Custom wheels for racing.
Thread Starter
Instructor
Joined: Oct 2005
Posts: 140
Likes: 0
Custom wheels for racing.
I been pullin my hair out while searching for a new set of wheels,
First I got the Center line convo pro's 15x10 5" offset, they look great, but the offset wasnt right they'r goin too far in.
Than I just went and got a pair of MT's
They had the right offset, but when I tried to put them on the rear wheel center is so deep that it wont clear the brakes.
Anyone make custom wheels, that could be used for drag racing?
Im lookin for
15x10" 4.5" offset rear
15x7 3 3/8 offset front
Im trying to fit 15x10 4.5" offset on the rear with MT's streets 28x13.5x15
Anyone know what wheels are these, I looked on the back and it says US Indy Mag, tried searching for them but no luck.
First I got the Center line convo pro's 15x10 5" offset, they look great, but the offset wasnt right they'r goin too far in.
Than I just went and got a pair of MT's
They had the right offset, but when I tried to put them on the rear wheel center is so deep that it wont clear the brakes.
Anyone make custom wheels, that could be used for drag racing?
Im lookin for
15x10" 4.5" offset rear
15x7 3 3/8 offset front
Im trying to fit 15x10 4.5" offset on the rear with MT's streets 28x13.5x15
Anyone know what wheels are these, I looked on the back and it says US Indy Mag, tried searching for them but no luck.
Racer
Joined: Aug 2004
Posts: 354
Likes: 6
From: Winston Salem NC
I just put 16x10s on mine and had to use a 1/2" spacer so the calipers wouldn't hit, that also made me have to put in longer studs.
Wheels can be a PITA
Those look like the old E-T Mags.
Try looking at www.roadsters.com/wheels
Wheels can be a PITA
Those look like the old E-T Mags.
Try looking at www.roadsters.com/wheels
Thread Starter
Instructor
Joined: Oct 2005
Posts: 140
Likes: 0
Originally Posted by big_G
I used these with 4 in. backspace. Have 26x11.5 E.T Streets...13.5 may hit all kinds of stuff...
I have "toms differentials" trailing arms with a shorter spring, which allowes an 1 1/2" more space inside on each side.
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
The best thing you can do to clear the brakes is a spacer. Years ago I got some Weld wheel drag lights and the ridges on the calipers were touching. I thought about grinding the caliper casting when friend said just go for the 1/4 inch spacer.
Now I have bigger studs and other things, but it got me through back then.
Good luck with your racing!
I forgot to say nice looking lady and Vette
Now I have bigger studs and other things, but it got me through back then.
Good luck with your racing!
I forgot to say nice looking lady and Vette
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Racer
Joined: Jul 2004
Posts: 332
Likes: 0
From: Geneva Ohio
We have gone 9.90 @ 135 MPH on Hoosier 27x10.5x15 Quick time pro's mounted on 15x8.5 Convo pro wheels with, I think 4 1/2 or 4 5/8" back space. You can probably go with 11.5" tire without too much trouble with clearance but they will stick out a little. regardless you really don't need 13 1/2 inch tire to get a Vette down the track when you get the tires planted. BTW, We had much better results with the Hoosiers over the ET Streets.
Thread Starter
Instructor
Joined: Oct 2005
Posts: 140
Likes: 0
Originally Posted by red79vette454
We have gone 9.90 @ 135 MPH on Hoosier 27x10.5x15 Quick time pro's mounted on 15x8.5 Convo pro wheels with, I think 4 1/2 or 4 5/8" back space. You can probably go with 11.5" tire without too much trouble with clearance but they will stick out a little. regardless you really don't need 13 1/2 inch tire to get a Vette down the track when you get the tires planted. BTW, We had much better results with the Hoosiers over the ET Streets.
"BTW, We had much better results with the Hoosiers over the ET Streets."
Im gonna return the ET's cause I herd this from a couple people, and the Hoosiers are 1/2" narrower in the section which is gonna help me out.
Im thikin of even goin with 15x12" rim 4 3/4 offset convo pro's, because my flares are wider and with toms offset trailing arms, I have 13 3/8 space between the frame and end of flare, and it clears all the way around. So with a 12" rim its not even gonna stick out that much mostly tire section and maybe 1/4-1/2" tread, I would just need to modify the frame by where the trailing arm co
Burning Brakes
Joined: Feb 2004
Posts: 958
Likes: 0
From: shawnee ks
Originally Posted by red79vette454
We have gone 9.90 @ 135 MPH on Hoosier 27x10.5x15 Quick time pro's mounted on 15x8.5 Convo pro wheels with, I think 4 1/2 or 4 5/8" back space. You can probably go with 11.5" tire without too much trouble with clearance but they will stick out a little. regardless you really don't need 13 1/2 inch tire to get a Vette down the track when you get the tires planted. BTW, We had much better results with the Hoosiers over the ET Streets.
Racer
Joined: Jul 2004
Posts: 332
Likes: 0
From: Geneva Ohio
Originally Posted by big632
IT all depends on your powerplant up front, I agree go with the smallest tire that gets the job done but sometimes even a 17 inch is not enuff.Regardless of how much chassis you got.
Thanks for the compliment. We are running a 400 Turbo with an 8" converter. PM me your email address and I can send you a video.
Be careful with those big tires. The soft sidewall flexes a lot. Ask me how I know. We cut two 13" slicks on the spring bolts form a winding return road. There is over one inch clearance and that isn't enough.
And believe it or not the Hoosier QTP sixty foot almost as quick and more consistent than the fat slicks.
Race Director
Joined: Apr 2000
Posts: 17,676
Likes: 201
From: Who says "Nothing is impossible" ? I've been doing nothing for years.
Get the 15 X 8.5in. Convo Pros with the 3 3/8 backspacing and you can run a nice drag radial or 10 in. slick, I have 295's on the back of mine,
Was entertaining the idea of getting offset trailing arms and trying the 10 in. wheel with 5 in backspacing but you say they won't fit, do you have offset arms ?
So anyway, lets say the backspacing is 3.5 in. instead of 3 3/8 in. to make this easier. The 8.5 in. wheel wll have 3.5 in. sticking in from the hub and 5 in. sticking out from the hub. If I changed to 10 in. with 5 inch backspacing this would give me the same 5 inches sticking out but now I would have 5 inches going in. The difference is about 1.5 inches more rim into the trailing arm. Will the offset arms not clear 1.5 inches more ?
Was entertaining the idea of getting offset trailing arms and trying the 10 in. wheel with 5 in backspacing but you say they won't fit, do you have offset arms ?
So anyway, lets say the backspacing is 3.5 in. instead of 3 3/8 in. to make this easier. The 8.5 in. wheel wll have 3.5 in. sticking in from the hub and 5 in. sticking out from the hub. If I changed to 10 in. with 5 inch backspacing this would give me the same 5 inches sticking out but now I would have 5 inches going in. The difference is about 1.5 inches more rim into the trailing arm. Will the offset arms not clear 1.5 inches more ?
Thread Starter
Instructor
Joined: Oct 2005
Posts: 140
Likes: 0
I went with 15x12 4 3/4 offset convo pros, 28x13.50x15 hoosier tires a perfect fit with my offset trailing arms and flares. Heres some teaser pics in the garage, ill take better ones when the whole project is done.
