Bleed Valve?

1.8 I4 20v turbo - 207bhp
1.8 I4 20v turbo - 222bhp
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JaseS3
1st Gear
Posts: 78
Joined: Thu Aug 13, 2009 4:08 pm

Bleed Valve?

Post by JaseS3 » Tue Sep 22, 2009 2:25 pm

Hi all,

Has anyone ever attempted to put a bleed valve on an S3 8l?

david7m
Top Gear
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Joined: Sat Sep 13, 2003 5:52 pm
Location: West Midlands, UK

RE: Bleed Valve?

Post by david7m » Tue Sep 22, 2009 3:47 pm

What does that do?

Dave
APR 270bhp S3, Mixer K6 750

Cheap performance tip - lie the rear seats flat Image

JaseS3
1st Gear
Posts: 78
Joined: Thu Aug 13, 2009 4:08 pm

RE: Bleed Valve?

Post by JaseS3 » Wed Sep 23, 2009 2:43 pm

well, in the old days of turbo's (talking carbs and old efi lumps) modders would put a bleed valve onto the actuator to bleed of preasure keeping the wastegate closed for longer. i.e. more boost. but on new cars i know it can play up the ecu.

just wondering if anyone has tryed it.
Audi S3 8L 2002
Audi A4 Avant 1.9 Quattro Sport 2004

david7m
Top Gear
Posts: 2117
Joined: Sat Sep 13, 2003 5:52 pm
Location: West Midlands, UK

RE: Bleed Valve?

Post by david7m » Wed Sep 23, 2009 3:45 pm

I see. I haven't heard of this before on an S3.

Dave
APR 270bhp S3, Mixer K6 750

Cheap performance tip - lie the rear seats flat Image

JaseS3
1st Gear
Posts: 78
Joined: Thu Aug 13, 2009 4:08 pm

RE: Bleed Valve?

Post by JaseS3 » Thu Sep 24, 2009 1:41 pm

like i said dave, its old school.
i did put one on a mates Mk 1 323 turbo and the ecu didn't like it one bit.
but on old renault 5's and RS Turbos it made some extra power.
i just wonder if anyone has tryed it.
Audi S3 8L 2002
Audi A4 Avant 1.9 Quattro Sport 2004

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