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| Engineering/ Technical Ask technical questions about cars. Do you know how a car engine works? |
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#1
07-15-2003, 08:57 PM
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Wastegates and BOV's
Ok, i feel really dumb asking this because i used to know a couple years ago, but since then my memory has faded. What is the difference between a External Wastegate and blow off valve, and another question is if you get an external waste gate, you can remove the stock one and would you have to seal that hole for that plunger thing
 . if i messed up that last question and nobody understands it, then just ignore it 
__________________
Do you think anyone would be stupid enough to put a Turbo on a '99 Ford Taurus SE? You thought wrong! 
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#2
07-16-2003, 08:55 AM
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Wastegates regulate boost pressure by letting exhausts bypass the turbine.
Blow off valves or bypass valve prevents the compressor from hitting their surgelimit. If the compressor hits their surgelimit (which occur under low flow high boost conditions) the flow will go backwards through the compressor and making a chirping sound just like a WRC car. If you want to use an external wastegate instead of the internal inside the turbocharger you can buy a "fixed geometry turbinehousing" (without internal wg). You will probably also need a new exhaust manifold. To do this is unneccessary unless you have any problem with the internal wastegate.
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