Might sound like a dumb question, but how to i get the `flutter` noise when changing gear instead of the usual dump valve going off?

Its on a T5

Cheers, Ed.

 

take off your dump valve fit a induction kit job done

 

lob the DV in the bin .then kiss your turbo goodbye

 

Just put your head out the window and go fliterrrrrrrr

 

or record my car onto a cd and play it really loud on your stereo

 

I take it don`t do the turbo any good then?

 

turbos can run ok without dump valves

 

My GT30 doesn't seem to mind. I have been running close to 2-bar of boost for ages now with no dump valve.

 

I would LOVE to know how you get WASTEGATE to flutter, chatter or make any noise for that matter?

 

u getting technical

 

PMSL Euan, here we go again!!

There needs to be a sticky thread highlighting why it isn't the Wastegate that is making the noise!!!

OK, so it's the Compressor blades squirming in the backdraft that makes the noise, but I think it sounds worse than it is.

 

I have thought of a way....


Stick a pigeon in your air box and go for a run...

when it hits full boost it should be sucked in and.........................flutter

 

i can get my waste gate to chatter euan

take all the pre load off the wastegate arm ,and the wastegate chatters around at idle

 

if the wastegate ever fluttered it would be fooked within minutes as would your turbo.

Im with Christian....we should get a sticky up then atlest we would be the only forum on the net with fully clued up members


How cool are we

 

You have achived the impossible...you should be on that heros programme

 

ice fella

 

Im constantly amazed at the amount of people that only own a turbo car for the 'Chatter' or 'Whoosh'.

 

stick a k+n on it bruv

 

the cheap shitter R5 gang

 

I bought my turbo car for its power and the fact i didn`t even pay a grand for it, not because it goes `Whoosh`.

 

why are you asking us how to make it woosh then?


Fit a super dooper wooshy valve and it will do it

joking aside mate you need to remove the airbox as this acts as a silencer.

 

And me...makes me laugh really - everyones like 'bruv your dumpvalves PHAT man!'

 

Thankyou, thats all i needed to know. If i`ve got the option to do it, then why not IMO.

 

does not the sound expel via the air filter. ive been asked and i would like to know myself

 

Why not do as I do and have ALL THREE.
I can have whoosh, no noise or chatter, at the flick of two switches.
I have put on two dump valves one recirc, one atmo for loud/quiet but if both turned off you get chatter, less than Ł10 as well.
tabetha

 

V6 EDC - My remark wasn't directly specifically at you.

Avid-fan - Sorry, I don't understand what you mean. The air-filter is irrelevant, a car will 'chatter' with or without an air filter.

 

sorry will try to explain better.as my car has a recirc dump valve it has no loud whoosh noise

but very loud chatter.

i know its air backdraft through the turbo..but where is the sound actually emitting from

when it comes out of the car ??

 

If you have 'chatter', then your dump valve isn't really doing its job properly. The trouble is, to get the valve to be effective at higher boost, it may be too strong and won't blow at lower boost levels, meaning that you will still get some 'chatter'. However, if it is set up soft, so that you get no 'chatter' it may leak in high rpm low load situations.

This is why we generally don't use them.

Also, the sound is emitted from the intake of the turbo.

 

thats not the best idea you have come up with! as the dump valves WILL leak if they have there signal hose turned off as the pressure differential accross the diaphragm will be high

 

I used to respect you so much

 

So you are assuming I have not changed the springs etc and altered the vac lines via restrictors then ?
tabetha

 

Is that really relevant?

You have a dump valve "on demand", which means you ONLY have it for "impressing" pedestrians.

 

why bother asking

 

Indeed

Tabetha goes from PF Hero to PF Zero in a single thread.

 

i am assuming,,,

 

i need to refit my dump valve on my saff (as advised my NMS)

but cant remember how to plump it in

where does the little pipe from the top of the DV go?

 

into the inlet manifold i think.

What turbo you running then?

 

A detailed explanation of compressor stall/chatter HERE

 

the MLR has a monthly magazine for members called Wastegate Chatter