Loss of boost and power any idea's

[ejnight]

I have been running 10lb boost and it was running strong clutch started to slip just mentioning it to get all info out.boost down to 5lb one day. I checked for leaks and found nothing. I changed out the adjustable valve. got it back to 7 lb but it will not go any higher. what have I done?

[ejnight]

Anyone?

[eyagel]

you spun a muffler bearing. :looksaround:

[nova15566]

check yoUr charge pipes. when i blow an ic pipe my boost goes from 13psi to 5 sometimes leaks are easy to miss

[mops]

check for leaks on the intake and exhaust sides. check wastegate, whether it opens/closes poperly and whether the diaphragm is ok.

if clutch is slipping you might get no/less boost because there's less load on the engine.