Tial 50 w/ centri
The bypass valve is open during part throttle to move air that the blower is moving. The blow off valve is not open and is causing air to surge out of the compressor. This is mild case of surging, when bov's do not open on super high boost cars, the compressor wheel tends to change shapes
A BOV and Bypass can be used on a Turbo setup....... but not on a SC.
Use a Bypass.
I know exactly what your talking about... had one on my 1st setup 5 yrs ago.. a Tial... sold it and went with the Vortech Mondo.
I know have the ATI Race Bypass on my Turbo setup and LOVE It.
Kyle
The bypass valve is open during part throttle to move air that the blower is moving. The blow off valve is not open and is causing air to surge out of the compressor. This is mild case of surging, when bov's do not open on super high boost cars, the compressor wheel tends to change shapes

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A BOV and Bypass can be used on a Turbo setup....... but not on a SC.
Use a Bypass.
I know exactly what your talking about... had one on my 1st setup 5 yrs ago.. a Tial... sold it and went with the Vortech Mondo.
I know have the ATI Race Bypass on my Turbo setup and LOVE It.
Kyle
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The reason they sell the springs for the bov's is to combat the intake manifold vacum, ex having 10in of vac on the top side will suck the valve up, they need a certain spring to resist this, but under fast decell or throttle lift it will have more then 10in so it will open, along with however much boost it will open FAST.


If you are serious that is. 
