Saner

iTrader: (1)

Will these tires fit on an FD without any rubbing issues or modifications?

275/35-18
on
9 1/2" wheel with 35 Offset

diyman25

mm.. you are pushing it. I used to have 18x9.5 offset 38 F/R with 255. but my ride hight is pretty hight and and had about -2.5 camber

cabaynes

iTrader: (4)

that 35 offset is really bad, something between 45-50 would be ideal with that tire. you'll probably end up needing some heavily rolled fenders if you plan to lower the car.

Check this thread out
https://www.rx7club.com/suspension-wheels-tires-brakes-20/fd-wheel-fitment-page-390021/

Saner

iTrader: (1)

Interesting

rynberg

Will most definitetly require fully rolled fenders in the back. Don't even try it up front.

7racer

hey whatever happened to that guy who bought the 19 +25 for the back???

Saner

iTrader: (1)

What's the widest tire I can go for in the rear?

rynberg

The problem isn't the width, it's the wheel offset, which is way too low. You can easily fit a 285 in the back with the proper wheel offset.

mark57

I think the best wheel/tire sizing is 245/40/18 F and 275/40/17 R. According to secret-secret tire calculator, the circumference is nearly an exact match - it won't screw up the ABS computer.

rynberg

You do not want to run that large a tire diameter up front. Small differences are not going to mess up the ABS computer. If you are that concerned about it, I would stick with much better diameter tires -- 235/40 and 265/35 18, 245/35 or 255/35 and 285/30 18, etc.

EDIT: Don't forget, the calculators are nice but they don't account for the fact that every tire manufacturer has their own sizing -- some Pirelli 265/35 18 are only 25.2 in diameter, while my Toyo T1-S in that size is 25.4 in diameter.

mark57

Yeah, you're right. 18's have much better size options than 17's.

RedR1

iTrader: (5)

Granted everything else is taken cared of, 285's will fit up front

Saner

iTrader: (1)

Ok, so what tire size should I go with for the rear? I can't return or exchange the wheels so I have to make the best out of it. I would like the widest tire possible.

diyman25

this really depend on your ride hight and camber. for the front if you plan to lower you car. use some narrow tires ( some thing like 235) so overall wide will be smaller. and the rear you should be fine with 255-265 tires

Saner

iTrader: (1)

I'm lowering it using the Eibach Pro-Kit Springs, and I'm not sure how low it's going to be. Will I need a camber kit?

rynberg

In the rear, lowering the car will have nothing to do with whether or not the tire clears the fender or not. And no, you don't need a camber kit, the FD has a real suspension, not MacPhereson struts.

With a 18x9.5 +35 wheel, I would try a 265/35-18. It should clear the fender lip, but it's going to be close. Depending on the exact tire model and camber setting, you may have to roll the rear fenders.

Saner

iTrader: (1)

Thanks, rynberg! I'm going to give the 265's a shot.