zx1441

I've been sifting through the archives on this forum trying to determine the size and specs to see if this wheel will fit. Haven't found a direct match. I have rolled fenders, stock control arms and this wheel will have a 275-40-17 hoosier or M/T drag radial mounted. There is no offset listed on thiis wheel, only backspace. Will it fit?

TwinCharged RX7

iTrader: (14)

You can convert backspace and width into offset.

I think rob dahm has those and showed the specs. Believe he had stock rear but feed front fenders.

zx1441

Rob runs welds that are 15x10 with 4 and 1/2 inch back spacing on the 3 rotor. He has aftermarket control arms too.

The wheel I posted above is 17 x 9 with back space at 6.2 .

I'm not sure how that equates to the inside lip being closer to the control arm or if it pushes the width of the wheel further out ward to the fender lip.

zx1441

I used this calculator and here are the results.

Basically a 17x9 with a 30mm offset.

usually people are stretching a narrower width tire to fit that kind of offset.

zx1441

This thread I just pulled up has a member trying to fit a 17x 9.5" wheel with a 30mm offset and run a 275 tire. They say in the thread that with a roll it should work. So I'm thinking since I'm rolled and want to use a narrower 9" wheel, I might be good to go.

https://www.rx7club.com/suspension-w...ear-fd-936735/