Jump to content
SAU Community

Recommended Posts

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

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!

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

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

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.

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

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

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: 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


  • Similar Content

  • Latest Posts

    • The average previous owner for these cars were basically S-chassis owners in the US. Teenagers or teenager-adjacent. I often tell people that neglect is easier to fix than something that was actively "repaired" by previous owners.
    • Update 3: Hi all It's been a while. Quite a lot of things happened in the meantime, among other things the car is (almost) back together and ready to be started again. Things that I fixed or changed: Full turbo removal, fitting back the OEM turbo oil hardlines. Had to do quite a bit of research and parts shopping to get every last piece that I need and make it work with the GT2860 turbos, but it does work and is not hard to do. Proves that the previous owner(s) just did not want to. While I was there I set the preload for the wastegates to 0,9bar to hopefully make it easier for the tuner to hit the 370hp I need for the legal inspections that will follow later on. Boost can always go up if necessary. Fitted a AN10 line from the catch can to the intake hose to make the catchcan and hopefully the cam covers a slight vacuum to have less restrictive oil returns from the head and not have mud build up as harshly in the lines and catch can. Removed the entire front interior just shy of the dashboard itself to clean up some of the absolutely horrendous wiring, (hopefully) fix the bumpy tacho and put in LED bulbs while I was there. Also put in bulbs where there was none before, like the airbag one. I also used that chance to remove the LED rpm gauge on the steering column, which was also wired in absolute horror show fashion. Moved the 4in1 Prosport gauge from sitting in front of the OEM oil pressure gauge to the center console vents, I used a 3D printed vent piece to hold that gauge there. The HKB steering wheel boss was likely on incorrectly as I sometimes noticed the indicator reset being uneven for left vs. right. In the meantime also installed an airbag delete resistor, as one should. Installed Cube Speed premium short shifter. Feels pretty nice, hope it'll work great too when I actually get to drive. Also put on a fancy Dragon Ball shift knob, cause why not. My buddy was kind enough to weld the rust hole in the back, it was basically rusted through in the lowermost corner of the passenger side trunk area where the wheel arch, trunk panel and rear quarter all meet. Obviously there is still a lot of crustiness in various areas but as long as it's not rusted out I'll just treat and isolate the corrosion and pretend it's not there. Also had to put down a new ground wire for the rear subframe as the original one was BARELY there. Probably a bit controversial depending on who you ask about this... but I ended up just covering the crack in the side of the engine block, the one above the oil feed, with JB Weld. I used a generous amount and roughed up the whole area with a Dremel before, so I hope this will hold the coolant where it should be for the foreseeable future. Did a cam cover gasket job as the half moons were a bit leaky, and there too one could see the people who worked on this car before me were absolute tools. The same half moons were probably used like 3 times without even cleaning the old RTV off. Dremeled out the inside of the flange where the turbine housing mates onto the exhaust manifolds so the diameter matches, as the OEM exhaust manifolds are even narrower than the turbine housings as we all know. Even if this doesn't do much, I had them out anyways, so can't harm. Ideally one would port-match both the turbo and the manifold to the gasket size but I really didn't feel up to disassembling the turbine housings. Wrapped turbo outlet dumps in heat wrap band. Will do the frontpipe again as well as now the oil leak which promted me to tear apart half the engine in the first place is hopefully fixed. Fitted an ATI super damper to get rid of the worn old harmonic balancer. Surely one of the easiest and most worth to do mods. But torquing that ARP bolt to spec was a bitch without being able to lock the flywheel. Did some minor adjustments in the ECU tables to change some things I didn't like, like the launch control that was ALWAYS active. Treated rusty spots and surface corrosion on places I could get to and on many spots under the car, not pretty or ideal but good enough for now. Removed the N1 rear spats and the carbon surrounding for the tailpipe to put them back on with new adhesive as the old one was lifting in many spots, not pretty. Took out the passenger rear lamp housing... what do you know. Amateur work screwed me again here as they were glued in hard and removing it took a lot of force, so I broke one of the housing bolts off. And when removing the adhesive from the chassis the paint came right off too. Thankfully all the damaged area won't be visible later, but whoever did the very limited bodywork on this car needs to have their limbs chopped off piece by piece.   Quite a list if I do say so myself, but a lot of time was spent just discovering new shit that is wrong with the car and finding a solution or parts to fix it. My last problem that I now have the headache of dealing with is that the exhaust studs on the turbo outlets are M10x1.25 threaded, but the previous owner already put on regular M10 nuts so the threads are... weird. I only found this out the hard way. So now I will just try if I can in any way fit the front pipe regardless, if not I'll have to redo the studs with the turbos installed. Lesson learned for the future: Redo ALL studs you put your hands on, especially if they are old and the previous owners were inept maniacs. Thanks for reading if you did, will update when the engine runs again. Hope nothing breaks or leaks and I can do a test drive.
    • No those pads are DBA too  but they have colors too. I look at the and imo the green "street" are the best.
    • I’m not sure what happened I told them about sonic tunes free OTS tune and the next the I know .. I was booted..   To funny 
×
×
  • Create New...