Flutter or BOV ?

[1996ek1]

Hey guys, i know about flutter and all but...

Why do S14/15 always seem to have a really loud, and long flutter sound ? Is it something to do with their setup because im really wondering about this...

Flutter often seems to be quieter, and short, but all S14/15 i see seem to have it really loud and prolonged....

[tekung89]

maybe their bov is tighten? not sure =) good question lol

[technify]

Think you should ask a nissan driver or on NS. no joke bro.

[180sx]

it depends on the size of the turbo, induction pipe, length of the cooler pipping and size of the cooler

[1996ek1]

Think you should ask a nissan driver or on NS. no joke bro.

I don't know any nissan drivers, and all the s14/15's are often driving past me

I dunno what NS is, and i don't know any nissan forums. I just thought i would ask here because its the easiest way....

[1996ek1]

it depends on the size of the turbo, induction pipe, length of the cooler pipping and size of the cooler

So is it flutter or bov?

And that would mean.... all nissan have the same setup? Even after purchasing different size FMIC's, with custom piping, and different intakes etc. (all the variables of custom intakes/charge piping) they all still have the same sound.... ?

[Sexc86]

what i have found is the turbo sizes are usually alot smaller compared to the engine size... also may have something todo with the way the head flows... as it has been designed from factory boosted. maybe something to do with the camshafts... more duration possibly

[1996ek1]

what i have found is the turbo sizes are usually alot smaller compared to the engine size... also may have something todo with the way the head flows... as it has been designed from factory boosted. maybe something to do with the camshafts... more duration possibly

So do you think its acctually flutter, or BOV?
Because i'd think its flutter, but im sure, being a huge jap car that most of the owners would have BOVS on them....

Which is where i get confused

[aimre]

There not using BOVs, thats why it flutters

[Sexc86]

not necesselary...

a hks ssqv does sound like a flutter... also sometimes, depending on how hard you have your bov screwed (if its adjustable that is) it can flutter if there isnt enough pressure to open the bov, or open the bov with more boost / pressure

that way you could sometimes have the "tu tu tuu" (flutter) or "ptshh" (bov) sound.

Regards Lyle

[Geekstar]

SR20 ftw. me mates got no bov on his s15 it flutters like hell.

[Geekstar]

nissansilvia.com <<<------go there.