· Premium Member
You know you're staring to ring some power out of your motor when you have to turn your airbox into Swiss cheese to keep the j-pipe from collapsing. On a hard pull I'd get about 2 seconds of hard acceleration then it would cut back to about half power. Put the data logger on and made a recording. It would get to about 21psi then suddenly drop to 10. Pulse width, throttle position weren't chopping back. Disconnected the hose from the boost controller to the waste gate. Didn't help. Put my camera on the firewall and calmed the wastegsye arm on the turbo. Sure enough, it would Crack about 1/2" then close backup right when the boost drop happened. Double checked my Crack pressure. Was still 9psi.