The Official FC Wheel Fitment Thread
In all my experiences for standard backspacing with coilovers on FC your MAX offsets for safety should be around:
Keep in mind i'm basing this on a GRIP FITMENT, not stretched with camber.
Front:
9 +20
10 +8
that being said i honestly thing you'll need a 15mm spacer at minimum to clear your coilovers. With 20mm front fenders I can run a 9 +15 and 255 just barely clearing with prob 2.5 deg camber.
I'd say 10" +5 would be IDEAL for your 30mm front fender, ergo get a 20mm spacer and net a 10" +2 front with 30mm fenders.
With 50mm rear I'm currently able to run approx:
18x10 -10 to -15, that would equate to an 11 +0 practically.
That being said i believe your 11" will stick out approx 1" with 35mm rear fenders. That's pretty significant. I'd suggest getting 50mm and you'll be good.
Rishie
Keep in mind i'm basing this on a GRIP FITMENT, not stretched with camber.
Front:
9 +20
10 +8
that being said i honestly thing you'll need a 15mm spacer at minimum to clear your coilovers. With 20mm front fenders I can run a 9 +15 and 255 just barely clearing with prob 2.5 deg camber.
I'd say 10" +5 would be IDEAL for your 30mm front fender, ergo get a 20mm spacer and net a 10" +2 front with 30mm fenders.
With 50mm rear I'm currently able to run approx:
18x10 -10 to -15, that would equate to an 11 +0 practically.
That being said i believe your 11" will stick out approx 1" with 35mm rear fenders. That's pretty significant. I'd suggest getting 50mm and you'll be good.
Rishie
Mid OH Corner Carver
Joined: Dec 2001
Posts: 33
Likes: 0
From: NW OH
16x8.5 +34 Fit?
Hi: Been searching the many messages on this thread. Will 16x8.5" +34's fit on an FC with Tokico Illumina struts/shocks and Eibach lowering springs? If so, what tire sizes would work?
Thanks a lot,
Vince
Thanks a lot,
Vince
In The Twisties
Joined: Jun 2003
Posts: 320
Likes: 1
From: Vancouver, BC
In all my experiences for standard backspacing with coilovers on FC your MAX offsets for safety should be around:
Keep in mind i'm basing this on a GRIP FITMENT, not stretched with camber.
Front:
9 +20
10 +8
that being said i honestly thing you'll need a 15mm spacer at minimum to clear your coilovers. With 20mm front fenders I can run a 9 +15 and 255 just barely clearing with prob 2.5 deg camber.
I'd say 10" +5 would be IDEAL for your 30mm front fender, ergo get a 20mm spacer and net a 10" +2 front with 30mm fenders.
With 50mm rear I'm currently able to run approx:
18x10 -10 to -15, that would equate to an 11 +0 practically.
That being said i believe your 11" will stick out approx 1" with 35mm rear fenders. That's pretty significant. I'd suggest getting 50mm and you'll be good.
Rishie
Keep in mind i'm basing this on a GRIP FITMENT, not stretched with camber.
Front:
9 +20
10 +8
that being said i honestly thing you'll need a 15mm spacer at minimum to clear your coilovers. With 20mm front fenders I can run a 9 +15 and 255 just barely clearing with prob 2.5 deg camber.
I'd say 10" +5 would be IDEAL for your 30mm front fender, ergo get a 20mm spacer and net a 10" +2 front with 30mm fenders.
With 50mm rear I'm currently able to run approx:
18x10 -10 to -15, that would equate to an 11 +0 practically.
That being said i believe your 11" will stick out approx 1" with 35mm rear fenders. That's pretty significant. I'd suggest getting 50mm and you'll be good.
Rishie
I think I'd rather try to find another set of wheels, or mod these to fit like getting the barrels cut down. My rear fender is bonded to my car, I will never get it off.
Edit : Found another cool set
18x9 -19
18x11 - 1
Last edited by E_Dub; Aug 14, 2008 at 01:51 AM.
Just not worth the trouble, but new wheels.
Rishie
16x8.5 +34 will work, i know the 225/50 will work, but maybe you can fit a 245/45/16 up front. Rear for sure will work.
Rishie
Rishie
16x8.5 +34 will work, i know the 225/50 will work, but maybe you can fit a 245/45/16 up front. Rear for sure will work.
Rishie
Mid OH Corner Carver
Joined: Dec 2001
Posts: 33
Likes: 0
From: NW OH
OK so RX8 wheel:
#1: Tire is too tall for FC. even for FD.
You need to change to a 225/40/18 ideally.
#2: RX8 wheel = 18x8.0 +50
Ideal offset for FC
Front:
8" +30
Rear
8" +15 to +25
Therefore you would want:
20mm studded spacer for front
25 to 30mm studded spacer for rear, 25MM ARE THE ONLY ONES EASY TO SOURCE
To make it look right.
Now consider the costs of these spacers at approx:
I can get you the appropriate Studded spacers AND THE AUTORND CONVERSION HUBRING TO MAKE THIS HUBCENTRIC TO FC.
20mm + 25mm studded spacers and conversion rings: $250.00 + $25.00
Total: $275.00 shipped to make this work how it should on the FC. Ideal fitment, performance, and looks. YOU'LL GET ALL YOUR WHEEL TRACK BACK. .
Hopefully you got the wheels with tires for under $600.00 + 275.00 to make it work.
Net expensive is near $900.00, and you still need to buy proper tire diameters for the front wheels.
I'd say you can reuse the 225/45/18 on the rear until they wear out.
once that is done i'd personally go with 225/40/18 front and 235/40/18 rear if you want to get a little more meat back there. Don't do 245/40/18 because it will cause MAD RAKE compared to the front tire OD.
Rishie
#1: Tire is too tall for FC. even for FD.
You need to change to a 225/40/18 ideally.
#2: RX8 wheel = 18x8.0 +50
Ideal offset for FC
Front:
8" +30
Rear
8" +15 to +25
Therefore you would want:
20mm studded spacer for front
25 to 30mm studded spacer for rear, 25MM ARE THE ONLY ONES EASY TO SOURCE
To make it look right.
Now consider the costs of these spacers at approx:
I can get you the appropriate Studded spacers AND THE AUTORND CONVERSION HUBRING TO MAKE THIS HUBCENTRIC TO FC.
20mm + 25mm studded spacers and conversion rings: $250.00 + $25.00
Total: $275.00 shipped to make this work how it should on the FC. Ideal fitment, performance, and looks. YOU'LL GET ALL YOUR WHEEL TRACK BACK. .
Hopefully you got the wheels with tires for under $600.00 + 275.00 to make it work.
Net expensive is near $900.00, and you still need to buy proper tire diameters for the front wheels.
I'd say you can reuse the 225/45/18 on the rear until they wear out.
once that is done i'd personally go with 225/40/18 front and 235/40/18 rear if you want to get a little more meat back there. Don't do 245/40/18 because it will cause MAD RAKE compared to the front tire OD.
Rishie
need more money
Joined: Nov 2007
Posts: 45
Likes: 0
From: hereford maryland
ok ill still dont have an answer ..i have lowering spring -1inch and i want to fit 17 with and inch ora little bigger lip on them can someone help me please i just need help please..someone
Mike Honcho
Joined: May 2007
Posts: 321
Likes: 0
From: des moines iowa
we need more information, what is the offset of the wheels and what is the width of the wheels.
need more money
Joined: Nov 2007
Posts: 45
Likes: 0
From: hereford maryland
thats what im asking what offset should i get like so i can have a lip like that all around and i want no bigger than 8in tire all around im sorry for being so vague on my needs ..please someone help i woul dlike to have 17 all around 8 in wide tire but i want someone who has pics with close to same specs..please thank you
Front would need a 10 mm spacer to clear the dampers/springs, and the rear would be sunk and dumb looking. It'd need a 25mm at minimum to look cool.
I've run a 17x9 +20 with 235/40/17 RS2s on the front before, and it fit OK. My fenders were rolled/pulled though, so your results may vary.
Don't run a 235/50/17, that's a HUGE sidewall. Run 235/40/17.
I've run a 17x9 +20 with 235/40/17 RS2s on the front before, and it fit OK. My fenders were rolled/pulled though, so your results may vary.
Don't run a 235/50/17, that's a HUGE sidewall. Run 235/40/17.
mazda mario
Joined: Jun 2007
Posts: 400
Likes: 0
From: port st lucie
i forgot to mention that i have kei-office coilover would it still clear the front?and rear how much sunked in will it it be like this ,this is 17x9 +30
Last edited by mario1386; Aug 19, 2008 at 10:58 PM.
245 in the front was with rolled stock fenders, right?
those are stock fenders up there, and yah theyre pulled out a bit.
with a bunch of camber, you prolly wouldnt need to deform them like i did. this pic is about 1 degree. i now have them around 2.5 degrees, and it looks like they might tuck under rolled (not pulled) stock fronts.
with a bunch of camber, you prolly wouldnt need to deform them like i did. this pic is about 1 degree. i now have them around 2.5 degrees, and it looks like they might tuck under rolled (not pulled) stock fronts.
mazda mario
Joined: Jun 2007
Posts: 400
Likes: 0
From: port st lucie
those are stock fenders up there, and yah theyre pulled out a bit.
with a bunch of camber, you prolly wouldnt need to deform them like i did. this pic is about 1 degree. i now have them around 2.5 degrees, and it looks like they might tuck under rolled (not pulled) stock fronts.
with a bunch of camber, you prolly wouldnt need to deform them like i did. this pic is about 1 degree. i now have them around 2.5 degrees, and it looks like they might tuck under rolled (not pulled) stock fronts.
hey man can you tell me your offset on the front rims on your car in the sig