Things did not go as well as we hoped. This is with a 62mm turbo at 9psi. The 5.3L engine is stock, all parts except the turbo, injectors and the exhaust, and it has 167000+ miles on the clock. So its got to be a little tired.
But we did pick up just over 200 extra power and 257 extra torque.
Then the truck started to bang out on the 2nd pull and got worse on the 3rd and just stupid on the 4th.
Driving home the engine will not excelerate into boost. Pulled the plugs they look ok, wrong ones but look ok. Going to pull a valve cover tommorrow and see if I broke a stock spring.
The graphs below show the first base pull on this engine and then with the turbo.
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