Quote:
Originally Posted by Pro Stock John
I think the ATI kits have a bypass valve? If that's not stuck open, your weird sound could be the bearings in the blower are messed up, and the blower wheel is not spinning or is spinning with difficulty.
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Yes, it has the bypass valve and wastegate. I just looked at it, all is connected, but it's hard to tell.
Doing some googling, looks like they do sell a race valve for higher HP applications, so it may be a known point of failure.
Padre