Turbo whistle

**Mrsmopp** · Thursday 31st March 2005, 17:02

Is it a good sign or a bad sign as i am reading various conflicting ideas of late - can anyone clarify?

x

**Murphy** · Thursday 31st March 2005, 17:07

Originally Posted by Mrsmopp

Is it a good sign or a bad sign as i am reading various conflicting ideas of late - can anyone clarify?

x

Turbo's do whistle as they spin on average at 100000 rpm

**Mrsmopp** · Thursday 31st March 2005, 17:09

So its a good sign then???

x

**Murphy** · Thursday 31st March 2005, 17:11

Originally Posted by Mrsmopp

So its a good sign then???

x

it must be working ok if yours is whistling, but yes it is fine to whistle, you would know if you had a turbo problem - so just go on and enjoy her

**Mrsmopp** · Thursday 31st March 2005, 17:15

I'm not worried about mine in particular I know my turbo is ok otherwise it wouldn't hold the sort of boost that it does. What I am trying to determine is why some owners are told that the whistle is a bad thing and their turbo needs replacing and other are told its a good thing and its perfectly healthy? Which is it good or bad cos i'm curfuzzled?

x

**Goof** · Thursday 31st March 2005, 17:26

Nats - it's only bad news when it's knacked!
Mine doesn't whistle, but Mrs Goofs old Peugot GTDT did, and her Toyota Estima does a little too.
So either I haven't got a turbo, or it's a quiet one! (or I'm going deaf!).

**Mrsmopp** · Thursday 31st March 2005, 17:27

Originally Posted by Goof

Nats - it's only bad news when it's knacked!
Mine doesn't whistle, but Mrs Goofs old Peugot GTDT did, and her Toyota Estima does a little too.
So either I haven't got a turbo, or it's a quiet one! (or I'm going deaf!).

The latter LOL (just kidding of course

)

x

**andi t5** · Thursday 31st March 2005, 17:32

i thought the whistling was caused by airflow as it reaches mach 1 at the compressor blade tips,( turbo prop aircraft engines with centrifugal compressors tend to make the same sound) then again i may well be wrong i often am!

**siamblue** · Thursday 31st March 2005, 18:38

Many a time my passengers have mistaken my Turbo whistle for a Police car siren,Mine whistles so loud,Love it

**SaffronC70** · Thursday 31st March 2005, 18:57

you think that's something to do with your metal boost piping ?

**stevepud** · Thursday 31st March 2005, 19:06

Originally Posted by siamblue

Many a time my passengers have mistaken my Turbo whistle for a Police car siren,Mine whistles so loud,Love it

I went to look at a 300ZX once, and it whislted so loud I thought my ears were going to bleed.....(well not quite, but you get the idea!!)

Turned out it had a boost leak, not good

S

**siamblue** · Thursday 31st March 2005, 19:07

It could have Chris never thought about it before,But it is a more direct route for the air,and the metal pipe is bigger bore too.

Andrew · Thursday 31st March 2005, 21:35

Originally Posted by SaffronC70

you think that's something to do with your metal boost piping ?

Mine whistles to and goes "duvvvvsssss" when I release the pedal

**Ross9** · Thursday 31st March 2005, 22:13

Don't think pipes in thereself make it whistle, mine should sound like a dawn chorus of happy milkmen and postmen if so...

Exhibit A

and it doesn't whistle at all, just loads and loads of whooshing air, and a less than subtle roar out the back when it comes on boost.

If a turbo is whistling but showing no smoke/wear, or dropping of boost, chances are theres nothing wrong with it, Jacqs has had a small wheee noise since getting it. However whistling, or whining, can also be the blades whirring against the hoising if the bearings are away and the shaft is oscillating etc, theres a million things it can be, and "whistling" is a very vague term. A mates turbo did this, and sounded like the police were behind him with a siren on, then ti started givign off whiffs of blue smoke, then the next day, it let go and dumped a sump worth of oil down the exhaust as the shaft snapped and the turbo collapsed internally, nasty.

As has been said already Mrs Mopp, I wouldn/t worry about yours, sounds fine and dandy if its holding boost etc.

Ross

**855t5r** · Thursday 31st March 2005, 23:01

Mine doesnt whistle as such...it sounds more like a manic Dyson Vacuum cleaner at full flight!!!!

**Wobbly Dave** · Friday 1st April 2005, 02:25

as you know mine (and Andrew's) are both brand new and both whistle.

The cbv (especially with the drilled box bottom) gives a very nice whoosh on throttle close. Which is why I like tunnels quite a lot. yay!

I know you are bothered by the lack of umph at the mo. It will be sorted very soon - trust me! New tstat can go on tomorrow when you get to J's?

**Mrsmopp** · Friday 1st April 2005, 08:49

I'm not worried about my turbo - its purely a reference question! My turbo works perfectly well its a few other bits that are causing the drop in boost.

x

**Mrsmopp** · Friday 1st April 2005, 10:07

Originally Posted by dave850R

as you know mine (and Andrew's) are both brand new and both whistle.

The cbv (especially with the drilled box bottom) gives a very nice whoosh on throttle close. Which is why I like tunnels quite a lot. yay!

I know you are bothered by the lack of umph at the mo. It will be sorted very soon - trust me! New tstat can go on tomorrow when you get to J's?

It can wait til Avon Hun cos I'm not sure what time I'll get to his tonight.

Fank woo!

x

**Mrsmopp** · Friday 1st April 2005, 10:17

Actually - scrap that last comment!

If you could fit it tonight I'd be grateful, it'll give my ECU time to readjust then!

I'll txt you when I get to J's if thats ok?

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