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Author Topic: chatter sound  (Read 2418 times)

Offline turboben

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chatter sound
« on: 16 September 2009, 21:25 »
my golf has an annoying dump valve to make it chatter do i just remove the dumpvalve and block it up

cheers ben
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Offline danny_p

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Re: chatter sound
« Reply #1 on: 16 September 2009, 23:53 »
it shouldnt chatter !!!!!     and you need a "dump" valve   or  a recirculation valve  it soposed to go to the low pressure side of the induction system but after the AFM.

chattering is bad tho sounds like a bit of turbo surge
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Offline Dan34

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Re: chatter sound
« Reply #2 on: 17 September 2009, 00:02 »
doesnt chatter mean the diaphragm in the dv is feggered? i could be wrong on that though!

Dan
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Offline mac456

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Re: chatter sound
« Reply #3 on: 24 September 2009, 11:57 »
Quote from: Dan34 on 17 September 2009, 00:02
doesnt chatter mean the diaphragm in the dv is feggered? i could be wrong on that though!

Dan

yeap!, mine was like that change to a forge and no more chatter
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Offline turboben

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Re: chatter sound
« Reply #4 on: 24 September 2009, 23:43 »
i have the forge item but i perfer the sound of a chatter it sounds a bit more meatier rather than like a bus

why is it bad for these to chatter are the turbos that weak??
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Offline Dalo Harkin

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Re: chatter sound
« Reply #5 on: 29 September 2009, 14:05 »
When it 'chatters' something is wrong (normally with the DV itself) such as the diagphragm (spelt right  :laugh:)
When I had the standard Bosch one it used to be louder but it did chatter, replaced with a Forge and its miles better, but not as loud.
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ARZ K03s, Oettinger Side Skirts, R32 front, Carbon stage 2, Forge 007p (yellow spring), Forge Actuator (yellow spring), Pipercross panel filter with DSG parts, N249 and N112 deleted, SAI deleted, Carbon canister deleted, Rear wiper deleted, Long Life turbo back custom exhaust with 200 cell sports cat, VR6/G60 clutch kit, Creation Motorsport TIP, Catch can, 'Wellycooler', K04 charge pipe, S3 ported inlet manifold - looks pretty standard on the outside though :)

Offline turboben

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Re: chatter sound
« Reply #6 on: 29 September 2009, 20:56 »
why is it bad to chatter its just charge air coming back threw the turbo when the throttle body is shut all my rs turbos have done it and had no problems it must just be the golf turbos just are not as strong
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Offline barry-gti

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Re: chatter sound
« Reply #7 on: 29 September 2009, 21:23 »
yeah i think its where the air is being pushed the wrong way through the turbo and its going over the fins in the opposite direction. and yes the golf's turbo's are not as strong
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Offline Chris-White

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Re: chatter sound
« Reply #8 on: 29 September 2009, 23:06 »
chatter is compressor stall. It means you'll have to spin the turbo back up when you change gear or come off the accelerator = more lag.

they do chatter a bit more with a KnN style panel filter in place.
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Offline Cexy_ratt

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Re: chatter sound
« Reply #9 on: 09 October 2009, 08:13 »
i have a 2.0 golf gti , and its my first everyday N/A car in 5 years lol

The chatter isnt all bad, is basically the charge being pushed the wrong way through the induction system and turbo> release throttle, throttle plate shuts, air has to go one way and gets cut up by the blades on the turbo > hey prestoo turbo chatter

NOT Wastegate chatter. Not a problem , unless your running 2bar plus really. The DVs release the pressure obv for quick spool up but on high pressure vehicles, my RS500 runs 2 bar with maram shaft, it stops the shaft being shat out
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