I have a pair of 03 575sci with supper cillers and 3.5 lbs of boost that were running about 24psi at idle and 29 at wot, that were running great. My mechanic told me we need to increase the pressure to 32psi at idle and 34psi at wot, and now they are hard to start (your have to give it wot to start) and wont turn the rpm it should. Also can any one tell me what stock boost should be.
thanks for the help
anthony

It's discussed on this thread
http://www.offshoreonly.com/forums/g...acting-up.html