I'm currently using the Maxrev BOV (came with the Maxrev kit), and I can BARELY hear the BOV when driving. Is this normal? I can only hear it when I'm trying to listen for it, and when I do hear it, its a slight flutter. Can anyone help?

 

nobody? it doesn't really sound like its opening up.

 

i had one on my car (nissan 1.6L) with a small T25/T3@6psi it had a nice sound to it. even gassing it in neutral/no load, it would "blowoff" it sounds good.

is it opening at all? hear any surge?

 

I know its opening for sure, but I just hear a slight flutter. And its only if I'm trying to listen for it. Maybe it needs to be "broken in"?

 

you can adjust the preload on the spring by turning the cap clockwise or counterclockwise....maybe that'll help. or u could try a different vacuum source. another option might be to order a different spring rate for the valve. it doesnt need breaking in, the piston and cylinder are machined out of dissimilar metals, they help prevent sticking.

 

the fluttering you arae hearing is probably the wastegate. thats exactly how i would describe the sound of my tial WG

 

so if its my wastegate going off, then my blowoff valve isn't blowing off at all then? I've never heard of a wastegate making a noise like that

 

Are you sure that fluttering isn't compressor surge? You might want to check your vacuum lines if that's the case

 

well, they dont need to be broken in and if it was not working properly there would be compressor surge. If you are here a flutter like a fast "woooowooowooop" noise then the BOV is too tight and letting the air back up.

Brett

 

how do i adjust the bov? just turn the top part where the line is attached to? Cuz I turned it a couple times, but no change in bov sound


[Modified by buh_buh, 9:43 PM 3/13/2003]