Quote:
Originally Posted by luigi90210
lol, you're not alone with that one XD
i use to do the same all the time but i kept getting corrected by friends so i started using BPV and BOV
ok im still a bit confused about it but i get the basic idea, so even though the valve is the same internally, it will function differently on a supercharger setup vs a turbo setup?
could you in theory have a BPV designed for a turbo to work with a supercharger assuming everything fits? or would you need a different valve?
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It's the same. The key you're missing is after the boost as been released on a turbo setup, generally there is no more boost being generated and the valve closes. The valve is "tuned" so that it requires a certain pressure differential between the manifold and the cold pipe in order for it to open. This is controlled by adjusting spring pressure inside the valve.
With the supercharger, boost is continuing to be generated at idle, so that differential is such that it holds the valve open slightly to release that pressure back to the pre-S/C pipe.
Get it?