Jump to content
SAU Community

Turbo Noise... Sucking...

Beef

By Beef,
in Engines & Forced Induction

 Share

Recommended Posts

Beef Community Regular

Beef

Posted
Posted

Hey ladz, just a bisic question..

my turbo is making a funny noise, it sounds like its really sucking in air hard.... i have just put a K&N pod filter on and it just seems like its sucking in a bit too much, there is no other noises like scraping or anything just a very prominant sucking noise before it comes on boost... its fairly loud... is this normal... does anyone else have a K&N pod filter on their r33?

does yours have a really loud sucking noise?

Beef

Link to comment
Share on other sites
kjb_r33 Experienced

kjb_r33

Posted
Posted
Hey ladz, just a bisic question..

my turbo is making a funny noise, it sounds like its really sucking in air hard.... i have just put a K&N pod filter on and it just seems like its sucking in a bit too much, there is no other noises like scraping or anything just a very prominant sucking noise before it comes on boost... its fairly loud... is this normal... does anyone else have a K&N pod filter on their r33?

does yours have a really loud sucking noise?

Beef

Completely normal

Link to comment
Share on other sites
mad082 Grand Master

mad082

Posted
Posted

as said, 100% normal. you have just put a much more free flowing air filter on, so the engine can breath better. if you want a filter that doesn't make anywhere near as much noise get one of the k&n pods with the flat top (bigger at the top, smaller where it clamps on). my old 180sx had 1, and a mates r33 had one and neither made any induction noise.

Link to comment
Share on other sites
Beef Community Regular

Beef

Posted
  • Author
Posted
as said, 100% normal. you have just put a much more free flowing air filter on, so the engine can breath better. if you want a filter that doesn't make anywhere near as much noise get one of the k&n pods with the flat top (bigger at the top, smaller where it clamps on). my old 180sx had 1, and a mates r33 had one and neither made any induction noise.

ok well i have a coned shape one on it now, just teh normal one as far as im concerned...

Link to comment
Share on other sites
Beef Community Regular

Beef

Posted
  • Author
Posted
nope. could be that the bov has either had a restricter put in it, it has had the recirculation hole blocked up, or its just plain stuffed.... is it a stock bov?

no its not stock, its an Apexi BOV, so its a really good brand, surely its not f*kked, im sure im not the only one with this flutter noise that seems to come from teh air filter ot something...

does anyone else have it?

Beef

Link to comment
Share on other sites
Beef Community Regular

Beef

Posted
  • Author
Posted

do u like it, i think it sounds f*kkin tough....

but mine will onyl do it under very low psi, once it boosts properly it lets go the way it should...

i especially notice it on teh highway, when you lightly accelerate to overtake then back off it flutters like a bitch.... but i think it sounds.... GANXTA

Link to comment
Share on other sites
BHDave Grand Master

BHDave

Posted
Posted

If it is only fluttering on back off at very low boost than i'd say it is perfect. It means the bov will definately be closed on return to idle so no stalling issues.

Link to comment
Share on other sites
Beef Community Regular

Beef

Posted
  • Author
Posted

yeah thast correct BHDave, but i have notice sometimes when i give it a bit in first (when turning into a driveway or something)

and then the bov lets go as it should it does stall, only very rarely... but why does it do this?

when it flutters it never stall, only rarley when the bov lets go as it should, any way i can make it do it more?

:(

Link to comment
Share on other sites
B0oStEr Mentor

B0oStEr

Posted
Posted

I guess your apexi bov is not plumb back.

The flutter you get from backing off at low boost is because your bov doesn't activate due to the spring tension being set high.

The air that the bov would release if it was working backs up and gets chopped by the compressor wheel making the flutter sound.

When you back off from higher boost there is enough pressure to open the bov to let the air out.

The trouble with letting the air out is that the air is already measured by the afm and the ecu has sent fuel for it which makes it run too rich and causes the motor to stall.

Link to comment
Share on other sites

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

    • luke gtr
      Hello Everyone

      By luke gtr · Posted

      Welcome.  Glad to hear that you have gained some knowledge that has helped you. I believe the only fix for the power steer belt is an electric conversion with a Holden astra pump. If you get a chance, post pics of your car, please. 🙂
    • ChoppedSpots
      GReddy Injector Help!

      By ChoppedSpots · Posted

      Just ordered those bosses, hopefully that does the trick thank you very much everyone for your replies it's really appreciated  
    • thx78
      Boost level and torque curve

      By thx78 · Posted

      to have this type of adjustment possible with a curve as I wish, what budget (engine) should be planned?  
    • Count Grantleyish
      Vic Wasteland Thread - 15.0

      By Count Grantleyish · Posted

      People still have Skylines? I thought they're non-existent now. 
    • pogman
      George's R33 GTST build

      By pogman · Posted

      Harness update time have had great fun and learnt so much already so far with this project. I started off making both the ignition and injector sub harnesses in the hope any mistakes i made here aren't as hard to undo and learn from as the main harness.  A cool comparison of the old harness using presumably TXL wire and the new which is using Tezel. Also opted to use DTM plugs to keep the whole setup as neat and tidy as possible and tucked the wiring under the coil bracket to try and keep it all from sticking out too much. Although the injector harness, I'm not overly happy with as I'm still using the rubber boots that are supplied with the type of plugs it just looks ugly and sticks out like a sore thumb with the white identifiers so a slight redesign may be done.   Then it was main harness time and most importantly trying to route it nice and away from the heat it will use the OEM heater hose routing which is no longer present to keep the harness up high and secure. it's amazing how much smaller this harness is able to be compared to the old one. plugged everything into the emtron and with the help of the tuner again attempted to start it up and instantly fired up and running smoothly on all 6 which was a big shock to myself. So still some routing and adjusting to be done for the final fit up and installing a knock sensor harness plug which is in the post all has gone surprisingly well.     The old harness for shits and giggles.
×
×
  • Create New...