Help picking track tires
Thread Starter
Melting Slicks
Joined: May 2006
Posts: 2,590
Likes: 403
From: Nashville TN
St. Jude Donor '09
Help picking track tires
I have a '17 GS M7 and run 2-3 HPDE events every year (currently running intermediate). I've been running the MPSS in stock sizes and go through a set once a year at least. Now Michelin is discontinuing the MPSS and they are getting harder to find as replacements. I know the Cup2 tirea are an alternative, but I'm concerned with tread life, it's already bad with the SS tires. I recently bought some forge monoblock wheels (19/20 setup), so not looking to invest in new wheels yet. It's a street/track car and I'm looking for the best compromise that is relatively cost effective. What would you recommend?
Safety Car
Joined: Jul 2018
Posts: 4,303
Likes: 2,055
From: Margate, FL
I run Bridgestone Potenza S007A as a mixed use (street / track) tire. They have survived 7,000 miles and 4 tracks days so far. The shoulders are showing some wear but the tread itself is fine.
Pro
Joined: Mar 2002
Posts: 732
Likes: 138
From: Allen (DFW) Texas
The S007A is probably not a good alternative in this case since the widest 20" tire they make is a 275/35R20 and that's way too little tire for the rear. My suggestion would be to look at the Michelin PS4S. They don't yet make a 335/25R20 but I have their 325/25R20 on my Z06 and by my tape measure it's nearly the same diameter and width as the original Cup2 tires the car came with.
Thread Starter
Melting Slicks
Joined: May 2006
Posts: 2,590
Likes: 403
From: Nashville TN
St. Jude Donor '09
Thanks for the replies. I've never considered the 4S tire, I'll think about that some. Seems I remember hearing others running those on the track. I may have to do the math on running 18s all around to save in the long run. Problem is I always say this is my last track day, then after the event I can't wait until next time.
Any other suggestions?
Any other suggestions?
