Right, yes, it's a coupe

Yes, would like to go square

 

The main problem (and there are a few) is the clearance at the steering knuckle in front, I'm running 18x9.5 +38 on my sedan and it's real close to the knuckle, there was a member (Intricate Detail) that ran 18x9.5 +45 and they barely cleared so there should be room there, but just a little. Also the 285/30/18s are almost 2" shorter than OEM tire diameter, you should stick to a 285/35 minimum and a 285/40 would be best. There are couple coupes running 10.5 +25s on 275s so there is room at the fenders, I think I'd run 275/40s just to have that 5mm wiggle room, you might need it

 

Thanks.

These will be track rims only. I would like to run Potenza RE-71R and I'm very limited on tire choice so 285/30 is the only 285 option. I'm not worried about tire height and actually being an inch lower to the ground will help with the handling of the car.

Bridgestone*Potenza RE-71R

Doing some quick maths:
9.5 +45 is 166mm back spacing
10.5 +25 109mm front spacing
10 +38 is 165mm back spacing and 89mm front spacing.

Compared to stock they would consume 14mm inboard and 24mm outboard

Going from what you suggest, it looks like the ideal offset would be a 10 +30 or there about to get clearance all around. I could run a 5mm spacer I guess without issues, that would help with steering knuckle clearance.

 

you could run a 9.5 +24 and have a better fit for a 275/40 which you could get in the RE-11

 

That would be a good plan^^^^ And if you're not locked in on the 'Stones you could run Nittos, they have these in a 275/40/18 NT01 D.O.T.-Compliant Competition Road Course Tire These (2) in a 285/40 NT05R D.O.T.-Compliant Competition Drag Radial Tire NT555R D.O.T.-Compliant Competition Drag Radial Tire And these Toyos in a 275/40 https://www.toyotires.com/tire/patte...petition-tires 275/35 https://www.toyotires.com/tire/patte...petition-tires https://www.toyotires.com/tire/patte...petition-tires

 

Unfortunately the SCCA and HPDE rules are very specific about 200 treadwear, so the stones are basically it.

Found these, they might work and can go to a 285/35 in the 19" which gets some more sidewall in the tire.

https://www.parts.com/index.cfm?fuse...r-D03001EA2610

However, from what I've found in the square setup thread, there is a lot of conflict about the necessity of rolling fenders at that amount of front spacing (97mm).

I see folks with 95mm saying they rolled fenders, up to 108mm without rolled fenders!

 

Rolling the fenders will gain about 6-8mm since it's already semi rolled, and rolling the fronts is pretty simple (should have came that way from the factory). If you can find those Nismos they would be a good square setup, the 10 +30 on a 285 should net a similar fit as that Simpsons coupe here which is a 10.5+25 on 275s so yours would be about 5mm inside his. https://www.myg37.com/forums/brakes-...ml#post4085533

 

Volk GT7

19x8.5 + 24 w/ 225/40/19
19x9.5 +26 w/:245/40/19

tires already on and 8/32 left

clear bbk ?

spacers or no and if not fender roll ?

coils will be going on end of week.

prefer flush but can tuck if need be..

im open but if its going to be alot of work I'd rather pass

thanks

 

I'm running 9.5 +38 on 245s and I'm just a few mm outside the fenders w/ my wheel edge but my tires tuck just fine. If you don't mind your wheels poking out you should still tuck ok, and if not, you can resort to a bit more camber.

 

Coupe or sedan? Not too familiar with multi piece wheels but the offset should be low enough to clear BBK. Either way the proper tire size for the front should be 225/45/19

 

i dont mind a bit of poke im ok with that. Im def not down with that whole hellaflush/stance thing.

thanks thats great to know.

Btw Brad thanks for being such a great contributor to this forum. youre always helpful.

 

i got a sedan, i dont get the choice since tires are already on the wheels and theyre pretty new.

id rather spend money on other stuff for now like a power wheels for my 2 1/2 yr old. lol

 

brad, will i need spacers or no ?

 

Volks have pretty good BBK clearance and a +24 should clear ok, and 93 makes a good point on the tires, they will be .6" taller than the rears, so I'd look in to replacing them w/ 225/45s when you can, or just get another pair of 245/40s and run them in front too.

 

Hello G fam! Ive searched the forums and still at lost about my fitment questions:/ so I have a 13 G37 sedan RWD and I'm looking at some work emotion wheels,Imy going to run staggered fitmentry my formula so far is 8x5 up front and 10x5 in the rear ? With either an offset of +35 or +22 what tires can I fit and will I need spacers,camber kit? I am lowered on BC coil overs Right now. Appreciate the help Fam this is my first car I'm actually really going all out for and want to do things right the first time(: