fronts will fit, could contact spring at full lock a little. it wouldn't bother me personally if the fronts at full lock rubbed a little bit on the spring. I think you will be just fine.

I'm not a fan of the inside of a moving wheel hitting any suspension component. Just sayin' :)

GoodfellaFD3S I'm not a fan of the inside of a moving wheel hitting any suspension component. Just sayin'

Ditto that sentiment.

If you are going to have wheels custom widened there is no reason to go the full 1" and get the wrong offset when you could widen them 8/10" and get the right offset.

Nothing magic about whole number nominal wheel sizes on a custom wheel.

I am not a fan of widening wheels though. You are taking a wheel engineered for specific loads and adding width to it without adding strength.

I know for the early Forgestar wheels I got they had a problem at first with the 18x11 and 18x12 on heavy Audis, BMW, Mercedes of the inner lip cracking so they re-engineered the wheels (my reinforced 18x11 is still only 22lbs).

We can probably get away with a weakened wheel with our light FDs, but it just seems like adding a point of failure on a really critical component to me.

^ I can agree with your point on widening, and really have nothing to counter those statements. I was very hesitant to have a set of wheels modified at first due to the reasons you have stated. I have, however had 2 sets of wheels widened 1" by weldcraft. The workmanship is great, and both times when I have taken the wheels/tires to get balanced the manager of the place came to personally ask me who I had do the work because he said he has never seen a set of modified wheels done so nicely or balance so well. Combine that with the many cars running way more power than me, in much heavier cars actually out competitively racing with widened wheels by them.. and I dont have too many worries. Would a set of custom offset wheels done in the first place be "better"? Maybe, but Im picky with wheel aesthetics and sometimes I find a wheel I like but its not made in a desired offset so I make due when I can. Im currently running a set of Work MCO wheels which were 18x9.5 +35, widened 1" to an effective 18x10.5 +47.

Yeah, I would love some widened NT03+Ms because of how great they look on the FD.

I'm just too scared to do it myself.

There are a bunch of wheels I like and would love widened, I don't want to pay for the wheels and widening on all of them though.

I have always liked the volk CE28N, TE37, advan RG2, 3 wheels. Get the concave ones and widen them to a higher offset.

NT03 is probably my favorite. I also like the TC105N (but the offsets even widened would be too aggressive).

I really, really like a colored CE28N on an FD. 18x10 ET 39 might work, with a 255/35 and coilovers?

BLUE TII, are you doing the 11" front fitment with a 60mm spring on the Ohlins?

ETA: Anyone have datapoints or a graph on wheel width to offset for zero scrub radius?

I really, really like a colored CE28N on an FD. 18x10 ET 39 might work, with a 255/35 and coilovers?

Sure, that will work fine. With that offset you will have to roll the front and possibly rear fender lips under with the 255.


BLUE TII, are you doing the 11" front fitment with a 60mm spring on the Ohlins?

Yes, the 18x11 +45 clears the regular Ohlins spring by some MMs at full steering lock with full front camber (using stock eccentric adjuster).

Up front I had to roll/generous pull the fenders to fit the 295s and get a 1" shorter swaybar tube for the Tripoint bar.

In rear I had to roll the fenders/slight pull for the 295s.

That is it.

Ah, awesome. Wasn't sure if the Ohlins came with 60mm springs stock or not. Thanks. :)

Haraise Ah, awesome. Wasn't sure if the Ohlins came with 60mm springs stock or not. Thanks.

65mm ID springs.

http://www.roadandtrackbyohlins.com/...MI_MASMI10.pdf

That size front (18x11 +45) yields 95mm (94.7 to be exact) of frontspacing.

Seems like an awful lot, my 'standard' fitment is 9.5 +38, which is 83mm frontspacing.

I'm looking to run a 9.5 +30 (with a 255/35), which is 91mm frontspacing and really thinking about it. At this stage you're splitting hairs and tire size and ride height really comes into play....

GoodfellaFD3S
That size front (18x11 +45) yields 95mm (94.7 to be exact) of frontspacing.

Seems like an awful lot, my 'standard' fitment is 9.5 +38, which is 83mm frontspacing.

I'm looking to run a 9.5 +30 (with a 255/35), which is 91mm frontspacing and really thinking about it. At this stage you're splitting hairs and tire size and ride height really comes into play....



When talking about fitting a tire you can't think of front space without considering the backspace.

Meaning, it is all about the offset when fitting a tire. Offset tells you where a tire is centered.

The 18x11 +45 can fit a 30mm wider tire than a 18x9.5 +30 because the offset moves the tire edge 15mm from the fender (plus 15mm gets added to the inside of the wheel fitment.)

If you can fit a 255 on +30 offset (required a fender roll for me) you can fit 285 on +45 offset on the FD (IDK I went straight to 295).

This site is great for visualizing various fitments.
Online Wheel and Tyre Fitment Calculator. Offset, Tyre Stretch and Speedo Error | Will They Fit

Not only does the offset give you an indicator, but the tire diameter or height matters as the tire rotates forward and backwards in the wheel well. a short (285/30/18) wide tire AD08R can go on some pretty wide wheels with the right offset. it gives you the most clearance with the best fitment and wide wheels (18x11 +45-42mm).

^ +1. Ive learned this myself in the past year or so of wheel research and fitments. At first I was too concerned about where size/offset of the wheel itself placed the edge of the wheel in reguards to the fender. But that really is only one piece of the puzzle and one needs to look at the larger picture of whats happening and where the tire will be centered on the wheel and what effects its width has on what tire you are running.

So I bought a fender roller and started rolling my fenders myself. A lot easier than I thought it would be. I have 17x10+38 rpf1s, how much of a roll do I need to be safe? I'm going to be running the federal 595rsr tires which is fairly narrow at 9.1 tread width. But I don't want to have issue In the future if I change to a wider 255/40/17. Any alignment changes you'd recommend ? Thanks everyone!

Depends entirely on how much camber you run for how much you have to roll the fenders.

Front-
With the stock camber maxed at 2.4 degrees you would not even need a front fender roll.

Every degree less camber than that you will need ~5.5mm more clearance.

In other words, if you just roll the top of the fender lip up against the outside fender line so it is 2x thickness but stock contour (fender roll only, no pull) then you will clear the front with stock camber.

Rear-
No fender roll required with stock camber.

With that set up and alignment with an even a wide tire, you will be ok. I would run a -1.5 front camber and -1 to -1.3 degree camber rear. I run zero toe front and rear. Roll the fronts almost flat like you are doing, ensure you heat the paint so it doesn't crack on you. Then you can run any tread width you want;) I think that is the best value set up you can have (17x10 255 tire).

I'm still deciding between tires at the moment. I was gna go with 595rsr but am now considering the Dunlop ZII because of the stiffer side walls since I have 17s. Thoughts?

I would go with 255/40/17 like you have selected. Tires is up to you. I like the extreme sports class and anything that is on sale. I would even try some of the max performance tires if you can find a good deal. I have driven on Kumho XS, RE-11 and AD08's. They are all good with the RE-11 and AD08 being very good. the XS has a small dead spot on center but they are stiffer and corner very well in the dry. lots of grip. The turn in and feel of the RE-11 and AD08 are also excellent. I also wouldn't mind trying Michelin PS2's.

Just made my order!

Forgestar cf5 in matte gunmetal

18x10 +35 with 255/35r18 r888 front

18x11 +45 with 285/30r18 r888 rear

Pics should be up in 6 weeks. Thanks for the help with sizing

Awesome! I preferred the looks of the CF5 over the F14 I got.

When you get them on the car could you do us the favor and put the rear on the front of the car for a pic as well as the other pics we want to see of your fitment.

Seems like its hard for people to believe they fit the same.

Online Wheel and Tyre Fitment Calculator. Offset, Tyre Stretch and Speedo Error | Will They Fit

I'd be happy to.

I like the cf5 a lot but had considered the f14 as well. I wish they still did that tinted brushed look but I think the mattr tinted will still look good.

I'm thinking I'll only need 10mm of pull to make these work

maybe someone can help me, im in need of 4 new tires to go on my new wheels coming in this month..
This is my first ever buying of rims and new tires for a different size rim, since i always just got the same that was on the car since i had it.
i got 18x9.5 +45 all around (will be adding spacers later to fix the offsets)

Was looking to put on them either R888 or NT01s .. i am running the 25'' ride hight front and back, may raise the back up to 25.7 depending on how the car looks with the new wheels.

i care for performance not looks, so they dont need to be super streched.. but also a size for the front that wont rub the fender liner.. Thanks for the help in advance.

Talking from experience, I like the ZII's because they are consistent. They have decent cold traction, they dont dry up (rumor has it they go strong till chording), they are good in wet and they are stiff. RS3's has similar grip when fresh but they required a warm up lap, or two and they dry up fast. Just my .02

Any extreme summer tire will be work well, im just nitpicking

The zII tires are damn near impossible to get. It seems only tire rack has them as the starspecs. I don't feel like paying for shipping and then a shop to mount separately, hard to get a deal. I found a local place to me where I could get the re11a 's for 750 out the door, or the new re71r for about 100 more. The car will mostly be street with a few track days a year so I think I'm gna go with re11a's. Should be all set monday.

Print the page from Tire Rack and take it to a local Discount Tire if available.

They will get you the tires and mount them.

Last month I wanted a set of the previous model Rival's that were on sale at Tire Rack.

Discount Tire bought those tires from Tire Rack and sold them to me, at a good price.

I buy my tires from TIRE CENTRAL in San Gabriel. Always ends up costing less than tire rack overall with install and they usually stock tires. :icon_tup:

Didn't want to make another thread and this is the only active thread ive seen lol, anybody can recommend me tire sizes for my Works VSXX? They're 18x10 offset 0 & 18x12 -2, I got a shine auto feed style front & rear fenders, I don't mind stretch but not a really stupid stretch, 245/35 or 40s for the fronts & 275 or 285/40 will it do? Don't really know much about tire sizes... Thanks!

You might try making a thread for this in the drift section as those guys will probably be more familiar with fitting the offsets you are working with and the over fenders.

using willtheyfit.com-

Front- it does look like you will want a 245 or 255 up front and lots of camber on a +30 overfender. Outside of wheel will be flush with +30 fender and the tire stretch will keep the tire from cracking the fragile fiberglass up. Functional fitment for drifting.

Rear- looks hopeless to me with just +30 fender as wheel is +60mm outside the stock body line. With enough stretch and camber and flexing the over fender out you might get the tire inside the fender and the wheel outside the fender. Rear will be a "stance" fitment as it won't be functional.

Maybe use Pettit or Ronin rear flares instead since they are more like +50-+60mm? I know, probably not the look you are going for...

I just ordered a package from Discount tires...TSW Valencia wheels.... front 8x18 et 40 with Nitto NT555 255x35x18 tires....rear 9.5x18 et 40 with Nitto NT555 275x35x18. I already rolled the front fenders (car has OZ Monte Carlo 8x17 et 37 with Toyo R1's 235x45x17 on it at present, Eblach springs lowered the car about 3/4 inch, stock brakes)....I didn't want to roll the rear, it may be close! I followed the fitment guide started on this tread (excellent job...thank you Flyweight!!). Any feedback on this set-up? I'll post my results, it may help someone....this fitment thing can be overwhelming, if you want to avoid mods and mistakes! The Discount Tire package included free mounting, balancing and shipping...with rebates it came to $1345.

I was reading stickies and postings about tire and wheel sizing in this forum and other sources for more than 5 month. I even read this thread and Jimlab's 3 times from page 1 to the last, but I cannot be sure.
According to Jimlab's Spread Sheet, my set up will be fine, but I want to make sure the fitting.
I ordered wheels and tires from discounttire.com as previous member posted, and I read from somewhere that the member's setup fits without a problem. However, my set up is little bit different.

93 FD Stock body with Tein Coilover will be fitted after the wheels and tires.
Front: 18 x 9.5 +45 245/40/18 Dunlop
Rear : 18 x 9.5 +45 275/35/18 Dunlop

Anyone can tell me that would be fine with stock body with Tein Coilovers?
If I have to roll the fenders, it will be hard to attach the liners?

Thanks.

You should be fine, but you went a bit tall with the tires. A 255/35 would have been a better fit. the 245/40 is 7/10s taller. Your front tire is actually slightly taller than the rear. But.. Shouldnt have an issue clearing depending on ride height and camber settings. FYI I think a moderate roll on the front is almost a "must do", no matter what size. It doesnt take much effort and will save you a munched fender.

I was trying to get 255/35, but nothing in that size available from discounttires or americas tire,,,

Thanks for the quick reply!

I agree with Rxmfn7. the 275x35 sits nice on a 9.5 rim, maybe a 265x35x18... that will give you a diameter of 25.3" , the 275x35x18 has a diameter of 25.5" (stock is 25") so the diameters are close and so are the side walls. What type of rims did you get?

I am getting TSW,,,,,,
Thanks for the confirms.

:icon_tup:

What TSW wheel?

order tires from online. usually cheaper prices and shipping isn't bad, you skip out on paying tax as well.

255/35/18 is what I would recommend.

I've searched and cant find a definite answer ....

"feed" front fenders, Origin rear over fenders

i want to run 285 series tires on all 4 corners, and i cant find or figure out the right offset that would work front and rear, 18x10(.5) Evasive Motorsports | PH: 626.336.3400 Mon-Fri, 9am-6pm PST: M.C.O Racing Type CS
is the rims im thinking about using. with either R6 or R888 tires.

thank you oh so very much!

I could not get the TSW because of the offset.
My fenders and suspensions are stock, but I fit Konig instead.
Another problem that I have now is the front tires rubbing inner side of fender liner, right behind the coolant reservoir and washer reservoir.
I was using heat gun to reshape the liner, but no luck.
I know that the tires that I have is too tall with tall treads.
I will try to have coilover first to see if I can play with camber for now.
Thanks.

Like I said in my post.... fronts...18x8 (or 8.5) et40, tire Nitto NT555 255x35x18....rear...18x9.5 et40, tire Nitto NT555 275x35x18. This fitment worked perfect, no rubbing anywhere, lots of room for big brakes and coil-overs.... and the stagger looks good, not overdone!

You are absolutely right,,,
I went to Americastire and they will switch my front rims and tires for free.
I know the tires would be cheaper now because I was from Dunlop DZ102 245/40/18 to 235/40/18.
Now my spec is:
Front: 18 x 8 35, 235/40/18
Rear : 18 x 9.5 45, 275/35/18

Do I better get 18 x 8 with 45 offset instead of 35?
Guys at the americastire says that 45 offset would not fit and 35 is recomended.

I was trying to push 255/35/18 for the exchange of the front, but they said it is not the size for the 18 x 8 rims. (I know you put it on already, maybe they don't have those in stock.)

Anyway, can you please verify the sizes are good this time?

Please, consider that I will get coilovers after the rims and tires.

Thanks in advance!!!

The stock wheel is 16x8 with an offset of 50. So for an 18x8 (the exact same width as stock), wouldn't the ideal offset be 50, so as to keep the steering rotation center in the center of the tire? I would discuss this with the guy at America's Tire as 45 is closer to 50 than 35. Sounds to me like he is trying to sell some wheels.

That is what I thought because the tires, too.
I even showed him this thread that 18 x 8 with 255/35/18 fitment had been confirmed, but the guy at americastire looked into his screen and 35 offset with 235/40/18.

I was told a 255 wouldn't fit an 8in rim.... (255 fits an 8.5 nice)...another said .5in wouldn’t make a big difference on the rim, the wheel I wanted didn't come in a 8.5in so went ahead and tried the 255 on the 8in rim....it fit the car and the rim nice (et 40)...a good straight side wall....don't like to stretch a tire on the rim because it's too easy to rub a curb with the rim and the ride gets a little stiff. The stock offset is 50, so a 45 or 35 should work, the 35 will move the wheel 15mm closer to the strut than stock et 50 so it will give you more fender clearance, if you don't plan on rolling the front fenders this may be important, the 45 will be close but should clear a non-rolled fender. Either way there's plenty of clearance inside between the tire and strut if you want to go coil-over later. Good luck!

Kind of agree with this point, but 255 is too wide for an 8" wheel per tire manufacturers recommendations. Min width for 255 is 8.5". I'd go 235 on 8"

BACKWARDS! +35 offset will move the tire 15mm closer to the fender and further from the suspension vs. OEM +50 offset.

Thanks to confirm it again.
Yes, I do not want to roll the fenders.
Thanks, again.

Greg and Zdan,
So my front , 18 x 8 et 35 with 235/40/18 should fit without fender rolling and coilover, right?

Thanks.

You might rub without a fender roll. I was running 255/40-17s up front on +40 wheels, and I tweaked the fender lip. Fortunately didn't do anything major, I had the fenders rolled after that. Now running 245/40-17s which are a better fit on my 17x8.5 wheels anyway.

235/40-18 should be ~20mm narrower, which buys you 10mm vs. my 255s, but your offset cuts that to 5mm. And 235/40-18 is 1/2" taller than my 255s were.

I think you should go 225/40-18 instead. OEM type fit on 8" wheel, so not stretchy at all. Shorter and narrower, shouldn't need to roll fenders on 18x8 +35.

I have consider 225, but if you consider my rears are 275,,,,,,
I think I can talk to the americastire guys when they are installing it.
I should get the coilovers done before the install to make sure the fitment without fender rolling.
Thanks for the fast reply!

I wouldn't worry about the tire stagger. On 18x8" +35 the obvious tire size choice is 225/40-18 for the front. The effects of tire stagger on handling balance are often greatly overestimated, particularly for a street car.