Labatt

I'm a complete idiot when it comes to this (among other things)... I've got 17" cups with sizes front: 205/50-17 and rear: 255/40-17. I'd really like to get PS2's but they aren't available in 205/50-17. Is it possible to use a different combination to reach the right size on the same wheel? If so, is it OK to do? And finally, are any of the sizes it could be available in PS2's? Here's a list from Tire Rack: PS2 Sizes.

If not, I'm leaning towards the S02A's unless people think the original Pilot Sports would be a better choice. I don't track or AX, but I do drive aggressively when I get the safe opportunity. I know this topic has been beaten to death so feel free not to answer this second question

Martin S.

can you stuff in the wheel well. I have an Excel spread sheet I would be willing to send you that allows you to plug in the various tire sizes and compute the rolling radius delta, front to rear. The key is to keep the delta less than 5%. When you go past 5%, the ABS computer senses "trouble" and turns off your ABS, not a good thing. Don't ask me how I know this. Send me a PM with your e-mail address if you are interested.

Regards,

touf

You could go 225/40 17 in the Front. This way the rolling radius would almost be the same and u could have less understeer.

See the following link from Michelin about the different sizes.

http://www.michelinman.com/assets/pd...otsportps2.pdf

StatmanDesigns

Please take no offense to this statement, but if you do not track your car or run autocross, then you do NOT drive aggressively. You may think you drive aggressively, and you may drive very fast on the street, but your tires will generally not be your limiting factor.

My recommendation would be for Kumho MX street tires with the fronts in a 225 width. Saves you about $500 over the pilot sports. Use this money to do a D.E. and really see how fast your car will go.

I suspect the difference in grip between any of the top tires will be more a function of tire pressures used. Most people do not rigorously sample and inspect their tire pressures (unless they are track junkies), and you will never see the ultimate grip from a top tire. It is also difficult to set the right tire pressure when you do not have track lap times to guide your experimentation.

Labatt

No offense taken - I agree. All I wanted to point out is that I don't care as much about road noise or comfort as I do about cornering and lack of roll. I hope to do a DE this year if I can get my insurance company to not be such a wuss.

GrantG

I 2nd the Kuhmo MX's in 225/45 and 255/40

Labatt

Tire Rack just e-mailed me and recommended 225/45 17 in the front. According to the calculator Martin sent me this looks like a slightly better solution. Anyone disagree?

Thanks!

StatmanDesigns

the 225/40 17 recommendation must have been a typo.

The correct size for your car is 225/45 17

Edward

225/45-17 is an excellent choice, if not the best alternative, to the stock 205/50.

And I, too, feel that high-dollar tires (like the MPS, et.al.) for the street are largely a waste of money when you can get 90% of the benefits with 60% of the cost with Kumho MXs (or the like), especially given the 993's propensity to go through rears at twice the rate of fronts. Just my opinion, but I know that I could easily spend the money I've saved on street tires on other, more worthwhile goodies for the car.

Edward