So I'll be getting a bigger turbo soon, thinking about the 252et.. Anyways I'll be needing a BOV also, just wondering what everyones favorites are? I've watched videos all over YouTube but just can't make up my mind. I don't want any flutter sound and most videos I watched had some flutter or just a annoying high pitched whistle. Which BOVs should I avoid and any installation advice? Also I have upper injen charge pipe. Any other info I should know is much appreciated! Thanks everyone.

 

just installed my 252et! i personaly like the sound of the tial bov

 

Awesome how do you like it? And what bolt Ons do you have? Or even better have a picture of your engine bay? Lol

 

lsj-t ftw haha not finished yet

 

Badass, I can't wait to get mine

 

In for opinions as well

 

tial BOV is sicc i love it,
sound clip;

Pix: mine is mounted on the right side of the upper charge pipe for room and to add sum flare to that side of the engine bay:

 

Looks good. The sound clip didn't work but I'll look It up on YouTube.

 

it should be on my photobucket Sunshine Photos by Nfamous60 | Photobucket
but i cliccd it and it loaded.

 

I'm on a iPhone so thats probably why lol

 

holy **** dude, you have some major compressor surge

 

thought that was normal, i dnt kno how to get rid of the flutter(is that wut your talkin about?)

 

That is compressor surge. horrible for your turbo lol.

Compressor surge is when the turbo is forced to immediately stop spinning and spin backwards. its really hard on the bearings and will cause a turbo failure.

Flutter is when the BOV opens too late and you get surge+Blow off, its called flutterdump

 

it only does it under 3k rpm besides that it goes off normally at 4k, shouldi have gotten a lighter spring?

 

try a lighter spring and see if you still get it

 

i hav to buy one then i dnt think it came with alternatives i think theres a 9lb spring IF i remember right

 

what spring do you have in there now? 11 lbs is usually the one for the LNF IIRC

 

then that would be the one its a tial type Q, i got the same one a friend has the guy i got it from asked if i wanted a 10lb spring i remember that and i said no giv me wut my boy brought.

 

ok try that when you get a chance. 10lbs should elminate most of that surge. it probably has a 14lb spring in there now

 

if im gettn on the gas or highway driving and shifting its acts ust fine, could if be the fact that im not building boost.

 

what about just driving normally? it surges then too?

 

where do i get the spring from typing it in google and its selling whole new bov's

 

I'd contact the manufacturer and see if they will sell you just a spring.

 

normal driving yes it flutters, My paypal invoice says 11lb spring. I have a question will my new turbo be able to open it during normal driving? and will a lighter spring cause it to leak at higher boost levels?

 

huh, interesting. usually the 11lb spring is what stops the flutter. you may need a 9lb spring then.

usually the bigger the turbo the bigger the spring, the k04 might be too small for that BOV.