My turbos used to not go pass 7lbs. of boost now after making a hard pass the motor sounds different and the boost goes past 10lbs.! I let off quick and babied it back to the trailer. One of my hoses (the one that connects the carb. to the turbo) is very soft and a little crimped. There is no wierd smoke coming out or anything, just sounds a little off.
Thanks in advance from a new turbo owner.
I had that same thing happen to my Schiada with a blower. Turns out that I had broken a rocker. Check the valvetrain for starters as a drop in 1/8th of your cylinders will definately show an increase in boost, not to mention cause a "change in sound."
Originally Posted by n8dawg
Haven't had time to dig into it but it sounds like its running with some loose spark plugs,wires or something.
So it sounds like it's got a dead hole or two??? check your valvetrain.