Turbo whine

[MisterMac]

Curious to know. Does anybody else notice the sound of their turbo's winding up when all else is quiet?

 

[Merkur720]

Yes....and I love it.

 

[Kamauxx]

I only noticed mine after installing a new exhaust. When the car was stock I never heard them. Now they're pretty pronounced when I have the windows down.

 

[MisterMac]

Yes....and I love it.

Exactly! I prefer it over the amplified exhaust note, but I'll take both.

 

[Dan1028]

Bumping this necrothread, back from the dead .

I've owned the Stinger now for almost a year and have recently noticed the turbos whine. To be honest, it doesn't sound like a typical turbo whistle but, rather, like a supercharger whine. I haven't been able to pinpoint exact conditions but I don't believe it's on cold starts (I tend to let the oil warm before pushing the engine), and in medium applications of accelerator at say 4,000 or so RPM. I've noticed it more pronounced when taking a left-hand corner while accelerating.

For what it's worth, mine is a 2018 GT2 AWD, 10/17 build date.

 

[Adamdan]

Bumping this necrothread, back from the dead .

I've owned the Stinger now for almost a year and have recently noticed the turbos whine. To be honest, it doesn't sound like a typical turbo whistle but, rather, like a supercharger whine. I haven't been able to pinpoint exact conditions but I don't believe it's on cold starts (I tend to let the oil warm before pushing the engine), and in medium applications of accelerator at say 4,000 or so RPM. I've noticed it more pronounced when taking a left-hand corner while accelerating.

For what it's worth, mine is a 2018 GT2 AWD, 10/17 build date.

If it’s gotten louder on it’s own you might want to have the dealer look at it. If it’s starting to fail better have it changed out before it comes apart and takes out your engine.

 

[Callum]

A supercharger whine, or police siren is symptoms of a failing turbo. Stay outa the skinny pedal and get it to a dealer. Demand they open a tech line case, otherwise they will say “its not broken until it breaks”.

 

[Doel]

could be a bearing problem in one of the turbos, could be something as simple as a boost leak. Regardless, I would get it looked at. On a stock car, the turbo whine should be barely audible. If you're modded, I would revert to stock and see if it's still there, you'll have to do that anyway before bringing it in.

 

[Dan1028]

The car is totally stock (aside from tire replacement to A/S and a bevy of farts that I installed into the driver's seat free of charge).

It isn't consistent. The day I posted, it was loud enough for anyone to notice. I didn't hear it at all today. Weird. I'll keep my ears open and bring it to the dealer if the sound comes back.

 

[Callum]

The car is totally stock (aside from tire replacement to A/S and a bevy of farts that I installed into the driver's seat free of charge).

It isn't consistent. The day I posted, it was loud enough for anyone to notice. I didn't hear it at all today. Weird. I'll keep my ears open and bring it to the dealer if the sound comes back.

Edit: Not a great suggestion. Dealer visit if you hear it again

 

[lucif3r]

I get a high pitched sound on very cold starts for like a minute or so, then it goes away. Not sure what it is..

 

[Adamdan]

I get a high pitched sound on very cold starts for like a minute or so, then it goes away. Not sure what it is..

That’s probably the secondary air pump kicking in. A way to test it is when u start the car when you hear it tap the throttle and it will stop.

 

[Adamdan]

Curious to know. Does anybody else notice the sound of their turbo's winding up when all else is quiet?

Do you just hear this on cold starts for a min or two?

 

[ZyroXZ2]

The car is totally stock (aside from tire replacement to A/S and a bevy of farts that I installed into the driver's seat free of charge).

It isn't consistent. The day I posted, it was loud enough for anyone to notice. I didn't hear it at all today. Weird. I'll keep my ears open and bring it to the dealer if the sound comes back.

If it sounds like a police siren and is audible and linear with your acceleration during driving, it is absolutely a turbo that has either a warped (or warping) shaft or worn/bad bearings. If it continues to get louder over time, get those turbos swapped before you get metal in your engine. At worst, there may be damage directly to the blades (which can also cause the same sound as the resistance to the blades turning is increased by bent blades, etc.). That last one is easy to check: just take off the intake, take your cell phone, turn on the flash, point it in there and take a pic.

 

[lucif3r]

If it sounds like a police siren and is audible and linear with your acceleration during driving, it is absolutely a turbo that has either a warped (or warping) shaft or worn/bad bearings. If it continues to get louder over time, get those turbos swapped before you get metal in your engine. At worst, there may be damage directly to the blades (which can also cause the same sound as the resistance to the blades turning is increased by bent blades, etc.). That last one is easy to check: just take off the intake, take your cell phone, turn on the flash, point it in there and take a pic.

That sounds pretty f*cking not good. I hear a whine/whistle on very cold starts, but not on accelaration, its just constant almost like a break squeek. Its very feint, not loud at all. After about 1 min of driving it goes away. I typically let my car warm up for about 15 min in the morning and never go over 2k rpm till its fully warmed up.

 

[ZyroXZ2]

That sounds pretty f*cking not good. I hear a whine/whistle on very cold starts, but not on accelaration, its just constant almost like a break squeek. Its very feint, not loud at all. After about 1 min of driving it goes away. I typically let my car warm up for about 15 min in the morning and never go over 2k rpm till its fully warmed up.

The key correlation is the police siren while driving and hearing its tone coincide with acceleration. If you hear it during driving, something's getting worn or warped.

It's possible to hear it faintly when cold (though you REALLY shouldn't, either) as there is resistance to spinning due to cold oil or increased moisture in the air where things aren't hot enough to have evaporated it. If it completely goes away once you're driving, you're fine.

 

[lucif3r]

The key correlation is the police siren while driving and hearing its tone coincide with acceleration. If you hear it during driving, something's getting worn or warped.

It's possible to hear it faintly when cold (though you REALLY shouldn't, either) as there is resistance to spinning due to cold oil or increased moisture in the air where things aren't hot enough to have evaporated it. If it completely goes away once you're driving, you're fine.

Yes it most def goes away entirely. Its so mild, that you can barely hear it unless you have the radio completely off. Unless the temperature is in the -30s like its been here the last few weeks, it doesnt even occur.

 

[Doel]

Yes it most def goes away entirely. Its so mild, that you can barely hear it unless you have the radio completely off. Unless the temperature is in the -30s like its been here the last few weeks, it doesnt even occur.

I wouldn't worry about that, cars often make some extra sounds when idling cold with all the extra pumps and accessories working overtime for a minute.

 

[STINGER]

The sound during cold startups is normal if it lasts a minute or so. With my JB4 monitoring, it will actually build 1-2psi during that period when it is making the sound in a cold startup.

 

[Adamdan]

The sound during cold startups is normal if it lasts a minute or so. With my JB4 monitoring, it will actually build 1-2psi during that period when it is making the sound in a cold startup.

Yup that’s the secondary air pump. They only turn on in cold weather at cold start to warm up the cats faster.