For a while now ive been hearing a different sound coming from my turbo. Ive heard a boost leak can sound like a vacuum cleaner under your hood and thats the best description of the sound. When I run my smarty on #2 and floor it from a stop I can only reach about 25 psi of boost and as my RPMs rise my boost is actually going down. when I roll into the throttle at 35mph I can hit about 29 psi and the boost rises with the RPMs. The noise seems to be boost related since i can start hearing it at about 20 psi. If I get on the throttle hard I can see EGTs as high as 1300 degrees, and I think they would go higher if I dont let off. Does this seem normal? With an intake, 5 inch exhaust and the smarty at its lowest setting I seem to be hitting some pretty high EGTs. By the way I also have a banks big head waistgate actuator. Thanks in advance.

 

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Boost leaks usually make hissing sounds. Check your Banks high ram might be coming from where it bolts to the manifold or where your CAC hose goes to it.