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

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

 

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

 

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/

 

Interesting

 

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

 

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

 

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

 

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.

 

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.

 

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.

 

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

 

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

 

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.

 

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

 

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?

 

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.

 

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