cars should have wheels with a lp around the spokes.
As an example, these. The "spokes" aren't flush wuth the outer edge......
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From: Greenville
Car: 1991 formula
Engine: 350 tbi
Transmission: T-5
Axle/Gears: 308 posi
Re: C6 wheels on 91 formula
i understand what you mean i love the dished rims like torq thrusts but i am a high school student and i got a good deal on them so thats all i can afford
Re: C6 wheels on 91 formula
ANYWAY..
those wheels look awesome on the car, take more pictures!!! please!
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From: Antigo, WI
Car: 86 Camaro
Engine: 79 350 carbed
Transmission: TH-350
Axle/Gears: 3.73 posi
Re: C6 wheels on 91 formula
I managed to have 2" spacers all the way around on a stock rear. Plus my car is lowered.

I like your formula but I really don't care for the look of these big wheels unless you are going to fill up the gap. It is really nice to see someone with silver painted wheels for once. I have had people ask me to strip and polish them but I say no way. Painted is so much easier to take care of and I like them better.

I like your formula but I really don't care for the look of these big wheels unless you are going to fill up the gap. It is really nice to see someone with silver painted wheels for once. I have had people ask me to strip and polish them but I say no way. Painted is so much easier to take care of and I like them better.
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From: Greenville
Car: 1991 formula
Engine: 350 tbi
Transmission: T-5
Axle/Gears: 308 posi
Re: C6 wheels on 91 formula
thanks guys i will probably lower my car once i get enough money to but for now being in high school im still paying my car off im not sure of the tire size i have these rims listed in the classifeds and i listed the sizes there. any pictures of modified inner fenderwells to fit 19" rims in the back would be appreciated
Joined: Sep 2003
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From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: C6 wheels on 91 formula
dude have you once even lifted your 3rd gen with a jack? if you have, then you would realize the suspension sits cocked in a negative camber position until the wheels roll to allow it to level out. i can imagine this being even worse if you lifted just one side of the car
Just my opinion, that car sits high and needs to be lowered to make those rims look even better
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From: Antigo, WI
Car: 86 Camaro
Engine: 79 350 carbed
Transmission: TH-350
Axle/Gears: 3.73 posi
Re: C6 wheels on 91 formula
thanks guys i will probably lower my car once i get enough money to but for now being in high school im still paying my car off im not sure of the tire size i have these rims listed in the classifeds and i listed the sizes there. any pictures of modified inner fenderwells to fit 19" rims in the back would be appreciated
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From: w. boylston mass
Car: 91 formula
Engine: 305
Transmission: t5
Re: C6 wheels on 91 formula

i got a 4th gen rear so i didnt have any spacers in the rear..... i have 2.25 up front i believe with C5 Z06 brakes
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From: Greenville
Car: 1991 formula
Engine: 350 tbi
Transmission: T-5
Axle/Gears: 308 posi
Re: C6 wheels on 91 formula
good news guys i went to my freinds house where im storing the car today and the suspension has settled more and it doesnt look like a monster truck anymore lol, still plan on lowering it sometime in the future but for now i am just going to leave it
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From: Tacoma, Wa
Car: '91 TA vert
Engine: turboLSx
Transmission: T56
Axle/Gears: 3.23
Re: C6 wheels on 91 formula
I like the look of the c6s on your bird. I have 19s on a 4thgen axle on my 'vert and still needed a spacer. But once I had the spacer all I had to do was roll the fenderlip.
So many people are getting the c6s I think I might need new wheels!
Not to nitpick but on the front you'd get positive camber from lifting the front end off the ground.
So many people are getting the c6s I think I might need new wheels!
dude have you once even lifted your 3rd gen with a jack? if you have, then you would realize the suspension sits cocked in a negative camber position until the wheels roll to allow it to level out. i can imagine this being even worse if you lifted just one side of the car
ANYWAY..
those wheels look awesome on the car, take more pictures!!! please!
ANYWAY..
those wheels look awesome on the car, take more pictures!!! please!
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From: Greenville
Car: 1991 formula
Engine: 350 tbi
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Axle/Gears: 308 posi
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From: Bertram (outside Austin), TX
Car: 87 GTA
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From: Greenville
Car: 1991 formula
Engine: 350 tbi
Transmission: T-5
Axle/Gears: 308 posi
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From: Dubai
Car: 1991
Engine: 350
Transmission: 700
Axle/Gears: 3.23
Re: C6 wheels on 91 formula
thanks guys i will probably lower my car once i get enough money to but for now being in high school im still paying my car off im not sure of the tire size i have these rims listed in the classifeds and i listed the sizes there. any pictures of modified inner fenderwells to fit 19" rims in the back would be appreciated
P.S. Love the wheels.
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From: Antigo, WI
Car: 86 Camaro
Engine: 79 350 carbed
Transmission: TH-350
Axle/Gears: 3.73 posi
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From: Plant City, FL
Car: 1991 Firebird
Engine: 3.1L V6
Re: C6 wheels on 91 formula
I know exactly who you bought the car from. Those c6 wheels look much better than the chrome c5 z06 wheels he had on there before. Also leave them the color they are, they go nicely with the color of the decals.
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From: Greenville
Car: 1991 formula
Engine: 350 tbi
Transmission: T-5
Axle/Gears: 308 posi
Re: C6 wheels on 91 formula
i bought the car from pontiackid i helped him do alot of restoration work on the car i like both the z06 and the c6 rims
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From: El Paso, Texas
Car: 1987 IROC Z
Engine: 350 TPI L98 block
Transmission: 700R4
Re: C6 wheels on 91 formula
It looks like it sits really high, but I think its because he does not have ground fx . Contact Andris Skulte www.skulte.com for a custom hub rather than spacers. I got some from him for my C5 wagon wheels, and had no problems with the rears rubbin (the fronts were a bit big though) . He is a member on here, I am sure he has the same rims on his IROC, so you should ask him about it.
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From: Greenville
Car: 1991 formula
Engine: 350 tbi
Transmission: T-5
Axle/Gears: 308 posi
Re: C6 wheels on 91 formula
yes all the ground fx were taken of off the car i think it looks cleaner with the 91 nose
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