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Model specific boards => Golf mk4 => Topic started by: m4dd on 29 November 2007, 20:24

Title: no noise from dump valve ?
Post by: m4dd on 29 November 2007, 20:24

hi, ive got a mk4 golf 1.8turbo,i recently fitted a bailys dual piston dump valve but theres no noise coming from it. does anyone have any ideas why this is?
cheers

Title: Re: no noise from dump valve ?
Post by: richw911 on 29 November 2007, 20:34

Is it a recirculating dump valve?

Title: Re: no noise from dump valve ?
Post by: m4dd on 29 November 2007, 20:56

no its not mate.

Title: Re: no noise from dump valve ?
Post by: th3man1ac on 30 November 2007, 20:13

You really do not want a Dump Valve if you have a 1.8T. It will cause your car to run rich whilst changing gear and possibly get a Check Engine Light. Some more mechanically minded people will be able to help with correct terminology and more detailed information.

Seems weird it makes no noise at all. I have a Miltek high flow cat, cat back, revo stage 1 remap and even when my plastic Bosch valve was fitted it made a slight "Whoosh" noise.

I have a Forge Split-R Hybrid valve now and can not fault it. Makes a "Whoosh" noise. Not quite as good sounding as a 100% Blow Off Valve as its split. I believe it is 60% Recirculate 40% Atmosphere so you get a kind "Whoosh" cross waste gate opening sound.

Title: Re: no noise from dump valve ?
Post by: ian00uk on 01 December 2007, 11:38

when i brought my 1.8t it had a atmospheric dump valve on and every week the light was coming on with faults and fuel being too rich caused by this dump valve. ive now got a forge splitter valve with blow off and cant fault it.sounds good and no faults  :smiley: