Quote: Originally Posted by
yzguy128 
You can't go to another kit!!
You're a 20g legend lol.
Na, you will make the same if not more HP at lower boost.
What kind of gains from a ported TB, Spacer, and Manifold plus a 3" O2 housing?
Well it would be safe to say a 30-40 WHP gain in total. But the big problem is not flow as much as it is in efficency of the 20G at anything over 375WHP. I push 32PSI and the turbo is hurting..at that point every bit of flow makes power because the turbo is maxxed. But it is very possible to make 400WHP with the Hahn O2 housing..60mm or ported TB and stock mani (maybe even stock TB)? Only problem I have seen is fuel..at 32 psi I dump all I've got on my RC 750's, Perrin BB fuel rail, Aeromotive FPR, return line, Walbro 255, SAFCII. 380-400 is pretty easy and the 20G is maintance free for $1400 I have had NO problems with the kit for close to 2 years making deep 400's.
