I'm planning on getting some wheels for my FC. I have an AE. I was wondering, what's the biggest I can fit on there? I was planning on getting some Motegi Touge Factory wheels. I wanted to get 18"s. 18x10 in the back, 18x9 in the front. I was wondering, would these fit? And what are the limitations of the FC?

 

After doing a quick search I found the "Official FC wheel fitment thread", this oughta have what you need in it.
https://www.rx7club.com/showthread.p...ize+wheels+fit

 

Holy ****, that's 104 pages...

Okay, so what would be the best offset for 18x9 in the front and 18x10 in the back? Oh and from that thread, I'm guessing that 10 inch width would fit on my FC with no problems?

 

Oh what's the widest tire I can fit on those rims? What would be the best size tires for those rims?

 

Okay, so here's what I was planning:

Front: 18x9 +12mm
Back: 18x10 +30mm

Would these fit fine on my FC? If the front Offset is too low, they also come with a +25mm offset, will that fit?

Thanks in advance.

 

http://www.fc3spro.com/TECH/MODS/RT/rims.htm

Front will most definitely be protruding from the fender, and might just rub...
The rears should probably go with a lower offset.

 

The 18x9, which I plan to put in the front, come with a +12mm offset and +25mm offset. The 18x10, which I intend to put in the back, only come in the +30mm offset.

 

Well, according to the chart Healing posted, the front would work, but you'd have to modify the fenders in the rear.

 

^^ With overfenders. Your wheels are going to stick out like crazy with that offset on stock fenders

You *might* be able to get away with a lower offset in the rear...maybe...(also dependent on tire size)

 

"bcool" was running fn's in 17x9F and 17x10R without over fenders.

he never answered me on the offsets though.

judging by his pics, you can get away with 9F 10R without using over fenders, but you're probably going to need a roll front and rear. you will also need to do a decent pull on the front. finally, camber adjustment will be really beneficial...

https://www.rx7club.com/lounge-192/went-out-took-bunch-pictures-turd-545696/

btw motegi touge is meh. if you are going to spend all that money, get some nicer wheels...

 

So with coilovers from a pure backspacing perspective you can run IMHO at most a 9" +15 offset. now this will also depend on the size tire you choose to put on there. you might have to go with a lower offset if the tire is bulgy on the wheel.

I would most definitely say a 9" wheel with STOCK FENDERS and NORMAL ALIGNMENT will not work. I'm assuming you are not stretching tires, but even if so under severe compressio of the suspension i'm sure you'll hit the rim lip or the "rim's tire edge".

In the rear, this one is difficult. It all comes down to camber and tire size. I will say that a 10" + 35 is very close one of the suspension arms and with a 285/30 will not work on the inside or outside. I would still be concerned with rubbing issues under suspension compression with a 255 width as well. If you roll the fenders and work your alignment you'll be set.

The whole question comes down to what you're trying to acheive. If you're going for a stretch "drift" look then you're already prepared to mess with your car to get the look you want. If you're looking for speed and a grip setup then I would say you'll need to look for a lighter wheel that will allow for maximum tire section width.

On normal rolled fenders, I'm running a 16x8 +30 front with a 245/45/16 and a 16x8 +25 245/45/16. I'm pretty much at my limits on this car to have proper suspension travel and no rubbing.

I've always typically run 9.5 " +35 with 255 section width tires on stock fenders and prob about 2 deg of camber.

Rishie

 

Yep, it's a matter of what size tires you're planning to run?
A 9.0" would dictate a 255 wide tire in my book...maybe down toa 245.
With that kinda rim width / tire size, you just cannot stuff it under the front fenders.

The 9.0", +12 will clear everything inside no problem up front.

Might I ask why you're insisting on running such "big" wheels?
Are you running 300+..400 hp?
If you're running big power, you're just loading your car with more unsprung weight - this is BAD.


-Ted

 

Yup totally agree. Balance your wheel weights with your power capacity. Build a balanced vehicle and it will perform much better. I guess that's why I'm trying to figure out your objective. THat's the only way for your Wheel Vets to advise you properly.

Oh ya, I meant to say that 9.5" is typically the WIDEST I go on stock body FC. More than often it's always a 9" with a 255 or 245 as Ted mentioned.

Rishie

 

I've seen the perfect offset of wheels, 18x9 Fronts with a +25 and 18X10 rears with +18, they fit under stock fenders and quarters, but rolling the inner fender is wise. Don't ask me about tires, the car that had this set up wasn't mine. The guy that rocked it is on here. He's the guy that had the red FC with the gold Volk GTN's, he bought them off of his friend that had the white FC with them on it at last year's Sevenstock. Rishie, don't you know who I'm talkin about? He ran the set up like this, I just don't remember what tire sizes he was runnin.


J

 

**** i don't remember. My brain is so fried. But from pure backspacing calcs that doesn't seem to make sense. Esp with coilovers. His tires must have been way stretched and must have had a lot of camber. Must have rolled quite a bit as well and the pulled the fender out a little.

Rishie

 

...or he was running a coilover set-up that has adjustable perches, and just jacked them out of the way to get the added clearance.

I know the Tein RA's can do this.


-Ted

 

Ya but it would be like a 4x4.

You're talking about a suspension that does not have independent ride height and spring preload adjustments.

he could have gotten a really short linear spring, but then I'd be concerned about what spring rate he got and coil bind.

 

17x8 F
17x10 R
+35 mm all around w/ 5mm spacer up front. I was rubbing on the front spring for a while but had to sort of ghetto fix that issue. You will need the DTSS delete bushings in the rear as you are too close to the Trailing arm.