88gunmetalgta

iTrader: (1)

Trying to get a feel for what wheel sizing will work out nice on my car before I start welding.

My 9" housing is narrowed 2" per side.

I will be mini-tubbing the rear end (likely the wolfe racecraft pieces for 4th gens)

My LCA's will be moved inboard as far as necessary, as will my rear coilovers.


The main goal was to run a more nostalgic muscle car backspacing (think 15x10, 4.5" bs) which I probably could have done without minitubs and lca relocation, but with the rust in my wheelhouses, the minitubs are happening regardless, so why not go with a wider wheel?

I really like new Weld RTS S76, but they don't have the specs out yet, so going with the S71 specs it looks like they offer a 15x11.33 with 5.5" bs, which would essentially put the wheel just .33" farther out than guys running a 15x10 6.5" bs. So far so good...

I will be running drag radials. I won't be able to bolt up my GTA crosslaces to the narrowed housing. MT ET Street 28x13.5 R15 look like they would fit the bill. Since the tires are a little wider compared to the wheels, I think I'll end up with my tires sticking out another .5" compared to your typical 15x10-6.5 setup.

How do you guys think that will look? I bet I'd probably need to roll the fenders, but can I get away with the wheel that close the the fender without having to grow a mu11et?

88gunmetalgta

iTrader: (1)

Anybody?


Per that post, it looks like I'd have an extra ~.2 inch sticking out, bringing me to about 3/4" closer to the outer fender than the 10"-6.5. Now I'm thinking I would be better off with the 15x11.33 6.5" BS wheel...

88gunmetalgta

iTrader: (1)

Nobody seemed to interested before, but here's what the fitment looks like. 28x13.5 R15 ET Street Radials on Weld Racing S76B 15x11.33, 6.5" B.S. Axle narrowed 2"/side, LCA's inboarded ~1.75", and mini-tubbed with the wolfe racecraft 4th gen tubs.










If anyone wants any more info, shoot me a PM since I'm not on here all that much anymore.

browncamaroz28

iTrader: (1)

Nice setup! If i was going for straight line performance I would probably do the same

88gunmetalgta

iTrader: (1)

My strategy wouldn't change much if I wanted to run 325 Hoosier R6's, aside from wheel choice. I believe 86 T/A has a similar overall tire size, but with stock rear end width and offset LCA's so he avoided most of the fab work I had to do. Its a lot of work for the gain, but I really wanted a bit more of a dish to the wheels than most third gens can get away with.

irocbrninrubber

ANy pics with all four wheels installed? those wheels look sharp!

88gunmetalgta

iTrader: (1)

Thanks! Nope, front wheels are still on order, and the car is not a roller yet. As soon as it is mobile I'll have to roll it outside and snap some pics

indebt

iTrader: (1)

Looks good!! Wondered what that style of Rts would look like. Going with 17's up front?

articwhiteZ

iTrader: (56)

im runing the same tire 325 50 15 on welds rts 10.275 15 6.5 back space
no bump stops. and lca with offset bushings. I also had to move the iner fenders in 2" to 3" inch to clear side walls alot more then just cutting bumpstops off.

all the inside wall is now right up to the inside plastic. but they are all under the car.. when i had my 9" made for my car.if i planed better i would have done the same and taken 2" off ea side...

88gunmetalgta

iTrader: (1)

I read your thread from when you test fitted all the RTS wheels a few times before I picked the configuration. Now imagine the inner sidewall of your wheels being moved in another 2" per side! Offset LCA's might get the job done with 8.5" backspacing, but the narrowed rear end made the inboarded LCA's definitely necessary. The brake caliper would have interfered with the LCA brackets at that point.

articwhiteZ

iTrader: (56)

like the way it looks on yours. mine sits even with the upper lip. its under but just..

iv done every thing to the back now but back half it... maby nexed.$15.000 to$18.000. will take it on a 5 hr tow to art Morrison. and drop it off...lol

this year was rear coil overs up from the GC wt jacks (never installed them)
up graded before that..lol

the shape of the MT Sportsmen makes it tuck under more. as the foot print is just under 11" and the MT Drag Radial is just round at the footprint making it 13" wide. tires layed on there side are the same width/high.but this pics make them look way bigger

the radials are 1" shorter also at 28" tall and the sportsmen at 29" tall