Howling Turbo

[kovac]

Hey all,

I'm not sure if it's normal or not but when I have the aircon on and the temp needle is about half way the turbo starts howling when boosting up at 8 psi.

But when the temp is between quarter to half without the zircon on it's the normal hissing sound and boost is around 5 psi.

Ford recons it's normal even when I took it there while it's doing it anyone else have this or does it sounds like it's on the way out

[Benji_vs]

Its not the fan kicking in? Probably not lol, howling? that's a new one

Only thing I can think of is check for leaks and that your exhaust bolts are tight, I cant explain why it would do it when the car is at half way temp??

[kovac]

its a hard 1 to explain I know that its supposed to make a shhhhh noise whilst spooling up but when it gets hot it starts off with the shhhhhh noise but at higher revs it starts howling mainly does it when the aircon is on and the blow off sound is louder aswell

[kovac]

I finally got around to have a proper look at all the piping and found that the bolts were pretty loose but it still hasn't worked I havnt lost any psi it but it now starts at around 7 psi then drops to 5.

I have noticed that the pipe that goes from the top of the intercooler isn't completely round it is flat at about 1/4 through could this be the issue

[Rudiger]

Does the sound vary if you vary pressure on the go pedal?

I have a Nizpro Stage 2. The induction noise is phenominal. However, at low or mid accell the induction sound like air being sucked through an air filter. Ok DER. But when you give it more, its like it all comes together and the sound is unbeleivable. Whine, and spool up and just this sound like its a bloody F1-11.

Not my point is, different ambient temperature will affect air density, (Again der) and it maybe that as it gets hottoer, the air passing over that suspect joing changes density and you get a different sound.

Is it tuned? Are you getting it tuned? Id assume you have oif your running 8psi. Take it back to the Tuner, to someone who has half an idea. Ford only know what the can get money out of your for. The things service managers have told be about my car when I know they were totoally wrong wwould amaze you. According to my service manager, there is no other oil filter othr than the engine oil filter.

[kovac]

It's standard for now but planning to get it tuned It doesn't vary when u hit the go peddle.

It does sound like an f1 when the revs hit around 4g and up but not as loud it basically started after the car reached at about 85k

[kovac]

When I think back to when the it mainly does it is when it's hot outside I have the aircon running so I think that could be it cause whe the temp is cooler outside it won't do it cheers rudiger for the info

[Brods]

Check oil supply line to turbo isn't blocked.

[xr6t4life]

my car does the same thing when its really hot and the aircon is on, doesnt do it any other time though and my turbo oil filter is new so I know its getting enough oil so I just assume its normal.

[dule]

It's normal for a car to change sound under heavy heat. You shouldn't even be giving it hard time when it's really hot. I feel sorry for it, you hear it spooling and sucking in air but it's struggling to make power, these things suffer from heat soak anyway and when it's stinking hot outside it's a lot worse.

I know it's not very helpful to you but but something to take in to consideration, it could just be one of the components getting too hot...