Jump to content
SAU Community

is a bov meant to make noise when accelerating?

stretchy

By stretchy,
in Engines & Forced Induction

 Share

Recommended Posts

stretchy Newbie

stretchy

Posted
Posted

Howdy,

I recently installed a bov on the skyline and now I can hear a 'sucking' noise when accelerating. Its a bit weird - it basically sounds like the car is leaking air while its trying to suck it into the engine. I got an exhaust and pod filter installed at the same time and I have to say the performance of the car has barely changed. The power delivery is smoother now, but there is no noticable change in the amount of grunt. Not the result I was hoping from from those mods. I initially though the sound was from the pod filter but its quite strange not to get any power hikes, plus its very easy to hear from inside the car.

Is it possible the bov was installed incorrectly? The guy who did it was definately not a skyline specialist (long story) and I have a feeling he really didnt know what he was doing...

Regards,

Steve

Jordan Rising Star

Jordan

Posted
Posted

the sound you hear is probably from the Pod filter, its much louder than the factory airbox.

The standard BOV's had a sucking whistle while the car was on boost, but that was just the way it was designed.

WazR32GTSt Grand Master

WazR32GTSt

Posted
Posted
The sucking noise is your POD filter... All PODS suck air under throttle

its actually just the sucking sound of the turbo...

but now that you have removed the airbox (replaced it with a pod) there is no baffling of the sound, and thus it is easier to hear the sucking sound

:P

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

    • Murray_Calavera
      NC MX5

      By Murray_Calavera · Posted

      I know you don't want to hear this comment, but I can't not say it.  I just can't see 200kw being worth the time and effort. Its like guys with NA cars, putting in headers/exhaust/tune for a massive 20% jump in power. Great, the slow car is still slow and you're down $10,000.  My vote is leave it NA or price in a gearbox upgrade and shoot for at least 300KW, preferably 350KW+.  Now you have a NC that will try to kill you from time to time and will be exciting to drive
    • Murray_Calavera
      How "plug and play" is the Haltech Pro for R33 GTST

      By Murray_Calavera · Posted

      Ah yep. The main message I want to pass on is, try not to get scared of ghosts when thinking about knock/knock detection.  What I mean is, healthy engines make noise. Knock is also noise. Your knock sensor and ECU combo are trying to determine bad noise from good noise based on how loud the noise is. The factory knock sensors and ECU are not good at doing this.  Modern ECU's are pretty decent at it, however I'd still say that you would want to verify that if your ECU says it's knock, that you actually listen to it and confirm that it is correct.  Are you familiar with the plex knock monitor?  https://www.plex-tuning.com/products/plex-knock-monitor-v3/ I expect you're the type of person that would be very keen to play with something like this. It is great knock detection and you can pop some headphones on and listen to what's going on.  Knock that you've deliberately induced in low load low RPM areas is not really putting anything at risk and is a great tuning/learning/verification tool.  I just thought this was worth mentioning based on the way you were talking about setting up a base map and the Haltech base map settings. There are better ways to spend your time then chasing ghosts and worrying about detonation in scenarios that it is crazy unlikely to encounter it.  I was also wondering, what ECU are you planning to get? Will it be long til you pick it up?
    • Milkmun
      NC MX5

      By Milkmun · Posted

      This came quicker than I thought. It ain't even 2025 yet.
    • Kinkstaah
      NC MX5

      By Kinkstaah · Posted

      I somehow quoted my post instead of editing it. I regret nothing.
    • Kinkstaah
      NC MX5

      By Kinkstaah · Posted

      STOP GOOGLING FAB9 MAKE BORG WARNER EFR KITS FOR THE NC. THEY PACKAGE AN EFR 6758. DO NOTHING ELSE. CAPS INTENTIONAL. THE BEST RESPONSIVE SETUP EXISTS FOR YOUR CAR, AND HAS BEEN PROVEN FOR QUITE SOME TIME NOW. IN B4 "BUT I WANT EVEN MORE RESPONSE, IN A SIMPLER, MORE RELIABLE PACKAGE" WHICH IS A LS.
×
×
  • Create New...