I currently have a set of 18x9.5 +22 FN01R-C wheels with Nitto NT01 275/35/18 tires on the car.

I recently purchased a set of 18x9.5 +15 RPF1 wheels that I will be fitting soon with either the 275 NT01s I currently have or some 255/35/18 Hoosier A6s (that run as wide as the 275 but have a smaller overall diameter). I'll have to pull (hammer) out the fenders in the rear more to clear them. I've already pulled the rear fenders about 1/4". It's going to take another 1/4" to clear with the +15 offset.

Also, something to realize, it will depend on how aggressively you drive the car. On the street, I never get rubbing. Auto-X however with the R-comps, I rub in the rear and have caught the front fender twice. I'm also running very stiff suspension and the car is fairly light at 2950 pounds. A heavier, softer sprung car would have even more issues with rubbing.

The +22 puts the wheels out wider then the fenders too. Past flush, not the best look IMO. But Up front, the wider track helps. This is why I would go +38 and a spacer, so you can keep the rear in check and within the fenders and then the front will be more aggressive.

 

Thanks, I think im gonna order a set of nt03's in a 40 offset with a 255/35 tire setup. I've been back and forth between these and rpf1's. There both a nice choice but since I can't get the rpf1's in sbc with a 38 offset i'm gonna get the nt03...

 

From what I recall, Robispec said the NT03 is a stiffer wheel as well and is better suited for road racing anyway, if that's the sort of thing you are into. The RFP1s flex enough under heavy high speed cornering that if you run low caliper clearance (like <2mm???) to keep the spacer small, the wheel can flex enough to contact the caliper.

The info is out there anyway if it's something you are interested in.

 

IIRC the +40 nt03 needs a 25mm up front to clear the front caliper. Don't know if you knew that or not OP.

 

I'm sort of in the same boat here. If I get 18x9.5 +38 RPF1's, what kind of spacers should I run in the front to avoid rubbing and brake issues? Also, should I get bolt on spacers or the slip ons with extended studs?

 

I think the +38 rpf1's have to run a 20mm or 25mm spacer as well up front. I am running the ARP extended studs with a 10mm spacer ATM. Those slip on spacers scare me somewhat.

 

Will it be safe to run the bolt on spacers l888apex?

 

Personal preference really, some people are fine running bolt on spacers and some aren't. It really depends on you and if you have "peace of mind" with them or not.

 

Who makes quality reliable bolt on spacers? I don't have a lot of spare time to install extended studs. I might go with bolt on spacers..

 

I ordered the NT03's on a 18x9.5 +40 from Gruppe-s. They gave me a killer deal with Hankook V12's 255/35 mounted and balanced. I also ordered Ichiba hubcentric 25mm spacers on ebay. As far as the RPF1's you can find more info on the Agressive Wheel/Tire Fitment thread but I think you need a 20mm.

 

I got blue rpf1s 18x9.5+15 with 245/40/18 BFG R1s..it looks pretty sick, i still have to do fender work though

 

Pics^^^ no teasing...

 

Has anyone ever run 18x9 +35 RPF1s on our cars?

 

From what a few others have said, you'll need like a 3-5mm spacer on the rear to clear a 275 wide tire on the 18x9.5 +38. The tire rubs on the lateral link other wise.

 

i run 17x9.5 +38 all around. i have seen the +15 side by side with my wheels and for some reason (design of the rpf1 wheels) they look almost identical. as with most other wheels, the offset makes a huge difference in looks, with the rpf1s, its barely noticeable, and I mean BARELY.

i like having the same offset all around so I can rotate them easily which is nice when you run semi-aggressive camber. i have the ichiba bolt on spacers with extended studs and a hubcentric ring. 20mm spacer up front is required, nothing in the rear except a roll of the fender.

the spacer in the front helps widen the front track and thus helps the car rotate, noticeable difference, handles great.

im lowered on crap tein s tech springs until I can afford coils, and run a 265 Z1 tire, absolutely no rub in the rear even with a full trunk.

spacers are a preference. if you can fit a wheel without them, thats great. i DD, AutoX, and track my car and have never had any problems with bolts backing out or loosening on there own. however I do check the tq on them regularly just in case, but no problems so far both on the street and the track. the spacer does give it a nice aggressive look in the front. again, each person will tell you something different tho.

take this with a grain of salt, but IMHO if your going to get a wide wheel (9.5) then you need to get a wide tire. 245 is just too small if your looking for performance. if you want the hella flush look then your golden, or if you willing to do evodave fender mod of lots of work. ultimately up to you, its your car.

feel free to PM me with any questions about my set up if you want. gl with you choice! cheers