Lowering compression is out of the picture I am not taking that thing back apart, I wanted to run high compression from the start and knew what i was doing, i had the options in front of me when i had the engine apart, and decided to take the rout i went. Plus the size of the turbo will not effect anything 10psi is 10 psi its just that on that turbo its going to have more cfm meaning more efficient 10psi over a smaller turbo.
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