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Author Topic: Whistle even with DV Rev D  (Read 5160 times)

Offline johnhol78

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Whistle even with DV Rev D
« on: March 31, 2011, 10:17:48 am »
Swapped the Diverter valve after a few weeks of owning the car and found 6 hoes/slits in it  :surprised:

Since then it's been ok, had a Revo trial which was great though I really notice a whistle while accelerating. This is supposed to be very feint though it's noticeable even with the windows up.

Anyone any suggestions? Sounds like a boost leak but can this be easily diagnosed?
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Offline Richn83

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Re: Whistle even with DV Rev D
« Reply #1 on: March 31, 2011, 10:36:57 am »
You should still have a whistle from the Turbo spinning, or you could have a split pipe somewhere else.  Best bet is to VCDS log your boost.
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Offline PDT

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Re: Whistle even with DV Rev D
« Reply #2 on: March 31, 2011, 11:51:26 am »
Is the whistle only apperent under load?
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Offline johnhol78

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Re: Whistle even with DV Rev D
« Reply #3 on: March 31, 2011, 12:12:54 pm »
Quote from: PDT on March 31, 2011, 11:51:26 am
Is the whistle only apperent under load?

Yep, almost like the whistle yuou get when DV (old one) has gone but I have new revision D.
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Offline Richn83

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Re: Whistle even with DV Rev D
« Reply #4 on: March 31, 2011, 01:37:55 pm »
Check the DV is still nice and tight then check for boost leaks elsewhere, if your previous DV was loosing boost then the rest of the system probably hasnt been under pressure for awhile and REVO map will have upped the amount supplied so it could have blown a hose or split a hose that was on its way out.
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Offline PDT

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Re: Whistle even with DV Rev D
« Reply #5 on: March 31, 2011, 09:31:44 pm »
My old gti did this, sounded like an air leak on the turbo intake pipe (as if it was right behind the dash clocks) but never found the cause, so gave up looking, then one day it stopped, very odd one.
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Offline johnhol78

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Re: Whistle even with DV Rev D
« Reply #6 on: March 31, 2011, 11:05:14 pm »
Quote from: PDT on March 31, 2011, 09:31:44 pm
My old gti did this, sounded like an air leak on the turbo intake pipe (as if it was right behind the dash clocks) but never found the cause, so gave up looking, then one day it stopped, very odd one.

Well Paramount said it ran great and couldn't find any faults and the dyno showed no lose in boost.....

Still think it's loud....more so since the remap...

Need someone to come on a  :driver: with me a have a listen.
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Offline rich83

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Re: Whistle even with DV Rev D
« Reply #7 on: March 31, 2011, 11:09:56 pm »
Quote from: johnhol78 on March 31, 2011, 11:05:14 pm
Quote from: PDT on March 31, 2011, 09:31:44 pm
My old gti did this, sounded like an air leak on the turbo intake pipe (as if it was right behind the dash clocks) but never found the cause, so gave up looking, then one day it stopped, very odd one.

Well Paramount said it ran great and couldn't find any faults and the dyno showed no lose in boost.....

Still think it's loud....more so since the remap...

Need someone to come on a  :driver: with me a have a listen.

Well im in harrow... you can come around and we can compare whistles!  :signLOL:
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Offline johnhol78

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Re: Whistle even with DV Rev D
« Reply #8 on: March 31, 2011, 11:13:28 pm »
Quote from: richwig83 on March 31, 2011, 11:09:56 pm
Quote from: johnhol78 on March 31, 2011, 11:05:14 pm
Quote from: PDT on March 31, 2011, 09:31:44 pm
My old gti did this, sounded like an air leak on the turbo intake pipe (as if it was right behind the dash clocks) but never found the cause, so gave up looking, then one day it stopped, very odd one.

Well Paramount said it ran great and couldn't find any faults and the dyno showed no lose in boost.....

Still think it's loud....more so since the remap...

Need someone to come on a  :driver: with me a have a listen.

Well im in harrow... you can come around and we can compare whistles!  :signLOL:

Well mine will be bigger than yours  :grin:

Any day this weekend??
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Offline rich83

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Re: Whistle even with DV Rev D
« Reply #9 on: March 31, 2011, 11:15:10 pm »
Quote from: johnhol78 on March 31, 2011, 11:13:28 pm
Quote from: richwig83 on March 31, 2011, 11:09:56 pm
Quote from: johnhol78 on March 31, 2011, 11:05:14 pm
Quote from: PDT on March 31, 2011, 09:31:44 pm
My old gti did this, sounded like an air leak on the turbo intake pipe (as if it was right behind the dash clocks) but never found the cause, so gave up looking, then one day it stopped, very odd one.

Well Paramount said it ran great and couldn't find any faults and the dyno showed no lose in boost.....

Still think it's loud....more so since the remap...

Need someone to come on a  :driver: with me a have a listen.

Well im in harrow... you can come around and we can compare whistles!  :signLOL:

Well mine will be bigger than yours  :grin:

Any day this weekend??

Ill be around sunday late afternoon evening. If your not working tomorrow that could be an option!
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Offline johnhol78

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Re: Whistle even with DV Rev D
« Reply #10 on: March 31, 2011, 11:21:10 pm »
Working unfortunately  :sad1:

Off to Park Royal after work to DPD....

Would need a road to 'test' the whistle....not sure Harrow has many off them, or do they.
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Offline rich83

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Re: Whistle even with DV Rev D
« Reply #11 on: March 31, 2011, 11:24:53 pm »
Quote from: johnhol78 on March 31, 2011, 11:21:10 pm
Working unfortunately  :sad1:

Off to Park Royal after work to DPD....

Would need a road to 'test' the whistle....not sure Harrow has many off them, or do they.

Ohhh yes!!



:happy2:
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Offline Gti_Mad

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Re: Whistle even with DV Rev D
« Reply #12 on: April 01, 2011, 07:23:28 am »
Were bouts are u bud ???
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Offline johnhol78

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Re: Whistle even with DV Rev D
« Reply #13 on: April 01, 2011, 09:12:01 am »
Live in Uxbridge

Work in Cobham..  :happy2:
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Offline johnhol78

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Re: Whistle even with DV Rev D
« Reply #14 on: April 01, 2011, 10:30:36 am »
Well here are the Dynos....

214 was Stock Revo
182 was Revo valet after they tried reading the map (sneaky gits)
229 was straight after remap - been told they will re dyno the car next Friday and if it's not improved (they say it should by around 8bhp) then they will continue to tweak the map.  :happy2:



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