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Old 2009-06-22, 11:57 AM   #4
sperry
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Real Name: Scott
Join Date: Nov 2002
Location: Portland, OR
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Car: '09 OBXT, '02 WRX, '96 Miata
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Quote:
Originally Posted by bigrobwoot View Post
I'm sorry if there is a better place to put this question, but can you help me understand how allowing exhaust gases to be diverted before the turbo helps create quicker spool? This isn't a flame, I've just always struggled understanding how ewg's work
From my understanding, it's not the external dump that makes the spool better (though I guess having a cleaner downpipe due to not having the internal wastegate plumbing might help). It's that the EWG's are just bigger/higher quality wastegates that flow better. Basically, with a better wastegate you can delay longer before opening it and still hit the target boost w/o spiking, thus improving spool up time.
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