TsukubaCody

The Top Fuel car? Breh, if this is a street car that isn't even a little relevant.

thomsbrain

I bought some J's front and ASM rears and by my calculations the Apex Mustang-specific 18x11s will likely fit with 295 square, perhaps with a small spacer. Bore and stud spacing are both correct for the S2000 on those wheels. You really need to shoot for high +40's for the effective offset or you are going to rub like crazy up front, so you'd want to experiment with 3mm and 5 mm spacers. Space is going to be TIGHT on the front. Luckily going to 18s gives you a little extra suspension clearance. The only other options I've found are custom wheels, starting with Forgestar as the cheapest custom option (but a Forgestar famously broke on a tracked S2000). Forgestar is not to be confused with big-baller Forgeline. Anyway, that's my plan when I get around to painting the parts and can afford new wheels and R-comps.

Note that in your example pictures, those are probably 255 tires, crazy stretched. So whatever offset that guy is running is not going to work with a properly sized tire. It's also obviously not a tracked car (or at least not tracked aggressively), so he can get away with a more aggressive fitment since he doesn't drive the car hard. A fitment that "works" on the street will still destroy a fender and tire when you dial in an armful of opposite lock mid-corner.

s2000Junky

No you cant. That is way too aggressive even for CG rear fenders. And just fyi, that pic above of the red car with CG rear over fenders and J's fronts is clearly not a square wheel set up, they are staggered in either just offset or both in widths combined. There is far more room on the CG fenders then you will be able to accommodate on the Js, so I would not go with this fender combo if you really are set on a square fitment, or the fronts will poke and rears will look sunk in. Feel free to PM me if you want some suggestions on a good looking functional fitment based on the fenders you plan to go with. I personally run the J's fronts and CG rears like the red car pictured, and run a 10" 255/ 11.5/315 stagger. More rim and tire could be run with that set up for less aggressive stagger, but depends on what you want to spend and what's available.

V3rtigo

Not running over fenders but I'm 18x10.25 +63 285/30 in the rear. No rubbing only a mild roll with 2.5deg.

Front is 18x8.5 +42 255/35 with downforce fenders. I'd think it would be hard to fit anything larger than a 9.5 up front with the wider fenders without stretching tires. I've been meaning to try the rears on the front to see if they interfere with anything but haven't gotten around to it. The car has way more grip right now than I'd ever need.

TsukubaCody

Dude, 255 fit up front with OEM fenders, OEM + 35 mm will definitely take 285 if the wheels are purchased wisely.

riceball777

Bullwings

Agreed.

I ran 255 on 17x10 +52 on stock fenders with a flat roll and a mild pull - on a track car - completely functional.. NO arm or suspension rubbing. The challenge going wider up front is retaining the higher +45 or higher offset while avoiding inner rubbing on arms and suspension. Going 18" opens up quite a bit of room. It's why Urge specs their CCWs in 18". They have designs for 9.5 / 10 / 10.5 / 11.

s2000Junky

Just a tip from experience. The J's front fenders is 35mm over stock. A rolled and pulled stock fender will get you another honest 20mm room over stock for a 255 /10 wide wheel in the proper offset ie 10 +55-50. That means the J's fenders only net you 15mm more if you are coming from the max stock set up as layed out. These fenders do not give like metal ones, so there is no fudge room or coaxing, they will just crack if you get it wrong, so its more imparitive that you dont go too aggressive. Also the shape of the lip on these fenders actually is somewhat convex in shape, so you have less room then it looks. A 11/285 would be pushing it and wont allow you to lower the car as much as you would like. A 10.5 wide wheel with a 275 would be my recommendation for a max "functional" combenation.

I have managed to run a 11.5"/315 on stock cut and pulled rear fenders along with some inner work due to necessity, this is not standard max however, which would be a 11" wide wheel with up to a 295 at proper +65 offset given the standard rolled stock fender and slight pull depending on tire brand. Again a modded stock rear fender gives you an honest 20mm out clearance over stock, which if you are currently utilizing means the 75mm CG rear fenders give you 55mm more outer clearance. I run my old 315 11.5 +63 stock set up on the CG rear fenders with a 30mm spacer effectively making it a 11.5" +33. This is a good looking and functional fitment with roughly 5mm outer fender clearance at suspension compression with my camber alignment so that should be your target, giving you just enough play to adjust alignment without rubbing issues. If you want to go with a wider wheel which you easily can with these fenders, then adjust the offset to compensate with that added width to the inside. 12.5" is the max recomended wheel width for a 315 just fyi and most Will have a decent tire stretch at that width. Mine sit square on a 11.5. You could feasibly do something ridiculous in the rear running up to a 12.5" 335 if you wanted, but keep in mind the severe increase in outer rolling diameter over stock, effecting the gear ratio in a big way, and not to mention the weight. For big boost guys this might be bennifical. 315 is where I choose to stop.

All that asside, you have some choices to make on staggard or non staggers. Obviously running a non staggers set up with these fe ders is really going to limit your overal grip potential because of the front so inwould recommend staggered. If you go with a typical good wide option for the rear such as a 295 on 11" wheel then you will want a target offset of +25. For the front a 265 will Keep the overall tire diamiter consistant with the rear 295. You could do a 275 and will be cllse enough. Either way I recomend a 10.5 wide wheel max and offset of +30 for the Jr's front fenders.

Hope this help everyone who needs some clarification. These fenders seem to becoming a popular combenation choice.

DavidNJ

What tires are available to run 315/335 in S2000 diameters? Even in 285 and 295 the selection seems very limited. These are approximately the same sizes that came on Supra Twin Turbos (235/45-17 F and 255/40-17 rear. Back in the day 265/35-18F and 295/30-18 R were popular. Now few tires come in those sizes.

s2000Junky

I run 17". They are a marginally lighter combination and tires are much cheaper. Obviously those come in 255 and 275 sizes and 315. Tire of choice in these three widths are the nitto nt05 summers and NT01 R comps as well as Toyo R888R. There may be another option or two in either 17 or 18" but cant think of off the top of my head. Im a pretty die hard Nitto fan due to the very firm prescise sidewall construction/handling characture, overall grip performance and minimal cost. Great all around value.