987S R compound choices.
06-06-2005, 10:50 PM
#1
Nordschleife Master
Thread Starter
987S R compound choices.
I did some research, and here's what I came out with.
Tires---------------Size---------Diam-------Revs per mile
OEM PS2----- 235/40 YR18-----25.4"----------819
----------------265/40 YR18-----26.3"----------790
Toyo RA1------225/40ZR18 ----25.1 ----------827
-----------------275/35ZR18 ----25.55---------812
MPSC----------235/40 YR18 ----25.4"----------819
----------------265/35 YR18-----25.2"----------831
KumhoV700--245/35 WR18----24.6"----------840
----------------265/35 WR18---25.1"----------825
DunlopSSR----235/40 ZR18----25.2"---------830
----------------265/35 ZR18-----25.1"--------825
What adds to the difficculty is the PSM which is now std on the 987. Too far off the OEM specs and it may go crazy. The Toyos seem to be the closest in specs, but may encourage more understeer with the size spread.
Opinions??? Thoughts?
__________________
Tires---------------Size---------Diam-------Revs per mile
OEM PS2----- 235/40 YR18-----25.4"----------819
----------------265/40 YR18-----26.3"----------790
Toyo RA1------225/40ZR18 ----25.1 ----------827
-----------------275/35ZR18 ----25.55---------812
MPSC----------235/40 YR18 ----25.4"----------819
----------------265/35 YR18-----25.2"----------831
KumhoV700--245/35 WR18----24.6"----------840
----------------265/35 WR18---25.1"----------825
DunlopSSR----235/40 ZR18----25.2"---------830
----------------265/35 ZR18-----25.1"--------825
What adds to the difficculty is the PSM which is now std on the 987. Too far off the OEM specs and it may go crazy. The Toyos seem to be the closest in specs, but may encourage more understeer with the size spread.
Opinions??? Thoughts?
__________________
