Flutter! How?

[SCR34M]

Been reading up on a few posts regarding bov's and so on, i posted a thread a little while back asking how to get that deep woosh sound, not that pissy pssshhhh sound... lol... i was told any atmo bov should do the trick, then told hks sequential, then some blitz one. Then i read another forum and they are talking about no bov = flutter... Apparently its all in the air filter you choose... IM CONFUSED!! can someone help me with this, if anyone knows what im talking about or can help me acheive this sound, please inform me as its starting to sh!t me off now...

PS this is the sound im trying to achieve, or very similar http://www.youtube.com/watch?v=bRR_aisRgPI...feature=related

cheers

Jesus

[sh@un]

[trism]

lolban

here where you could find the answer

google

nissansilvia.com

calaisturbo.com.au

run a search for

"OMFG HECTIC ULLEH FLUTTAH BRA AY CUZ"

you should get some results

skylinesaustralia does not support fluttah

[viet_boi]

that GTR34 is a beast..sounds mad..

[sidewayssam]

turbbooooo powerrrrrrrrrrrrrr

[R34GTTSKY]

try blockin off the bov? or it might be the type of bov maybe?

i've heard it on a s15 b4

Leo.

[Chi100188]

hmmm normally with aftermarket bov and a pod u get flutter bro's got HKS BOV with some sort of pod and gets flutter hope that helps

[R34GTTSKY]

use to have a SARD r2d2 in the car n it fluttered:)

[ossie_21]

GT30 with a big K & N pod & a blitz supersound bov - yeah that gives me a touch of flutter lol

I wouldn't suggest getting your car to make a sound like that, it was flutter that got me my yellow sticker! Wasn't even boosting

[MIDNIGHT TYPE X]

lol

best way to get a flutter...

#1- f**k off all blow off valves

#2- crank up the boost (the more boost the louder)

#3- get a fat turbz (the bigger the betta)

all within reason

[Flash89]

i am guessing that BOV is a greddy type R BOV, they are made for high HP and a lot of boost cars

http://video.google.com.au/videoplay?docid...h&plindex=0

something like that??

[Black_CSR]

The tightness of the Bov of how u set it.. will make it flutter with the pod.... @ Low revs the the Bov will stay shut and not enough to open and sometimes all u will hear is the Pod.. on colder weather it will sound different...

What is Wastegate Chatter??? might be that... But i know on low Revs it will flutter and on high revs it will Whoosh and fully open. This is the way a BOV should function.

-SeS

Edited February 22, 2008 by Black_CSR

[SCR34M]

i am guessing that BOV is a greddy type R BOV, they are made for high HP and a lot of boost cars

http://video.google.com.au/videoplay?docid...h&plindex=0

something like that??

yeah dude like that... just need to know how to get that sound is all... sorry to be a pain in the @ss but ive been wondering about this for a while now! i have heard a few like this, one that sticks in mind is a 32 that comes along on cruises... who is that?

Cheers for all the help boys!

Edited February 22, 2008 by A31StRuCK

[r33dorifta]

my mates got a vl clais with an rb25.

he has a simalar sound.

i know he runs no bov and has just a filter.

what creates the sound out of the pod is the backpressure not very good for the turbo, any pod filter should do it.

i believe the sound is known as dosing so maybe search for that.

[4drftn]

if you have an adjustable bov turn it all the way to hard so it wont open on boost. air will bounce back and hit the turbo props and cause the flutter noise through your pod (hks apparently is the best for this as i believe the filter less)

[trism]

yeah as said, because you dont have a BOV to release the surplus air charge, it goes back and hits the compressor blades, and gets chopped up, backing that noise. its not to good for turbos, as it can f**k the blades...

hence the reason BOVs were invented...

[bubba]

BOV's were invented for mum and dad's who want their cars to be quiet, no real racecar runs a bov, particularly an atmo.

That being said, I run one, there was a period of ~2 days where I didn't have one fitted and it sounded super ghey and I kept blowing cooler pipes. My current bov is pretty hard, flutters at low boost and easy throttle letoffs, full boost and a quick letoff and it opens properly.

[zilr34]

As said above, you basicaly need to block off you're bov to achieve the ongoing flutter sound as it creates back pressure. Most bovs will create that sound blocked off, although you could experience boost leaks with some such as the stock one if it isnt blocked off properly.

Edited February 23, 2008 by zilr34

[SCR34M]

ok well where the blow off valve is supposed to go, theres a mitsubishi part there, kinda looks like a waste gate but not... ive put on the hks mushroom type air filter also. It sucks pretty damn hard but still when i clutch it makes that annoying psshhhh sound. when i get the car back next week ill try to block off the mitsu part and see what happens... but i have a hks ssq lined up if i want it, but im not going to get it if i dont need it for this sound ya know... call me stupid but i reckon that sound im looking for sounds awesome!

PS OMFG, why would nissan put a mitsubishi part on a skyline, i mean, really!!

Edited February 23, 2008 by A31StRuCK

[SKYPER]

The stock BOV can be modified to flutter and not leak after 10psi.

All you need to do is remove the stock BOV and plug the small hole

next to main valve. Also Tomei has instructions on how to do this

mod.

Here's an American version of the stock BOV mod, but is adjustable -

http://www.thedodgegarage.com/turbo_bov_mod.html