T-RO

I have some rubber vacuum tubing on my BOV right now (soft, I can squish it with my fingers). I'm getting that fluttering sound everytime I let off the gas (mabye compressor surge?). I'm trying to find out if the thickness of the vacuum line makes a difference. The vac line off the TB where my BOV is T-eed into it much thicker so i'm thinking of getting some of that if it will help.

T-RO

So does size matter or what?

MooreBoost

Im not sure if the vacuum would be strong enough to crush the line or not. Its pretty cheap at Discount, you could always try something different.

vaporboy12

maybe you need to adjust the spring on the bov

TurboBumblBee

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by T-RO &raquo;</TD></TR><TR><TD CLASS="quote">So does size matter or what? </TD></TR></TABLE>

ask any girl that and she will probably say yes it does..

but in your case no i dont think it does...

T-RO

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vaporboy12 &raquo;</TD></TR><TR><TD CLASS="quote">maybe you need to adjust the spring on the bov</TD></TR></TABLE>

I'm using a 1G DSM BOV

MiraiZ

I'd try silicon 4mm tubing....

StolenTeg

I used to use thin rubber line, It like those clear line for fish tank and you can squeze it. After the car is hot, i get weird BOV sound like soemtime i hear it blow off 2 time. The problem was the line was suck in by the vaccuum. so you need a line that hard, and wont suck together...

Bailhatch

good quality rubber vac hose is the way to go. Napa has good stuff that will definatly not crush even under 40+ in/hg vac. they have like 5 aizes by the foot.
I hate colored hose but I have seen one or two brands of silicon hose that might be good. Several of the cheapie hose brands do not impress me as far as wall stiffness.

T-RO

I switched to a larger 6.3mm fuel line for my BOV vac line and it made no difference with the fluttering.

gotboost95

It's a DSM bov so it sounds like that stock
i don't think there is a problem

T-RO

It "flutters" stock? So they all flutter?

g5r

do dsm bov use a gasket? my friends greddy type S flutters because he had silicone gasket and it didnt flush flat to the bov flange causing a slight leak.

T-RO

yeah, it uses a paper gasket

T-RO

I did notice after more testign that I THINK the BOV is blowing off more often now (a good thing). I mean it blows off at less throttle than before.