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Author Topic: turbo chatter  (Read 3826 times)

Offline GTIcheeseman

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turbo chatter
« on: 05 June 2012, 14:59 »
What is it that makes that chatter or flutter is it an external wastegate?
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Offline Chris#101

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Re: turbo chatter
« Reply #1 on: 05 June 2012, 16:42 »
Turbo chatter is the turbo stalling spinning one way to the other very quickly if I remember correctly!

Vaccum is the cause to this I believe or if you dont any sort of dump valve
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Offline GTIcheeseman

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Re: turbo chatter
« Reply #2 on: 05 June 2012, 16:46 »
So when your hear these cars just means they don't have a dump valve don't seem safe
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Offline Dolly

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Re: turbo chatter
« Reply #3 on: 05 June 2012, 16:59 »
if what i understand is right, you cant have external waste gates any more, well not new cars, something to do with the fact your putting exhaust gas (emissions) into the atmosphere unregulated?

chatter on the bmw twin turbo petrols is the internal waste gates being loose, they need adjusting
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Offline conor1

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Re: turbo chatter
« Reply #4 on: 07 June 2012, 18:57 »
Quote from: Chris#101 on 05 June 2012, 16:42
Turbo chatter is the turbo stalling spinning one way to the other very quickly if I remember correctly!

Vaccum is the cause to this I believe or if you dont any sort of dump valve

wrong there is no way the tubo spins one way to the other very quickly do you know how many rpm's a turbo does i guess not. it is the noise of the air being pushed back against the turbo blades but in no way is stoping the turbo spinning or reversing this is caused by running no dump valve.
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Offline tech1889

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Re: turbo chatter
« Reply #5 on: 07 June 2012, 19:39 »
My daily chatters very loud i love it  :evil: all i did was remove the turbo you cant really do this on vag engines as they run recirc turbos
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Offline Gambit

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Re: turbo chatter
« Reply #6 on: 08 June 2012, 09:41 »
aye its just air being pushed back over the turbo veins the wrong way. i run without a dumpvalve on my impreza - car is actually a bit snappier changing between the gears without the dumpvalve

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Offline Wazzzer

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Re: turbo chatter
« Reply #7 on: 08 June 2012, 15:00 »
It's fine for Garrett or bigger turbos but not for the K series turbos really. I used to love the sound of my Escort, just had a cone filter directly on the side of the turbo inlet and no DV lol
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Offline scarr89

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Re: turbo chatter
« Reply #8 on: 08 June 2012, 16:37 »
Quote from: Wazzzer on 08 June 2012, 15:00
It's fine for Garrett or bigger turbos but not for the K series turbos really. I used to love the sound of my Escort, just had a cone filter directly on the side of the turbo inlet and no DV lol

Would have loved to see that!  :laugh:

Is turbo chatter the same as 'turbo bark'. On my bros DERV he has a miltek decat DP, 2.5" and when changing gear and lifting off it makes some sort of owl noise...Is this the sound you guys get to? :undecided:
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Offline tech1889

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Re: turbo chatter
« Reply #9 on: 09 June 2012, 20:02 »
thats chatter yer mate,, my turbo just has a airfilter straight on end of it.. k series turbos can chatter but no point
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