DSM BOV Flutter
What would cause the BOV not to flutter?
More story: On my Prelude... the 1g DSM BOV would flutter at like 0/1psi. Car got wrecked. Took BOV off... fast forward 6 months, and used it for my b16a turbo setup. The BOV doesn't flutter at all and I can barely here it when I let off the throttle under boost. For a while I was hearing compressor surge but it seems to have gone away. I moved my vacuum source for the BOV directly to the intake manifold... and still nothing. Any ideas? |
Re: DSM BOV Flutter
it shouldnt flutter if you have it to a good vaccum source, such as the FPR or a vaccum manifold. The flutter you hear is usually compresor surge.
Why dont you hear it blow off?? Are you boosting? Do you have any boost leaks? BOv too lose? |
Re: DSM BOV Flutter
is the BOV crushed too much? And can't blow off?
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Re: DSM BOV Flutter
pretty odd, yesterday I put my dsm blow off valve on my current setup and it sounds like its fluttering as well. I've used tons of these things on past setups and not once has it sounded like this.
I'm gonna crush the fucker and change my source. |
Re: DSM BOV Flutter
mine fluttered quite a bit. but my vacuum line was pinched. stupid me haha that ---- would reach but i made it work and it bit my ass in the end. got a longer hose and it was fine go figure ;)
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Re: DSM BOV Flutter
If you DSM BOV is fluttering, that is compressor surge, you don't have it tee'd into the intake manifold right.
Diaphram style BOV's don't flutter, pull style like HKS SSQ, or TIAL's will. |
Re: DSM BOV Flutter
i had mine tee'd with no problem :)
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Re: DSM BOV Flutter
Clean and oil the unit.
Chk for free movement with your finger. Hook it up. Hook up a gauge to yoru vacum source confirm your seeing a vacum. Then hook up gauge. It should work. If no dump the gauge. Experiment with diffirent vacum sources. Manifold acted up for me. From the Carb worked. |
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