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I am sick of this!


Pig

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the basic cause stems from a number of things, possibly fitting a less restrictive intake (cone filter etc) and have a dump valve that can't cope with the boost

 

taken from here http://www.fiestaturbo.com/articles/rsttuning/

 

>A side effect of this is that if the car is run without a dump valve the turbo blades stall slightly between gear changes and the airflow is amplified through the filter producing a loud fluttering 'chatter' noise.

 

which is my understanding, it is turbo stall...

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Surely someone has the answer to this! There are so many experts out there!

I described to noise on the phone to one tuner and he has suggested re-circulating the dump. So what is it with the "actu thing me" dave is on about????

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Surely someone has the answer to this! There are so many experts out there!

I described to noise on the phone to one tuner and he has suggested re-circulating the dump. So what is it with the "actu thing me" dave is on about????

take the blow of valve of and you will have the noise your after

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lol :)

 

that explanation does agree with my own experience too, because whilst the actuator was uprated, an aftermarket induction was fitted, from that point on it always made the sound without any special driving, not saying you need either, but it is probably the combination of the two that make the noise... but other setups maybe can achieve similar sounds

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try reading the posts!!!!! :p

 

Was that for me, re your 20.25 post? While in theory this sounds fine (and makes sense) its not what I've heard mentioned on the forum here as the cause of the 'fluttery' sound most singles make. Almost all posts refer to it as wastegate chater, not turbo stall.

 

I'd just like someone who knows their single setups inside-out to confirm this as the reason (eg Terry). I don't mean any disrespect mate.

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Was that for me, re your 20.25 post? While in theory this sounds fine (and makes sense) its not what I've heard mentioned on the forum here as the cause of the 'fluttery' sound most singles make. Almost all posts refer to it as wastegate chater, not turbo stall.

 

I'd just like someone who knows their single setups inside-out to confirm this as the reason (eg Terry). I don't mean any disrespect mate.

 

hey no probs :) I'm only trying to help and relay my experiences on a car that didn't do it and then did it on demand after some simple mods (and it was single lol by design). Like I say, there may be more than one way to achieve it. Major turbo stall is potentially bad for the turbo life, but on my set up it did no harm.

 

PS was aimed at pig more than anyone else anyway!

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