my bov sounds pretty good if i hit 10 psi or so. but lets say i get 3-5 psi and let go off the gas it sounds funny. kinda like fluttering or something i guess thats the well known bad surge? cheap bov? or need to open it more? or what? first time messing with this so I need some input/help

thx for any help in advance

 

sub'd

 

is the bov adjustable? if not, you will need a lighter spring.

 

i beleive so i can rotate it both ways so ill say yep

 

Compressor surge

 

how do i fix that problem?

 

Loosen the BOV a lil

 

will try that. thanks

 

since its adjustable. run your engine at idle and adjust the bov to were the bov slightly opens at idle vacuum. once you get it there then put a litte more tension on the bov spring to completely close the bov at idle. this will prevent the bov from opening at idle. the engine will produce more vacuum coming off the throttle under boost (as compared to idle vacuum) opening the bov.

 

how about on a type h/rfl bov?

 

if its adjustable. follow same instructions. if its not then the spring will have to be replaced.

 

eh my bov is weird ima get a new one once i get new pipes done

 

Did you try what busa said? I'd try that before you switch parts

 

yep. gonna check my line on the bov tho and all before anything

 

Do you have just your BOV on that Vac line? Its always good practice to seperate the WG and BOV lines.

 

no its t'd with a sensor .ima put it on its on. and i dont have WG this set up came internally gated lol