Vortech Vs TurboSmart Supercharger Blow Off Valve Comparison

[camminc5]

What is that flutter sound when you 1st let off the gas at 21 sec? Mine does that on the Turbo XS and Tial 50mm.. Is it compressor surge??

[sambarros]

@camminc5 No, it is real flutter: when you let off the throttle blade closes but the blower is still spinning at speed, so a pressure spike occurs, slamming the valve fully open. The valve springs back from that position, overshooting into a partially closed position, which once again causes a pressure spike, slamming it open. As this happens the valve opens and closes making the airflow vary, making that flutter sound. I think its pretty neat :)

[Danthevicman2]

where did u get those filters on the end of the bov valve?

[sambarros]

@Danthevicman2 Came with them, from A&A.

[fkumro]

I like the turbosmart bypass sound better then the Vortech.