Quote:
Originally Posted by CrustyNoodle
I notice that the original turbine is fully backed with a back plate but the back of the upgraded turbine is open. What is the effect of this difference?
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Basically Garrett chooses to use open back, while Borg Warner uses full back their newer stuff. Full backs can be more efficient but getting a custom reverse rotation full back BW wheel made is next to impossible at this point in time, and it wouldnt work in the Garrett CHRA anyways.