what happens if by-pass valve goes down?

2.2 I5 20v turbo - 315 bhp
Post Reply
timucin
4th Gear
Posts: 525
Joined: Fri Oct 03, 2003 2:05 am
Location: istanbul-TR
Contact:

what happens if by-pass valve goes down?

Post by timucin » Fri Jan 09, 2004 12:32 am

what happens if by-pass valve goes down?
what effects?
Quattro

User avatar
DAVIDP20V
2nd Gear
Posts: 239
Joined: Tue Apr 22, 2003 9:45 am
Location: Buckinghamshire
Contact:

Re: what happens if by-pass valve goes down?

Post by DAVIDP20V » Fri Jan 09, 2004 9:18 am

Boost wont build up, when mine went it just didnt feel like the car was pulling. hey presto changed it and 21 psi of boost and lots of power. [img]images/graemlins/clap.gif[/img]
Davidp20v
Rs2. Polar Silver. Was Standard 315 bhp. now with de-cats, cone filter, forge diverter valve. samcos next, then chip

timucin
4th Gear
Posts: 525
Joined: Fri Oct 03, 2003 2:05 am
Location: istanbul-TR
Contact:

Re: what happens if by-pass valve goes down?

Post by timucin » Fri Jan 09, 2004 10:16 am

boost completely gone or sometimes goes sometimes comes?
Quattro

User avatar
DAVIDP20V
2nd Gear
Posts: 239
Joined: Tue Apr 22, 2003 9:45 am
Location: Buckinghamshire
Contact:

Re: what happens if by-pass valve goes down?

Post by DAVIDP20V » Fri Jan 09, 2004 12:58 pm

the gauge would register it boosting but it couldnt hold the boost
Davidp20v
Rs2. Polar Silver. Was Standard 315 bhp. now with de-cats, cone filter, forge diverter valve. samcos next, then chip

Kramrs2
Neutral
Posts: 25
Joined: Wed Jan 22, 2003 2:17 am
Location: São Paulo, Brasil
Contact:

Re: what happens if by-pass valve goes down?

Post by Kramrs2 » Fri Jan 09, 2004 6:17 pm

Sometimes, depending on how you apply power and at which rpm and load, you'll have peak boost but it cant hold it. And the other problem is overspeeding the turbo, cause the ECU tries to hold the boost up.

Kramrs2
Neutral
Posts: 25
Joined: Wed Jan 22, 2003 2:17 am
Location: São Paulo, Brasil
Contact:

Re: what happens if by-pass valve goes down?

Post by Kramrs2 » Fri Jan 09, 2004 6:20 pm

I forgot the noise.
If you are running on conical filter, you could hear a ciclical noise when you release the throttle. Like
"TTCCHHIII. . .TThhiii...tthhii...thchi..." Like a normal discharge noise plus echoes of it in lower volume.

timucin
4th Gear
Posts: 525
Joined: Fri Oct 03, 2003 2:05 am
Location: istanbul-TR
Contact:

Re: what happens if by-pass valve goes down?

Post by timucin » Sat Jan 10, 2004 2:27 am

mine can be gone....
Quattro

Post Reply

Return to “RS2 (B4) 1994-1995”

Who is online

Users browsing this forum: No registered users and 6 guests