FD3S RX7 18x9.5 +35 will they fiiiit??
 

Surely someone would have asked for this wheel size somewhere before, but I cant work out if this will work or not...

Stock car with Tein RA height adjustable coilovers.

Tires would be: 245/40/R18 all round.
Wheels would ideally be: "ROTA P45R2" 18x9.5 +35 all round.

Basically this would be for an every day driver FD that I would expect to have very little rubbing or issues. Not into this "flush" bullsh!t, and I dont like the whole idea of that, or a lot of silly camber, etc. I want functionality.

That will fit withou problem

Rears will sit basically flush with the fender. Front will stick out a bit.

Thanks guys. I would be buying the set online, so its hard to size them up without physically getting them here. Which makes it a gamble I dont want to take unless someone more experienced with this size/tire combo chimed in and said it was possible.

I do really like the Rotas though, so I am very hopeful...!!

So an 18x9.5" with +35 offset will fit all round, and will fit under the front arches without hitting/rubbing things like crazy?

(I figured the rears would probably fit, as there looks to be a lot more room under the rear arches)

:)

Say I was going to run the 245/40/18 tires all round.
And I was set on 18x9.5" rims all round.

What offset would people recommend? Not for looks, just functionality.
+38, +35, +30, +20, +15?

Because thats where my calculations are falling down. I dont know enough about what offset sizes the FD chassis can accomodate under the arches.

+38MM is what I run with 18x10 front and rear. I would run 255/35/18 or 245/35/18 tires. These are closest to the tire diameter of stock.

I had to roll the front and rear fenders on mine with the tires I am running. you will most likely need to roll the front fenders on yours.

38 and you can always use a small spacer in the rear.

This is going to be a long and complicated post, so bear with me while I explain "everything"that I have measured and learned..

So the car has already got rolled/pumped out fenders. I didnt remember this til I went outside and looked at it. I'm just used to looking at it, so it seems normal to me. They are about an inch flared (and done pretty well I might add) before I bought the car, so done in Japan.

Here is what it is running at the moment:

Front: Super Advan SA3R 18x9 +45 with a 245/40/R18 tire
Outer lip clearance to fender: 30mm. Inboard lip clearance to suspension: 55mm.

Rear: Super Advan SA3R 18x10 +35 with a 275/40/R18 tire
Outer lip clearance to fender: 0mm flush. Inboard lip clearance to suspension: 40mm.

Based on all this, I have chosen the following wheel sizes for the new wheels:

Front: Rota P45R2 18x9.5" +35
Outer lip should have 24mm clearance to fender.
Inboard lip will have 46mm clearance to suspension.

Rear: Rota P45R2 18x9.5" +35
Outer lip should have 6mm clearance from fender.
Inboard lip should have 46mm clearance to suspension.

So I think I have it all worked out now. When it comes to wheel fitting, I admit I am hopeless. I always wanted new wheels, but the offset and clearance and measurements always scared me out of doing it, because I didnt want to order them and f$%^ the measurements up.
This time I'm going to do it!!

I think you're going to have to roll the front at least and stagger your tire sizes, depending on how low your car is.

you probably wont even need ot roll the fenders , But if you want a flush look you may have to , and you may need spacers lol

I have 17x9's in the front with -25 offset and they are sunk in Attachment 666479 i'd need a good spacer to make them flush

Tem120, my car has 18x9 +45 on the front right now, and it has at least double the "sunken in" space that yours has in that photo. But my guards are flared and rolled out a lot.

IE: right now with my current 18x9 +45 fronts, there is 30mm (inch and a quarter or so) from the tire to the lip of the fender. Major sunkeness!! :p I bet your car has less than that?

With the new 18x9.5 +35, they will extend out 16mm towards the fender compared to the old rims. I already have 30mm space there. So there will be 14mm space to the fender lip with the new wheels.
Which says they should fit under the front nicely..


**Also, I dont think the front wheels in that photo are -25 offset.
+ positive offset sets the wheel further inboard toward the brake side of the wheel and has not much dish.
- negative offset sets the wheel out towards the outside of the car for that "deep dish" look.

+25 would still have a deep dish look, and be rubbing the outer fender.
-25 would have so much dish, it would be insane.

Those front wheels look like they are +38 to +35, because they dont have a lot of dish?

:)