M90 supercharger bypass valve question

[frdhtr]

Hey guys I've got a very similar setup to the ecotec on my vp commodore with a eaton m62 charger just wondering if at the front of the manifold between the charger can I attach a blow of valve or when I back off the throttle does the boost recirculate through the bypass valve? I'm thinking I could block it off so it boosts earlier and will blow boost out the poop poop valve when I take foot of the throttle but not really sure? Cheers

[VT-565]

The bypass valve is exactly that, it usually uses a diaphragm to open/close the valve depending on manifold pressure, looks pretty much like an internal wastegate on a turbo.
I guess you could plumb a BOV in and it should work, but it would perform the same function, just give you a stupid noise under the bonnet.

[klampy]

i think you would find that if you replaced the bypass valve with a BOV that when you shut the throttle the vacuum created would open the BOV and it would suck air, and then rev up uncontrollably. unless you had a mega spring in there and then it would only blow off under big rev liftoffs, and also put premature wear on the charger being under load all the time.

[frdhtr]

Lol stupid noise under my bonnet, haha yeh I wouldn't mind abit of 'show' I was under the impression that if I made it stay closed I could make the boost go out the bov, the hardest part would be to fit it between the manifold and charger, I would really love to get a boost divert plate to run a cooler and bov but as of yet I havnt found one because I am pretty sure they are different then the m62 that I have.

[frdhtr]

Also if the bypass valve is faulty would this restrict boost?

[VT-565]

Also if the bypass valve is faulty would this restrict boost?

If the bypass valve is not closing properly then boost will be recirculating through the charger