Not sure if you saw this posting, but I managed to shred a new set of 19' Michelen PS2s in one weekend of autocross school. Apart from becoming a better driver (!), I continue to get advice to buy a set of 18' wheels and look at running some kind of R-compound tires, and since it looks like I am going to keep tracking as well as autocrossing, this is probably going to be more satisfying as well as cheaper.



So, I'm looking for advice on wheels & tires.



One possibility for wheels is the standard CS 18's, which I think K-man S declared to be particularly light-weight. Tirerack recommends BBS RS-GT for the CS, though not sure whether the 8' or 8.5' width would be best for the front. Will these be compatible with TPMS; does it require sensors to be added to the wheels?



For tires, many people seem to be running the Michelen Pilot Sport Cups, which I've heard are very good on the track but less so for autocross. The Kumho VictoRacers seem to be better for autocross, and both can be driven to the track, which is almost a must for me at this stage. Presumably both brands should fit the wheels I've listed, or can you start to mix-and-match wheel sizes & tires if you move away from strict CS compatibility?



Anyway, all advice welcome. Thanks!!

Edited by - johnw3d on 07/26/2006 09:50:21 AM

I don't know how to address the tire problem; but if I was going to change from the factory ones to save $$, then I would think about getting one of those oil sump extensions installed to protect the engine from any possible oil starvation.

__________________
*******************************
The search tool is your friend. It is very
likely that your question has already been
answered countless times.Very,very likely.
*******************************
*******************************
Cayman S - a portable amusement park

- 2006 Cayman S
- 2003 Dakota SXT
- 1963 Studebaker Avanti, R2, 4-Speed
*******************************

LL

Very good point. I've already had one oil-related problem at ButtonWillow which tripped the ECU into limp-mode and may have been ameliorated by the sump mods. I think Mantis Sport found they had to do this for their CS race car.



On the tire front, I just discovered that Kumho doesn't have any comp. tires for 18' wheels, at least on Tire Rack. The Yokohama ADVAN A048's look like a good alternative.

the v700's come in many sizes for 18' rims. Pcups don't get hot enough fast enough for autoX.

__________________

Craignyc
Cayman S 2006 - Sold
Boxster 2001 - race car and current track toy.
www.nycs4.com/cayman_track_times.html