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Old 2009-06-22, 09:10 PM   #5
bigrobwoot
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Real Name: Rob
Join Date: Jun 2008
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Car: 2019 CBS WRX Premium
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Quote:
Originally Posted by GrimmSpeed View Post
An External Wastegate (EWG) allows exhaust gases to be diverted prior to entering the turbo; thus creating a quicker turbo spool. GrimmSpeed’s EWG has a larger diameter than the stock internal wastegate; this allows the exhaust gas to be released faster, which improves boost control, maintains maximum boost longer in the rpm range, and extends the life of the turbo.
That first sentence is what confused me, but I think I see what you're saying. Since it is more efficient at bleeding off excess exhaust gases, it doesn't need to start doing so as early as stock, so more exhaust gas mass and velocity get to the turbo sooner, creating quicker spool than stock..? Or am I still missing it? Feel free to move this to somewhere other than Grimmspeed's thread, but I figured the clarification would give them a free bump, and kind of a free advertisement
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