SA/FB/Old School/4x110 guys help!

P71 · 04-30-2008, 01:49 PM

There's a huge difference between a 205 passenger car tire and a 205 all-out high performance trackday/autocross tire. Specifically how more "square" the racing tire is for maximum cornering grip vs. how "rounded" a passenger tire is for NVH (Noise/Vibration/Harshness, a measure of ride quality and comfort). The 225/60/16 Goodyear's on the g/f's 01 Grand Prix are rounded and have a softer sidewall then the identically sized 225/60/16 Toyo Proxes on the cop car, which are square shouldered, stiffer, and much louder. The cop car also grips like crazy whereas her tires are all-seasons.

04-30-2008, 01:49 PM	#1
P71 RCC Contributor Join Date: Feb 2008 Location: WA State Posts: 651 Rep Power: 18	There's a huge difference between a 205 passenger car tire and a 205 all-out high performance trackday/autocross tire. Specifically how more "square" the racing tire is for maximum cornering grip vs. how "rounded" a passenger tire is for NVH (Noise/Vibration/Harshness, a measure of ride quality and comfort). The 225/60/16 Goodyear's on the g/f's 01 Grand Prix are rounded and have a softer sidewall then the identically sized 225/60/16 Toyo Proxes on the cop car, which are square shouldered, stiffer, and much louder. The cop car also grips like crazy whereas her tires are all-seasons. __________________ Michael Pinto 2008 PDXCGP Drag Racing Season Champion 83 RX-7 GSL; 12A/5-Speed, Red/Red; 100% Stock - 16.072@83.39 01 CV Police Interceptor; 4.6 SOHC V8/4R70W, Dk Blue/Grey; K&N FIPK/RP Oil/Optima/Superchips/Flowmaster 40's/2.5" cat-back - 14.854@92.37 Read my Rx-7 Build Thread! http://rotarycarclub.com/rotary_foru...ed=1#post70955 Get on the new RCC 1/4 Mile ET List! http://www.rotarycarclub.com/rotary_...read.php?t=368 Vote for the ROTM! http://rotarycarclub.com/rotary_foru...play.php?f=125