Jump to content
SAU Community

Turbo Noise On My R33

NiSmO`ChiCk

By NiSmO`ChiCk,
in Engines & Forced Induction

 Share

Recommended Posts

NiSmO`ChiCk Collaborator

NiSmO`ChiCk

Posted
Posted

hey guys

so i blew my turbo on my r33 at the start of last year and got it replaced with a stock r34 turbo and its been running fine ever since..

but now just after this weekend, wenever i accelerate and hit boost almost everytime i get this really really loud siren noise coming from my turbo.. and its not just a little whine or anything either.. its a massively loud siren like noise like ambo/police siren.. and people stared at me wen i was driving to work this morning thinking ive got some siren sound im playing on purpose or something.. lol

anyways i have no idea wtf is going on but my guess is ive probably f**ked my turbo again.. :(

oh and my cars pretty stock.. running stock psi.. no fmic etc..

any help appreciated

thanks

jenna

Link to comment
https://www.sau.com.au/forums/topic/196071-turbo-noise-on-my-r33/
Share on other sites
sl33py Mentor

sl33py

Posted
Posted

I just blew my (stock) turbo (on stock boost) casually driving home at normals revs and speed. I limped it to my mechanic, and when the heard the "whizzing" noise mine made when I revved it, he instantly said the turbo is dead.

Hope you have some savings!

NiSmO`ChiCk Collaborator

NiSmO`ChiCk

Posted
  • Author
Posted (edited)

thanksss for the replies :D

so i got it towed and its going into the mechanics later this week.. doubt its completely dead but it may be on its way out.. anyway good chance to upgrade which i was planning on doing soon.. hopefully something can bolt straight on.. hmmm about that.. anyone know what turbo does? does a t28?

Edited by NiSmO`ChiCk
Fry_33 Proficient

Fry_33

Posted
Posted

My friend had this (siren noise) happen to his R33 Series 2 turbo. We're pretty sure that it was a bent shaft at the compressor end and the Nylon comp wheel hitting the housing.

Time for another turbo :P

Spunky Munky Grand Master

Spunky Munky

Posted
Posted

I think the fins are chipped or cracked in your turbo... if this goes, you have no choice but to replace it... damn, a mate had a similiar problem... it's more like a high pitch tone then anything else.

limpus Mentor

limpus

Posted
Posted (edited)

I got the same sound when i installed my 2535 a year ago...siren sound was loud as!! i checked and rechecked everything on the intake side of the engine and all was good...funnily enough...the sound went away when i got a resonator welded onto the exhaust...this was done for a differenct reason but it stopped the wailing...so for me it was probably some sort of resonance through the pipes...and it wasn't the turbo dying...its run 1.2-1.3 bar for a year since then and its still ok...

Take what you will from my experience...i'm not saying its definitely the cause but it was for me...

Edited by limpus
EvilINGT Community Regular

EvilINGT

Posted
Posted

Had this happen to me, a bit of the exhaust wheel chipped/came off and unbalanced the shaft, so was the lovely sound of the bearings eating themselves :P, i didnt want to accerlerate anywhere, so embarassing. Lucky i had already bought a GCG R34 highflow for $2k off the SAU forums :D, it even came with braided lines plus all the other bits.

cheers

Evil

iz32 Community Regular

iz32

Posted
Posted

Ive had the siren sound for a year now on a hks turbo.... had it rebuilt twice cos i though it was broke but its still there.... it went away briefly with a new higher HP tuned eprom (the turbo induction sound went really quiet and the siren sound dissapeared but the car went way harder)

then the siren came back after i did an engine swap (done to fix engine oil leaks) which also brought ping ping caused by timing issues at higher boost....

EMS now installed and getting tuned on wed so if the siren goes away im gonna put it down to engine specific timing setup in conjuction with afr's somehow.

I wouldnt worry unless there is shaft play or blades touching the housing......

the siren sound is much different to the grinding sound of blade on housing

limpus Mentor

limpus

Posted
Posted
Limpus: some of the 25 series HKS turbos like to make funny siren noises, its jus the way they spool.

Spunky monkey: I've had the mosquito whine from a turbo but i've also had this full on siren noise. It has to be heard to be believed....very freaky stuff haha.

Yeah...i put it down to some weird resonance through the pipes or something like that as it only happened after i put in the original HKS dump pipe...then at a later date i get a resonator welded onto the catback and then the noise went away...

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

    • niZmO_Man
      R32 Nostalgia

      By niZmO_Man 路 Posted

      From my youth: GTi-R clutch change is a massive pain. The gearboxes are fragile? But the car is super cool and I want one 馃槩 
    • niZmO_Man
      New R32 owner soon

      By niZmO_Man 路 Posted

      Remember this is 1988 tech.
    • TurboTapin
      R32 GTST - 600KW+ RB28/CD009 Build

      By TurboTapin 路 Posted

      Driveline vibration is resolved. I ended up loosening all my engine mount and trans mount bolts, giving it a good shake then retightening everything and it's gone... Let's just say I was surprised that fixed it.  I've been happily driving it around again but unfortunately put zero time into my direct port/constant pressure WMI setup. I'm on vacation next week, so I'll try and finalize it then.  On a different note, I spent all week fuel/ignition mapping 2x 216L V16 engines. Turbo's were burning glycol and we swapped them out for larger units. We also had planned emissions testing on site, so I figured I'd be there the same week to use their instrumentation and massage any emissions issues out if needed. This was a first for me. Fuel management is similar in certain ways to automotive (i.e air density as load variable) but very different in others. It's all PLC based and AFR's are controlled by air and not fuel. They use a control valve between the turbo and air manifold to control pressure which in turn controls AFR's. Due to this, target AFR tables supplied by the OEM are in pressures and not mass which really through me off. They use air pressure vs fuel pressure tables. I also relied on an O2 concentration sensor the emissions team had in the exhaust. Ignition timing was also all over the place and we were losing a fair bit of power. They're now happily sitting at 16-40BTDC depending on load. We were making about 1600kw at 900rpm at 90% load. Engines were running a lot smoother as well.    
    • Duncan
      1992 R32 GT-R Race Car

      By Duncan 路 Posted

      heh, aint no R32 ever meeting modern targa cage rules unless the driver is veeeery short OP, good luck with the sale, since its already in the land of freedom I'm sure you will find a good buyer.
    • Duncan
      Oil pan for RB25DET NEO Stagea "version"

      By Duncan 路 Posted

      meh, it was a good video, clear about the issue and how he dealt with it. A bit heavy on the RTV and very brave to put an RB in anything without rebuilding it first, but otherwise I thought it was good Dose, I'm not sure that having the pickup forward is a big issue; yes of course the oil could shift under brakes but the sump should never be empty enough for that to be a problem (unless you also have a higher volume oil pump, and that oil can't return from the head to the sump quickly enough)
脳
脳
  • Create New...