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Power-Adders
Traction Control Question on Boosted Applications
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<blockquote data-quote="Sizeth3" data-source="post: 15253107" data-attributes="member: 95222"><p>I don't know that's why I asked. Wouldn't closing the throttle at high rpm, example spinning at 7000 rpm, create compressor surge? So by having a bypass valve on my system, it won't hurt anything? Here is a blurb I found about compressor surge, which basically aligns with what I was wondering:</p><p></p><p>"Compressor surge is a problem that affects all superchargers and develops when the supercharger is creating boost, but the throttle shaft is closed. This condition can occur under deceleration or while shifting between gears, and can cause the car to sputter and chirp. Under surge, the compressor forces air into the closed throttle body until the pressure inside the throttle body is higher than the amount of pressure being created by the supercharger, and the air pops backward through the supercharger. At that point, pressure is released inside the throttle body and the compressor forces air back through the scroll and into the throttle body, which again has nowhere to go, and the process repeats. While surge normally is not highly damaging to the engine it is certainly annoying and can cause damage with time. To eliminate these problems under surge conditions, a bypass valve (sometimes called an anti-surge valve) is used to release the excess pressure. The bypass valve is actuated using intake manifold vaccuum, which opens the vent valve and releases pressure in the air-intake. Air is either released into the atmosphere (blowoff valve) or recirculated back through the supercharger compressor (bypass valve)."</p></blockquote><p></p>
[QUOTE="Sizeth3, post: 15253107, member: 95222"] I don't know that's why I asked. Wouldn't closing the throttle at high rpm, example spinning at 7000 rpm, create compressor surge? So by having a bypass valve on my system, it won't hurt anything? Here is a blurb I found about compressor surge, which basically aligns with what I was wondering: "Compressor surge is a problem that affects all superchargers and develops when the supercharger is creating boost, but the throttle shaft is closed. This condition can occur under deceleration or while shifting between gears, and can cause the car to sputter and chirp. Under surge, the compressor forces air into the closed throttle body until the pressure inside the throttle body is higher than the amount of pressure being created by the supercharger, and the air pops backward through the supercharger. At that point, pressure is released inside the throttle body and the compressor forces air back through the scroll and into the throttle body, which again has nowhere to go, and the process repeats. While surge normally is not highly damaging to the engine it is certainly annoying and can cause damage with time. To eliminate these problems under surge conditions, a bypass valve (sometimes called an anti-surge valve) is used to release the excess pressure. The bypass valve is actuated using intake manifold vaccuum, which opens the vent valve and releases pressure in the air-intake. Air is either released into the atmosphere (blowoff valve) or recirculated back through the supercharger compressor (bypass valve)." [/QUOTE]
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Traction Control Question on Boosted Applications
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