Tried out some 20" wheels today.

[vatdevil]

Originally Posted by blown871

Question: What would you run on the street and light track in the 18" size? 335/30 some brands not available in that size and you are only left with more of a track tire selection.

I run 15 inch Mickey Thompson SR for street and 18 inch Nitto NT01 for track/autocross. The tires are close enough in height so that no suspension adjustments are required. The NT01 is very streetable and I drive to events on them. The SR I use for long steet drives.

[Ant]

Originally Posted by henrik

The rationale behind the 17" is the brakes... the 15" do not allow strong disk brakes - hence the compromise with halibrand style 17".

I have seen / and droved - old cars where the brakes got too hot = no stopping power at all

I live with the 17", but love the 15" - billboard or no billboard

IBTL

Henrik,

I agree with your comments, raced my FE 427 Cobra on 15" wheels with the biggest brakes, special pads, air ducts etc and still ran out of brakes. My current 7 years build has 17" x 10" wheels 13" rotors, 6 pot AP Racing callipers front and rear 17 x 12" 12" rotors, AP 4 pot rear, I don't intend to run out of brakes and I can't be bothered with the limited selection of 15" tyres available here in NZ. Love the look of 15" wheels.