I finally got my engine going and tuned yesterday, made 382rwkw on only 17.5psi boost. Had issues with boost control, if i tried to boost it over 17 psi it would just go crazy and make 25+psi, tried a few different ways using top and bottom port on the wastegate, but had same problem each way. Im currently running a 10psi spring, i will try the 15psi spring i have.
Any one know if using a 10 psi spring to try and run 20psi via and EBC can cause this??