Jump to content
SAU Community

Recommended Posts

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

Link to comment
https://www.sau.com.au/forums/topic/207311-flutter-how/
Share on other sites

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 :(

Link to comment
https://www.sau.com.au/forums/topic/207311-flutter-how/#findComment-3668152
Share on other sites

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 by Black_CSR
Link to comment
https://www.sau.com.au/forums/topic/207311-flutter-how/#findComment-3668309
Share on other sites

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 by A31StRuCK
Link to comment
https://www.sau.com.au/forums/topic/207311-flutter-how/#findComment-3668335
Share on other sites

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.

Link to comment
https://www.sau.com.au/forums/topic/207311-flutter-how/#findComment-3668368
Share on other sites

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.

Link to comment
https://www.sau.com.au/forums/topic/207311-flutter-how/#findComment-3668441
Share on other sites

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 by zilr34
Link to comment
https://www.sau.com.au/forums/topic/207311-flutter-how/#findComment-3668482
Share on other sites

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 by A31StRuCK
Link to comment
https://www.sau.com.au/forums/topic/207311-flutter-how/#findComment-3668604
Share on other sites

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

Link to comment
https://www.sau.com.au/forums/topic/207311-flutter-how/#findComment-3668831
Share on other sites

Guest
This topic is now closed to further replies.


  • Similar Content

  • Latest Posts

    • I do believe from context he is talking about a S0/S1 R33 RB25 with associated ECU and Wiring for that, and a manual gearbox into a R34 N/A Auto. I don't have the knowledge of all the pinouts and such but my gut feeling from doing my own conversion is to use as much of the R33 stuff that you can. The "car" wiring is quite seperate from the "Engine" wiring when all things are considered. The only things to truly consider 99% of the time is the cluster, reverse lights and potentially disabling the 'not in P/N' immobilizer circuit.
    • A realistic expectattion of how long it has to last also comes down to.... when do you think you will be banned from registering and driving old petrol powered shitters? It's 27 years since that thing was built. It probably rusted out 15 years ago. It was probably repaired and looked OK for another 10. If you do a similarish bodge job now, or perhaps slightly better with some actual rust conversion and glassing, then.... get another 10-15 years out of it, after which you'll only be permitted by the CCP to drive electric cars manufactured in their Shenzen zone anyway. 
    • Let me assume that the concern over a manual ECU is that the NeoDET that you have was an auto and has an auto ECU. That ECU will not be a problem, but you WILL have to Nistune it. And you would have to Nistune it even if you had a manual ECU, because the turbo ECUs will shit the bed if they do not have all the things that they were told they have to have, to be happy. The big one being the TCS CU, which you won't have in your car. Anyway, with an auto ECU (which I have running my originally auto NeoDET in an R32) Nistune allows you to put in a Stagea image which doesn't panic about the absent TCS, and allows you to override a whle bunch of other annoyances that would otherwise see the check engine light on 100% of the time. Also, you can't wind up the power very far on the stock NeoDET ECUs without Nistune, because the boost sensor gets in the way. Nistune allows you to push that problem much further up the dial. Do you even have the boost sensor with the engine? Without it, you are SOL and will need an aftermarket ECU (or to find a sensor somewhere, god knows where). I can't tell you what the wiring loom differences are in a 34. But what Duncan said above needs to be considered. When you say "loom", does that include the transmission loom? Because you will need to swap out the auto tranny loom for the equivalent manual loom, and get rid of the neutral/park start interlock (basically hot wire it).
    • I have had the r3c in for years now, maybe close to 7 years and it has never missed a beat, anyone can drive it. Super easy to drive around town, the hotter it gets does get a little hard but it holds the power easy as 
    • Shit thing to find eh? I guess the big issue is that whatever "fix" you do now, it might slow the rust down but won't fix it. I just wanted to add that in no way is fixing sheet metal in 3 dimensions the place to start with welding....that is a pro only job because its too hard to work out where things should be, let alone doing a clean enough job that it can look OK and still be strong too.  I needed to get a new rear quarter panel on the GTR and it took a pro weeks to get the old one off cleanly, new one on in the right place and looking somewhat like it should have with most of the previous connecting panels in place. Gluing a couple of bits of metal together with a welder in the garage is doable, but that is totally different to doing panel  replacement
×
×
  • Create New...