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Author Dump Valves?
NovaGTE
Member
Registered: 16th Dec 02
User status: Offline
26th Feb 05 at 16:09   View User's Profile U2U Member Reply With Quote
I haven't a clue about these, are they specific to makes and models of cars or do u just get any dump valve

also how much and where from

Cheers
corsa5dr
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Registered: 12th Jan 03
Location: Bath/Bristol - Evo 4 GSR
User status: Offline
26th Feb 05 at 16:12   View User's Profile U2U Member Reply With Quote
Could see this coming.
I would have though they are specific to the car.
pppptsssssssscccchhh
Marc
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Registered: 11th Aug 02
Location: York
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26th Feb 05 at 16:12   View User's Profile U2U Member Reply With Quote
FFS, leave the one you have alone.
corsa5dr
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Registered: 12th Jan 03
Location: Bath/Bristol - Evo 4 GSR
User status: Offline
26th Feb 05 at 16:14   View User's Profile U2U Member Reply With Quote
Also to my knowledge there are two types, atmospheric and recirculating, one is better for performance and the other for noise IIRC. Cant remember which though.
Marc
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Registered: 11th Aug 02
Location: York
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26th Feb 05 at 16:15   View User's Profile U2U Member Reply With Quote
Theres also the dual type.
corsa5dr
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Registered: 12th Jan 03
Location: Bath/Bristol - Evo 4 GSR
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26th Feb 05 at 16:16   View User's Profile U2U Member Reply With Quote
Nismo
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Registered: 12th Sep 02
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26th Feb 05 at 16:17   View User's Profile U2U Member Reply With Quote
i have 2 as standard
Tom
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Registered: 3rd Apr 02
Location: Wirral, Merseyside
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26th Feb 05 at 16:18   View User's Profile U2U Member Reply With Quote
I think a dv on an astra is gonna sound/look daft
Rob H
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Registered: 28th Oct 00
Location: Staffordshire Drives: Astra SRi
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26th Feb 05 at 16:21   View User's Profile U2U Member Reply With Quote
The Dv's i heared on the GSi's etc at PVS sounded real nice . Also made a lovely wastegate chatter when pulling round to run up the strip .
Marc
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Registered: 11th Aug 02
Location: York
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26th Feb 05 at 16:21   View User's Profile U2U Member Reply With Quote
What, the dv made a nice wastegate chatter???
Craig W
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Registered: 31st Oct 00
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26th Feb 05 at 16:21   View User's Profile U2U Member Reply With Quote
DV's on Astra's don't sound too good, kinda like a wimpy sneeze.
Adam-D
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Registered: 11th May 02
Location: Cheshire
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26th Feb 05 at 16:25   View User's Profile U2U Member Reply With Quote
i have a twin piston one

it depends where the airflow meter is
jr
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Registered: 20th May 02
Location: Kent
User status: Offline
26th Feb 05 at 16:26   View User's Profile U2U Member Reply With Quote
dump vavles dont make wastegate chatter, in fact its proberly not the wasgate making the noise either, its tubo flutter

 
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