IHI RX6 TWC77 turbo with larger ex housing
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IHI RX6 TCW77 turbo with larger ex housing
Has anyone on this board used the older apexi/power enterprise turbo with a turbine housing larger than the standard P20 and P22?
Just wondering if the P25 or P27 will open up for alot more horsepower potential from the largest TCW77 compressor at higher boost.
Im on the TCW77 -P22 now but im seeing alot of backpressure at 35 psi of boost.
Wastegate cant keep itself closed so boost is dropping to 30 psi at higher rpm even with the stronger wastegate spring (1.4 bar version i think it is that i have screwed in fully so initial opening is right before 28 psi).
Just wondering if the P25 or P27 will open up for alot more horsepower potential from the largest TCW77 compressor at higher boost.
Im on the TCW77 -P22 now but im seeing alot of backpressure at 35 psi of boost.
Wastegate cant keep itself closed so boost is dropping to 30 psi at higher rpm even with the stronger wastegate spring (1.4 bar version i think it is that i have screwed in fully so initial opening is right before 28 psi).
Last edited by MrTwo; Apr 11, 2015 at 03:29 PM. Reason: Topic should ofcourse be TCW77 not TWC...
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