Just wondering if the Banks LB7 wastegate will work on the new LLY motor? Or is that all part of the Banks six gun that we are so patiently awaiting?

Nope. The new motor has a VVT "Variable Vane Turbo."

I know it has the VVT, but I didn't know if they used the same wastegate.

Hummm,
Wastegate on a Variable Vane Turbo?
I thought variable vanes were supposed to replace the "bypass" control.

Have a happy holiday.

Yep, just as I thought.


The variable portion of the Garrett turbocharger incorporates nine airfoil shaped vanes operating on a slotted ring. The computer controlled hydraulic actuating servo rotates the ring to change each vane position in unison, which varies the velocity of the exhaust gases acting on the turbine wheel. This computer-controlled variable action provides real-time control over boost pressure, eliminating the need for a wastegate. A new set of diagnostic troublecodes are available to help troubleshoot a variable nozzle turbo or boost pressure related fault.

From - http://www.thedieselpage.com/duramax/lly2004.htm

Happy holidays everybody.

No wastegate on the LLY's.

Well, that answers that question. I'll admit I don't know too much about these LLY motors. Thanks for the help.