Temp: 65 F, 580ft asl, 59% humidity.
I agree with Vince . The GT28 excels only in the low rpms...races starting at 3k rpms the results are even.
Also a 18g at 1.2 bar is even to 1 bar car unless we run race gas. The car pulls timing, so no use of running more boost unless you are running race gas.
Oh ...we forgot mention...Vince pulled hard on a modded Supra and Ducati 996.
its sucks all of our cars are about as fast as a flashed 997tt