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Originally Posted by IH8PVMNT
i was recently looking around at some fourms about the external wastegates and i ahve an idea of how it work... although not 100% would this be recommended on a stock turbo say if it were placed on the uppipe...and how well would i benifit from it? over my stock internal.... thanks!
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It will have gains on a stock turbo. One of the local guys picked up more HP at less boost than his prior tune when he switched to an EWG. Same tuner and same dyno the only thing that changed was the EWG setup.
Taken from the TurboXS website:
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The advantage of the External Wastegate is to help the turbocharger operate more efficiently. This is done by relieving a large amount of back pressure pre-turbine housing. Less restrictive turbine housing will allow you to run higher boost pressures which typically results in more horsepower and even the ability to run higher ignition advance if needed. It is common to see a 15 hp to 30 hp gain when going from Internal Wastegate to External Wastegate setups. When boost is held flatter throughout the rpm band, the result is higher horsepower numbers at less peak boost pressure vs. the Internal Wastegate.
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