The road racers on the vette forum run faster times at road atlanta on 275's square vs 315's square. Same compound.

Contact patch for a given weight is always the same square inches.


-'02 Dodge Viper Ex-World Challenge racecar
-'73 Duster, 6.1 based 392 hilborn hemi, tko600, full floater rear 9", Hellwig custom bars, viper brakes, built for road course