Maximum Wheel and Tire Width Fitment Guide for the FD
03-13-15, 04:41 AM
#276
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245 on 10.5 is by definition a stretch. Max wheel width for 245/35-18 is 9.5".
+15 offset seems kinda low.
Skinny(ish) tires stretched onto wide wheels with low offsets is not a look for everyone...
03-23-15, 05:25 AM
#277
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235/35 on 9.5 is doable, max wheel width for that tire, a bit stretchy looking for most. 245 on 10.5 is by definition a stretch. Max wheel width for 245/35-18 is 9.5". +15 offset seems kinda low. Skinny(ish) tires stretched onto wide wheels with low offsets is not a look for everyone...
Rolled fenders, Enkei Rpf1 18x9.5 +15 front and 18x10.5 +15 rear with Nitto NT555 235/40 front and 265/35 rear and they fit.
03-24-15, 08:15 AM
#278
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I'm gonna go ahead and say that does not really "fit" as far as *most* people are concerned.
Pics?
03-24-15, 09:23 PM
#281
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Can that be made to "fit" by some loose definition of the word? I guess so. Not what I'd call a safe fitment though, and definitely gives a "poke" look that does not appeal to all. And that scrub radius... I'm gonna go ahead and say that does not really "fit" as far as *most* people are concerned. Pics?
03-26-15, 10:18 AM
#284
03-26-15, 11:20 AM
#285
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rolled fenders.
You want to ride wide wheels and tires and run them with a slight stretch of the tire. You want to maintain as close to stock tire diameter and offset as possible.
I think the best wheel fitment with the least damage to the design of the car while maintaining stock tire diameter and still having good room for not destroying the fender liners in the car is below. I am going to push as far as I can to the inside of the wheel well. this is what I would recommend for a custom offset and width wheel.
18x11 +45 to +48mm offset.
In order for this to work you will need aftermarket coilovers with small 2.5" diameter or so springs to gain the clearence inward. The fenders will need to be rolled, and some negative camber will around -1.3 degree to -2 degrees for the front and -1.3 degrees rear.
Run a 285/30/18 wide tire. 11" or 10.5" wide tread width. you can also run a 295/30/18 but I wouldn't run a wide 295. look for a 10.5-11" tread width.
If the tread + sidewall extends much past the wheel it will contact the front coil spring, or the rear trailing arm of the car. You could get away with running them in the front and get ever so slight rub at full lock on the tire/spring coils, or you can run a small spacer in the rear of the car to space it out and still be able to rotate front to rear.
In order to get a wheel like this you need to either custom order the offset or widen a set of wheels. Enkei RPF1 18x10 +38 widened 1" will leave you with a 18X11 + 49.9mm offset and would probably work.
an Enkei NT03 18x9.5 +27mm widened to 18x11 would be a +45mm offset. This is a great choice for handling/looks (concave) and are cheap to beging with and strong.
I widened a set of 18x10.5 to 18x11.5 offset +42mm. I run a 285/30/18 right now. Will run the ad08R when done with these tires who have an 11" tread width.
Weldcraft wheels in Michigan widen wheels, they charge around $240/wheel.
You want to ride wide wheels and tires and run them with a slight stretch of the tire. You want to maintain as close to stock tire diameter and offset as possible.
I think the best wheel fitment with the least damage to the design of the car while maintaining stock tire diameter and still having good room for not destroying the fender liners in the car is below. I am going to push as far as I can to the inside of the wheel well. this is what I would recommend for a custom offset and width wheel.
18x11 +45 to +48mm offset.
In order for this to work you will need aftermarket coilovers with small 2.5" diameter or so springs to gain the clearence inward. The fenders will need to be rolled, and some negative camber will around -1.3 degree to -2 degrees for the front and -1.3 degrees rear.
Run a 285/30/18 wide tire. 11" or 10.5" wide tread width. you can also run a 295/30/18 but I wouldn't run a wide 295. look for a 10.5-11" tread width.
If the tread + sidewall extends much past the wheel it will contact the front coil spring, or the rear trailing arm of the car. You could get away with running them in the front and get ever so slight rub at full lock on the tire/spring coils, or you can run a small spacer in the rear of the car to space it out and still be able to rotate front to rear.
In order to get a wheel like this you need to either custom order the offset or widen a set of wheels. Enkei RPF1 18x10 +38 widened 1" will leave you with a 18X11 + 49.9mm offset and would probably work.
an Enkei NT03 18x9.5 +27mm widened to 18x11 would be a +45mm offset. This is a great choice for handling/looks (concave) and are cheap to beging with and strong.
I widened a set of 18x10.5 to 18x11.5 offset +42mm. I run a 285/30/18 right now. Will run the ad08R when done with these tires who have an 11" tread width.
Weldcraft wheels in Michigan widen wheels, they charge around $240/wheel.
Last edited by lOOkatme; 03-26-15 at 11:23 AM.
03-26-15, 12:02 PM
#286
This is possible on a stock body?
No.
Look at A_Shadow's pictures of his car- they obviously do not fit.
The tire will hit the fenders if the suspension compresses.
This is how you turn an FD into a stanced out hoopty that can only be driven slowly.
He has the wrong offset wheels as the wheel widths he chose would easily fit in the stock fenders with a wider tire even if he had the correct offset (+45 to +48).
I am merely saying unto him- if you think those wheels and tires fit your fenders, you could have fit these
18x11.5 +35 w/ 285 Front and 18x12 +30 w/ 295 Rear wheels and tires onto the car and had the same fitment to fender line.
No.
Look at A_Shadow's pictures of his car- they obviously do not fit.
The tire will hit the fenders if the suspension compresses.
This is how you turn an FD into a stanced out hoopty that can only be driven slowly.
He has the wrong offset wheels as the wheel widths he chose would easily fit in the stock fenders with a wider tire even if he had the correct offset (+45 to +48).
I am merely saying unto him- if you think those wheels and tires fit your fenders, you could have fit these
18x11.5 +35 w/ 285 Front and 18x12 +30 w/ 295 Rear wheels and tires onto the car and had the same fitment to fender line.
03-26-15, 03:53 PM
#287
Thanks for the info fellas. My goal is to get as much rear traction as i can get. Currently have 265s and they are useless. 540rwhp and 500rwtq. I think a 295 r888 is my best bet.
Im thinking of pulling the fenders as well but may not be needed
Im thinking of pulling the fenders as well but may not be needed
03-26-15, 06:13 PM
#290
I'd love to see pics of some of this fitment.....
this thread is for STREETABLE setups guys, that don't destroy the fenders.
If you were talking to me.
I have a lot of pics of my 18x11 +45 w/ 295/30-18 Ventus TDs already on the forum and this thread, but none with the R888 yet.
I like to think the fenders aren't destroyed.
this thread is for STREETABLE setups guys, that don't destroy the fenders.
If you were talking to me.
I have a lot of pics of my 18x11 +45 w/ 295/30-18 Ventus TDs already on the forum and this thread, but none with the R888 yet.
I like to think the fenders aren't destroyed.
03-26-15, 10:05 PM
#291
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^I actually somehow stopped reading at post #280, which was the bottom of a page for me. So I didn't see all of the recent pics. Pretty funny to see the subsequent pictures that pretty much prove a +15 offset doesn't fit on OEM fenders, which we kind of know 
P.S. Nice steering wheel
P.S. Nice steering wheel
03-30-15, 07:27 PM
#294
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Hi Guys,
I am looking to buy a set of rims for the track next week, due to my car making 280Kws at the wheels I think it will be a good idea to get at least a 10inch wide wheel at the rear.
I under stand that the Enkei NT03+M 10.5+30 is too large in the rear by about half an inch will this fit perfect then? Enkei RS05RR 18x10+30
And for the front I would the same wheel but 18x9+40
I am looking to buy a set of rims for the track next week, due to my car making 280Kws at the wheels I think it will be a good idea to get at least a 10inch wide wheel at the rear.
I under stand that the Enkei NT03+M 10.5+30 is too large in the rear by about half an inch will this fit perfect then? Enkei RS05RR 18x10+30
And for the front I would the same wheel but 18x9+40
03-31-15, 03:34 AM
#295
The 18x10.5 +35 RS05RR will fit with a 265 front and rear with rolling the front/rear fender lips under.
The 18x10.5 +38 PF01 fits a little better with 265s front and rear. You will have to roll your front fender lip under.
A narrower front wheel is going to be slower unless your "track" is a straight line, then disregard.
Here is my car back when I ran the 18x10.5 +38 PF01.
The 18x10.5 +38 PF01 fits a little better with 265s front and rear. You will have to roll your front fender lip under.
A narrower front wheel is going to be slower unless your "track" is a straight line, then disregard.
Here is my car back when I ran the 18x10.5 +38 PF01.
03-31-15, 11:34 AM
#297
265/35-18 on 18x10.5 is OEM fitment for Porsche and BMW, so they didn't think it was too much of a stretch.
Some 265/35-18 tires include up to 10.5" width in recommended fitment some stop at 10".
My own experience was with Federal 595 RS-R and Hankook Ventus TD 265/35-18 (both only lists up to 10" wide wheel), but it worked very well on the 10.5" in the auto-x, kart track, hillclimb racing and street driving I do.
Very good turn in/sidewall response and very easy to transition in/out of high slip angle seamlessly.
Some 265/35-18 tires include up to 10.5" width in recommended fitment some stop at 10".
My own experience was with Federal 595 RS-R and Hankook Ventus TD 265/35-18 (both only lists up to 10" wide wheel), but it worked very well on the 10.5" in the auto-x, kart track, hillclimb racing and street driving I do.
Very good turn in/sidewall response and very easy to transition in/out of high slip angle seamlessly.
03-31-15, 12:37 PM
#298
Ok guys, getting ready to pull the trigger and just making sure I'm set.
18x10 +35 with 265/35r18 r888 front
18x11 +45 with 295/30r18 r888 rear
Rears are already rolled. I found a guy to do a pull if needed. Car is low on Megan coilovers and I plan to raise it up a small amount while adding rake.
Goals are stupid traction, slight stretch, almost flush with wheel
Thanks a ton
18x10 +35 with 265/35r18 r888 front
18x11 +45 with 295/30r18 r888 rear
Rears are already rolled. I found a guy to do a pull if needed. Car is low on Megan coilovers and I plan to raise it up a small amount while adding rake.
Goals are stupid traction, slight stretch, almost flush with wheel
Thanks a ton
03-31-15, 02:10 PM
#299
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Ok guys, getting ready to pull the trigger and just making sure I'm set.
18x10 +35 with 265/35r18 r888 front
18x11 +45 with 295/30r18 r888 rear
Rears are already rolled. I found a guy to do a pull if needed. Car is low on Megan coilovers and I plan to raise it up a small amount while adding rake.
Goals are stupid traction, slight stretch, almost flush with wheel
Thanks a ton
18x10 +35 with 265/35r18 r888 front
18x11 +45 with 295/30r18 r888 rear
Rears are already rolled. I found a guy to do a pull if needed. Car is low on Megan coilovers and I plan to raise it up a small amount while adding rake.
Goals are stupid traction, slight stretch, almost flush with wheel
Thanks a ton
Better would be 18x11 +45mm front with 285/295 front tire and do the same for the rear.
03-31-15, 02:23 PM
#300
Yeah, the 295/30-18 R888 on 18x11 is not stretch at all. Its straight sidewall from wheel.
I will post pics of them currently on my RX-8 this evening and then maybe stick them back on the FD later when I have time.
18x10 +35 with 265/35r18 r888 front
18x11 +45 with 295/30r18 r888 rear
Will fit with roll and slight pull front and rear and max front negative camber.
You could run the 18x11 +45 front and rear so you could rotate and more grip if you want.
The fitment to the outside of the fender is only 2mm less on the narrower wheel/tire you specify. That 2mm is available when you are in there rolling/pulling the fronts anyways.
---------------
I was ~.5 seconds slower per 57sec lap this year on the R888 versus the stickier Hankook Ventus TDs. 4:47/5 laps versus 4:44/ 5 laps.
I will post pics of them currently on my RX-8 this evening and then maybe stick them back on the FD later when I have time.
18x10 +35 with 265/35r18 r888 front
18x11 +45 with 295/30r18 r888 rear
Will fit with roll and slight pull front and rear and max front negative camber.
You could run the 18x11 +45 front and rear so you could rotate and more grip if you want.
The fitment to the outside of the fender is only 2mm less on the narrower wheel/tire you specify. That 2mm is available when you are in there rolling/pulling the fronts anyways.
---------------
I was ~.5 seconds slower per 57sec lap this year on the R888 versus the stickier Hankook Ventus TDs. 4:47/5 laps versus 4:44/ 5 laps.