Jump to content
SAU Community

Hks Ssq Bov Flutter?

Jaydo707

By Jaydo707,
in Engines & Forced Induction

 Share

Recommended Posts

Jaydo707 Explorer

Jaydo707

Posted
Posted

Iv got a hks ssq bov that doesn't flutter was wondering if there's any way to make it? Don't get me wrong I love the sound of the standard sound but would like to hear Wat it sounds like.fluttering any ideas?

There is a bolt on the back for adjustment..

Thanks

-Jayden-

Link to comment
https://www.sau.com.au/forums/topic/370845-hks-ssq-bov-flutter/
Share on other sites
krzysiu Grand Master

krzysiu

Posted
Posted

Iv got a hks ssq bov that doesn't flutter was wondering if there's any way to make it? Don't get me wrong I love the sound of the standard sound but would like to hear Wat it sounds like.fluttering any ideas?

There is a bolt on the back for adjustment..

Thanks

-Jayden-

Want flutter? Don't run a bov. A bov is designed to stop compressor surge (flutter)

045HOW Mentor

045HOW

Posted
Posted (edited)

How do I achieve flutter with out surging?

Blank your bov or block the vacuum line(not with stock bov because it will still open on full boost). im not sure on the hp limit but i wouldnt do it over 300hp. someone should be able to shed some better light on the subject.

Edited by Blueone
gotRICE? Veteran

gotRICE?

Posted
Posted

^ Shit post is shit

Tightening the BOV or blocking it is just going to cause compressor surge. Stao told me to avoid any compressor surge but I really do like the sound of it.

Only if you tighten it too much.. I think you will find that true compressor surge is actually when the engine cant swallow the boost the turbo is throwing at it.

It will frighten you...

Run-It-Hard Veteran

Run-It-Hard

Posted
Posted

^ Shit post is shit

Tightening the BOV or blocking it is just going to cause compressor surge. Stao told me to avoid any compressor surge but I really do like the sound of it.

Cool story bro!

having no BOV does not cause compressor surge :thumbsup:

gotRICE? Veteran

gotRICE?

Posted
Posted

Agreed. It was a simple question with a simple answer. if you dont like flutter, then f**k off and dont post. Noone cares what you have to say.

So anyway, back OT, im guessing there will be a little locking nut you need to undo, then wind the screw in a few turns, and re lock the nut.

Just try it on different settings untill you find a sound you like.

I have a Greddy Type RS and did the same. I didnt want flutter, but having it really loose sounded poop, so i tightened it up a touch. I get flutter at very low load/boost and light VAC, but once the boost is up a few psi it opens properly.

I dont see it causing any harm. Has been like it for a year or so now.

Jaydo707 Explorer

Jaydo707

Posted
  • Author
Posted

Agreed. It was a simple question with a simple answer. if you dont like flutter, then f**k off and dont post. Noone cares what you have to say.

So anyway, back OT, im guessing there will be a little locking nut you need to undo, then wind the screw in a few turns, and re lock the nut.

Just try it on different settings untill you find a sound you like.

I have a Greddy Type RS and did the same. I didnt want flutter, but having it really loose sounded poop, so i tightened it up a touch. I get flutter at very low load/boost and light VAC, but once the boost is up a few psi it opens properly.

I dont see it causing any harm. Has been like it for a year or so now.

Thanks mate did just that it sounds great but I'm running standard turbo standard boost and it sounds like its coming out of the pod but coz its low boost it can't do n e damage can it ?

SargeRX8 Grand Master

SargeRX8

Posted
Posted

Thanks mate did just that it sounds great but I'm running standard turbo standard boost and it sounds like its coming out of the pod but coz its low boost it can't do n e damage can it ?

I ran my stock turbo with a blocked BOV since I bought the car. Took it out, there is very minimal shaft play. Never had any issues. The sound will be coming out of your pod.

Some people think flutter is the bov opening and closing rapidly... I don't think this happens. Although those are generally youtube comments. I'm gonna reinstall my turbosmart BOV after I get my plumb back adapter and tighten it up so I get flutter on low boost but don't risk damage on higher boost.

Adriano Grand Master

Adriano

Posted
Posted

lol to all the people saying surge isnt flutter, they are teh saem thing as the car above on the dyno, just happen when you lift off instead of under load. As far as the turbo is concerned it is the same thing(running too far to the left of the compressor map past the surge line)

DVS JEZ Grand Master

DVS JEZ

Posted
Posted

Reverb.

The trapped boost pressure when the throttle plate is closed has no here to go but back out through the compressor turbine and out the airfilter.

A BOV releases this pressure so it doesnt have to force its way back through the turbine.

I run my BOV's fairly tight so at low boost you get a reverb(flutter) but anything over 9psi the bov helps to release the pressure.

I have never seen or heard of a turbo dieing due to this.

045HOW Mentor

045HOW

Posted
Posted

lol to all the people saying surge isnt flutter, they are teh saem thing as the car above on the dyno, just happen when you lift off instead of under load. As far as the turbo is concerned it is the same thing(running too far to the left of the compressor map past the surge line)

Compressor surge is not flutter.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • GTSBoy
      New Honda prelude at Goodwood

      By GTSBoy · Posted

      Well, in the same way that you can't tell any SUV from any manufacturer in any size category from any other one, "sports" coupes now all look identical. Stand back and squint your eyes and the Supra and the 400Z and the GR/BRZ things all look the same. I was just thinking last night, when sitting behind a Subaru CrossTrek, that I have no idea what it is, how it differs from an XV, or a Forester, or an Outback, or anything else Subaru offer, and I couldn't tell if it was supposed to be small, medium or large. I contrasted that to the good old days, where a HQ Kingswood had familial similarities to an LJ Torana, but there is no way that you could confuse them, and how a bit later, the HX Kinger and the concurrent Torana and the Gemini all had familial similarities, but you still could not confuse them. Ditto the ugly Fords and Chryslers of the era. But now, a RAV4 looks like a Kluger, looks like a Yaris/Cross/whatever they're calling those stupid f**king things, looks like every other Toyota that's not a Camry/Corolla sedan.
    • Rezz
      New Honda prelude at Goodwood

      By Rezz · Posted

      The Prelude doesn't look that bad without all that lens distortion in those pics. Makes it look disproportionate when it isn't. Actually I kind of liked it at the Osaka Auto Messe earlier this year. 
    • Dose Pipe Sutututu
      Ethanol Content Sensor - Always at 11%?

      By Dose Pipe Sutututu · Posted

      Pour in the highest octane, non-ethanol fuel you can get and see if the readout changes. If it's dead bang on 11% then I would question the sensor. Another quick test, just take it out and run normal (in an american accent) gas-o-line through it and see if the sampled ethanol or lack of changes.   United E85 here in the land of drop bears does vary a bit, I've had as high as E87 (could be water in their tanks too, who knows)
    • GTSBoy
      FS5R30A rb25det neo 5 speed trans

      By GTSBoy · Posted

      Yep. And if you ever do, you'll just have to deal with it then.
    • joshuaho96
      Ethanol Content Sensor - Always at 11%?

      By joshuaho96 · Posted

      E10 is pretty tightly regulated in percentage. Too much and engines can't adapt. Every incentive is against them to have too little ethanol though. The more ethanol the higher the octane.
×
×
  • Create New...