GolfGTIforum.co.uk

Model specific boards => Golf mk4 => Topic started by: Sonic B0000M on 06 June 2014, 10:18

Title: Cone filter sounds like i've got a dump valve on?
Post by: Sonic B0000M on 06 June 2014, 10:18
I put a cone filter and a Forge Splitter on a few weeks back. Lost power so took the forge off and correctly put airflow to the cone filter.

Now it's rapid and pulls like never before, but it still sounds like i have the Forge on. A serious dump sound when i let off the Gas.

So my question is, why? Do i have a boost leak or something, or is this normal for the Stock DV to do?
Title: Re: Cone filter sounds like i've got a dump valve on?
Post by: MoMartin on 06 June 2014, 11:00
Are you sure you had the forge recirc valve fitted correctly? Because when I first got my car my recirc valve was installed solely as a DV, which resulted in a loss of power until it was installed correctly. Also, which forge valve did you buy? Because they recommend the 007p or the 008 for the vw golf 1.8t
Title: Re: Cone filter sounds like i've got a dump valve on?
Post by: Perryd84 on 06 June 2014, 12:10
If its a forge split-r you have to install it the reverse way to the standard one.

I got mine set as full recirculate and still gives a good dump, which sounds lot louder after fitted new cold air intake.
Title: Re: Cone filter sounds like i've got a dump valve on?
Post by: mcgee9t2 on 06 June 2014, 12:42
when you took it off i assume you put the stadard diverter valve back on?

that will dump the air back into the tip, as you have a cone filter on theres not that far for the sound to travel.

when you have panel filter the noise travels up the tip, into the air box where it is muffled etc therefore not as loud
Title: Re: Cone filter sounds like i've got a dump valve on?
Post by: Sonic B0000M on 06 June 2014, 12:47
Yeah it was the Split R. Now its off it still dumps almost as loud.
Title: Re: Cone filter sounds like i've got a dump valve on?
Post by: dom on 06 June 2014, 13:05
The S2000 filter is loud, mine does the same. It's nothing to worry about.
Title: Re: Cone filter sounds like i've got a dump valve on?
Post by: Dizzie on 06 June 2014, 16:22
they tend to be like that when you go from box to cone.

might actually try it with my TDI and see what happens :D
Title: Re: Cone filter sounds like i've got a dump valve on?
Post by: rio_gti on 06 June 2014, 18:31
I like the sound of a diesel when you hear the dv out the exhaust!!!