Change Dump valve or leave it alone!
18 May 2005 | 01:21 PM
#1
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Scooby Newbie
Joined: Dec 2004
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Change Dump valve or leave it alone!
Just wondered do I leave my OE dump valve on (STI ) 02 Plate, or do I get a new one. Dont really want the noise so would a recirculating type be best? Not sure as it is my first scooby. Cheers Ade
18 May 2005 | 01:28 PM
#3
Scooby Regular
Joined: Jan 2003
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From: 535D M-Sport Touring
The only reason to change the dumpvalve is if you want the noise of a VTA one. Otherwise leave well alone, the OEM one does a very good job. If you search you will find many cons of VTA valves, over fuelling, bore wash etc.
The only other possible reason to change is if you wanted to run very high boost, the standard one has been know to leak at high pressures, but not at the boost levels a standard STI runs.
The only other possible reason to change is if you wanted to run very high boost, the standard one has been know to leak at high pressures, but not at the boost levels a standard STI runs.
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