Wouldn't the fastest tire you can buy through TR be the hoosiers A6?

Fair enough, I should have stated a sub-$200 tire. I just noticed they list a 225/50 RR though...

I use 205/50/15 RRs on 15x9 6UL. It fits. The RR is wide for a 205.

What about the BFG R1 S?

Anyone try the NS2R from Nankang? They are offered in a 180 street and 120 track UTQG rating.

I don't think they are in the US yet, a supplier for my racing series is advertising them for early spring... if spring ever arrives

I figured this would be the case, thank you. Any chance you've got pics?

225/50 RR's are $168, R1s's are $178, how much faster are they?

205/50/15 RR's on 15x9 6ULs

Judging from the OP (which is Savington's experience), they're at least a second quicker than the RRs.

R1-S should be as fast as an A6, and therefor quite a bit faster than an RR.

RR should have better life.

225/50 is a bit tall for a miata?

+1
I’m also interested as I too have TW140 limit in my TimeAttack class

Just ordered some of these (for the price, why not) and I'll report back. Autocross, heavy daily duty, and lots of backroading. They are 205/50's on 15x7 Konig Rewinds. I know, not the best size wheel but it's what I have for now. I'm really just hoping for a lot more braking performance, but my biggest braking issue is FM Stage 1 suspension making the ABS kick in early when coming off the throttle and straight to the brakes hard (so lots of autocross situations). I'll post alignment specs also. Need to redo mine.

Question for you guys, what should be faster on the track:

-NT01 in 225/45/15 on a 15X9, RC1 in 205/50/15 on a 15X9 or RC1 in 205/50/15 on a 15X8 with a stock power level NB?

What would be your choice?

Thanks for the input.

from my understand a 205 RC1 ~ NT01 in laptime, but [the RC1 is] slightly more desirable due to other characteristics. (not personal experience, just copy & pasting)

And Charles is running a Toyota mr-s, no need to answer him ;-)

I'll answer if he sends me his power steering pump for free.

Hahahahaha

Thank you SADrider!

Hey Charles, funny to see that you wish your MR-S would be an NB....haha. I'll be trying the 205-50-15 rivals on 15x8 wheels. I'm confident that setup could be could in time attack, but since you don't get points by running 225-45-15 on a 15 x 9, that should be faster in every way.

Ben

Michelin Competition Slicks would be at the top of the fast list.......

Do they come in 23ish inch diameter sizes?

Also where do the AVON non-dot slicks fall on that list? If you needed to do 1 stupidly fast lap the extra stiff construction and hill climb compound tire is about 2 seconds faster than the softest hoosier Rxx non-dot slick, but they'd probably be over heated by the 2nd lap. But where do the more reasonable for road racing compounds fall?

Spoolin2bars and I ran some Michelin SB9, Viper Cup take offs at HHR in 2011. They were very well behaved and had tons of grip. We ran Viper Cup fronts 275? on 18x10's. They had so much grip that they were messing with the Torsen T2R and tripping out the traction control computer, even with it disabled. When I posted my feedback none of the Hoosier guys could relate :) Now years later people with heavily modified TT Mustangs are having problems, my experience was on a bone stock Boss, excellent tire.