What size would you recommend as a fit for this platform?

I'm looking on their site and don't see any of the 'standard' sizes guys track these cars with. Then again, maybe they aren't all listed there?

Depends on the application.

20% off on Ebay today....

dat eBay coupon.


A set of Falken RT615K+ tires come to $452. 255/40 though.



Couldn't find the SX2 tires, Mike.

255/40 will work beautifully on a 9" wheel.

Given that you mentioned just moving from novice to intermediate, I'd still recommend a "less sticky" tire. Something like an RE71R, Direzza ZIII or RS4 is just going to "cover up" poor driving.

While I certainly don't consider MPSS's a dedicated track tire, it's a great tire for learning, so if recommend sticking with it. You'll benefit greatly from a tire that makes noise, provides plenty of slip angle and isn't sticky enough to cover up mistakes.......like pushing/understeering hard in a corner.

FWIW, I just ran a 1:57 (by no means "fast") at Palmer on 225 Conti Sports. I'd imagine with your set up, you should be running 1:52-1:53.

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20% off Ebay??? I missed out :(

I'll also toss in recommendation to try the Falken 615K+.
I got them few months ago when America's Tire had the $75 gift card deal, and replaced worn out MPSS that I had been DD.


To me, they are just as comfortable as MPSS for DD and the grip levels are excellent.
And they don't have that unbearable howling/humming sound that RE71R makes on the street.


I also have the RE71R on Enkei for autox, but have been too lazy to swap and ran the last 2 autox with the Falkens. I was very pleasantly surprised by the Falkens performance!


Falkens don't seem to chew through the rubber like the RE71R does, and for my amateur driving skills, the Falkens seem to be much more forgiving than the RE71R.
I think I actually feel more confident with the Falkens because it's so forgiving, where as RE71R feels more razor sharp.


For the price, I'll be using these Falkens for my DD since they are good for autox too on those lazy days.