i have figured out that my engine takes 33lb/min at 8500rpm and 15psi of boost
and 21lb/min at 6000 rpm and 15 psi boost

i think that the t04e 50trim compressor would be the best because the spot when i get to 8500 gets in the midle of the map

http://www.turboneticsinc.com/cm_e50.htm

am i wrong?

 

It would probably be a great mix. The 50trim can do 400 easily, and has a huge 'island' above 78%. Something like the super60 T3 would be too small, and others like a t3/t04b s-trim that come in-between aren't as efficient. People always want to go the 57trim, but thats rated at 49lb/min, whereas the 50trim is rated at 47lb/min - tiny increase when you also consider its main efficiency island is smaller, and only 76%