Tire Talk For Boxster S

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Originally Posted by insite

then go for the 245/40. a 255/40 is getting pretty tall for a boxster. plus, one thing i noticed when i mounted these is that they run a little wide.

Yes I considered that. Here are the relevant numbers for the street tires I like in 17". I should add that my car is a weekend toy and not a daily driver. I use it for spirited canyon carving, Auto-X, scenic tours, and track days only.

Tire..............................Size............ .....Wear R.........Wt........Diam......Tread Width
Bri. RE01R ..............245/40/17..............140............27.........24.7”... ..........9”
Bri. RE050A P.P .......255/40/17..............140............27.........25”..... ..........9.5”
Yok. Advan Neova....255/40/17..............180............28.........25”..... ..........9.9”
Mich. Pilot PS2..........255/40/17..............220............24.........25”..... ..........9.5”

As you can see the 245/40/17 RE01R in this size is slightly smaller in diameter than stock and narrower by almost 1" compared to the 255/40/17 Neova. This would give me a slightly lower C.G. but I am not sure the improved tire compound could overcome a nearly 10% reduction in contact patch. Given the same tire size the RE01R looks like a slam dunk because it has great performance and is also very affordable. I must say I am generally very happy with my PS2's. I got them lightly used and cheap. They are a vast improvement over the Eagle HP's that were on the car when I got it.

There are still two guys that regularly outrun me in S/S class by 1-2 sec. Both former Top Gun fighter pilots who really know how to drive. Both are running Neovas. Like you I am always looking for an edge. Maybe if I can just clean up a few more corners.....time to reel those guys in.