Also run the next size up wastegate. Don't expect a 38mm wastegate to run 3psi on a S475.
I'm fixin to start on a turbo setup for my 2500HD and plannin on something similar to that S369 billet turbo for towing and a 60mm wastegate or dual 38mm wastegates. I live to start out at the lowest boost possible. And start tuning and crank it up slowly. There is alot more room for error in a mistake at 3psi vs 23 psi. Timing hickup or weak fuel pump or something crazy like that. I like to be safe than sorry.
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I'm fixin to start on a turbo setup for my 2500HD and plannin on something similar to that S369 billet turbo for towing and a 60mm wastegate or dual 38mm wastegates. I live to start out at the lowest boost possible. And start tuning and crank it up slowly. There is alot more room for error in a mistake at 3psi vs 23 psi. Timing hickup or weak fuel pump or something crazy like that. I like to be safe than sorry.
Sent from my SAMSUNG-SM-G870A using Tapatalk