Hks 2530 Turbo Induction Noise?

[RubyRS4]

Can anyone tell me if it IS normal for a HKS 2530 turbo to make spooling noises (like a whistle)?

Is this normal induction noise.

Also, does a bellmouth dump pipe provoke noise at high rpm from the wastegate opening? (like a muffled screamer?) ... or would this signify a leak between the turbo and dump pipe?

[R31Nismoid]

Intake noise is more governed by

- intake piping... rubber or metal

- Pods... filter type, metal frame, plastic frame and so on

As with most sound based things, its very hard to tell over a computer

[joeyjoejoejuniorshabadoo]

i have an HKS 2835 pro s and it makes a slight whistling noise.... and you can hear the difference when the I/W opens... just

[M E S O G L E A]

I have the same turbo. With an atmo BOV no whistle. If I run a recirc, I can hear the compressor whine until the BOV closes.

[RubyRS4]

I have the same turbo. With an atmo BOV no whistle. If I run a recirc, I can hear the compressor whine until the BOV closes.

Yeah, I've heard the faint 'whistle' is normal for HKS turbos ... just needed reassuring ... someone else says 'no'.

My BOV is recirc back into intake.

I'm guessing the higher pitched noise is either the wastegate opening to release ex gases into my bellmouth dump pipe ... or its a loose nut (or gasket) around the turbo-to-dump or turbo-to-manifold.

[Fry_33]

I've got a 2530 on my R33 GTST and it whistles too. I too wasn't sure if this is right. It has been checked and no vacuum leaks could be found. Mine starts to whistle at about -0.8 Bar and then it becomes harder to hear after about 0.5 Bar or somewhere there. I'd be interested to hear some other peoples experiences. I've got the standard plumb back BOV, standard air filter and HKS dump.

What boost are you rinning?

[Lithium]

- intake piping... rubber or metal

- Pods... filter type, metal frame, plastic frame and so on

The causes of the most obvious "Turbo whistle" noise that HKS turbos are often recognized by is anti-surge compressor covers - HKS GT-RS, GT2835, GT3037, T51Rs and T62Rs all have it though I wasn't aware of anything smaller having that kind of housing though I guess they could have done it with the GT2530s etc just to be special

[silva33]

My HKS GTRS on my Stagea has a loud 'whistle' which is a totally different sound to the induction pod sound

[Justa32]

my 3037s wines like a little piggy

[Lithium]

Guess we all have cars with anti-surge housings then

[GTRsean]

My twins whine too, the 2530's that is. I'm running an airbox, Bee R filter with stock rubber intake piping.

[hypergear]

depends on the noise it makes. The Shinnning noise is normal, If its making a Zzzz... zz... noise, very noticeable when you switch off the car then it means bearing cartridge needs to be checked.

[DuFFR32]

Iv'e noticed a whistle with my HKS 2530 to be more pronnounced after changing to plumb back, its like the turbo spools up to a certain speed at like -0.08bar then as it comes onto boost gets harder to hear and goes away as soon as its on 0.5bar + my 32 is tuned to run around 16psi but the whistle noise im more aware of now since the change from full atmo to plumb back.... does it have to do with the way the air circulates around the intake pipe?