Quote Originally Posted by v8killr
900whp is attainable! 36psi netted 883? Pretty nice man! I was comparing the t76 he is using to a friend of mines gt4294r dyno and it looks as if BOTH turbos spool CLOSE as hell! With the 42r and 32psi we hit 860whp. Not to shabby! Is the t76 a dual ball-bearing? Because that thing spools FAST!
Ok this is Peters Dyno



Now this is Joe simpsons GT42R dyno chart