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Model specific boards => Golf mk4 => Topic started by: Flipmode on 27 March 2005, 19:30

Title: Dump valve performance
Post by: Flipmode on 27 March 2005, 19:30

Hey guys.

subject to the recent threads regarding dump valves over the last week or so, can anyone tell me whether the forge motorsport DV006 piston style valve would actually reduce performance on a standard non-chipped turbo when compared to the stock diaphragm unit?? need to replace mine soon and don't know which to go for.   :undecided:

many thanks   :smiley:

Title: Re: Dump valve performance
Post by: BOGGLE on 29 March 2005, 00:07

I'm sure someone will correct me but i can't see how it would reduce performance :undecided:

Title: Re: Dump valve performance
Post by: Flipmode on 29 March 2005, 00:14

thanks, that was the answer i was looking for !!

i'm a total novice under the hood but thought that the car might need to produce more turbo pressure to shift the piston in the forge dv006 that it would to shift the lighter diaphragm in the stock unit....maybe that would create more lag/be less responsive for 150bhp car?? anyway, sure u guys know lot more than me about this stuff

thanks for the knowledge !

 :smiley:

Title: Re: Dump valve performance
Post by: topher on 29 March 2005, 00:24

piston type valves react slightly slower than diaphragm ones.. but you're talking milliseconds, i've tried both and didn't notice any difference

Title: Re: Dump valve performance
Post by: Flipmode on 29 March 2005, 01:10

thanks topher,

will buy myself a longer lasting piston stylee valve in that case.

 :wink:

Title: Re: Dump valve performance
Post by: noobdubber on 21 May 2005, 15:12

I havent done any mods to my 1.8T, which I got today :grin:
So would it make any difference at all if I put a forge diverter valve on?
would I get any performance increase, or would I be bestter off waitinf until I eventually get it chipped?

Title: Re: Dump valve performance
Post by: Dizzie on 21 May 2005, 19:22

I was told to go for the 007 as it's slightly smaller than the 006, but is practically the same in function.

change your air filter if you want a flutter when you let off :D

Title: Re: Dump valve performance
Post by: boxxer1973 on 21 May 2005, 22:13

get the correct spring for your forge dump valve as a strong spring will not close and you will lose boost .they are only cheap anyhow

Title: Re: Dump valve performance
Post by: MrJoseph.com on 23 May 2005, 15:14

I got one at inter 05 and it makes the car more responsive on the accelerator.

Title: Re: Dump valve performance
Post by: GaryM on 26 May 2005, 21:56

Quote from: boxxer1973 on 21 May 2005, 22:13

get the correct spring for your forge dump valve as a strong spring will not close and you will lose boost .they are only cheap anyhow

They are supplied with the green spring which is the softest option anyway, its both fine for stock and chipped cars.

How about a Forge Optimus DV?
Its an uprated Diaphragm Diverter Valve with an adjustable top so no need to change springs, just twist to make it harder or softer.
So you get the best of all the worlds, fast, strong and adjustable.

http://www.forgemotorsport.co.uk/content.asp?inc=product&cat=1703&product=FMDVOPT

I have a polished chrome one here doing nothing, used for 1 weeks testing and now for sale if anybody is interested.

Title: Re: Dump valve performance
Post by: noobdubber on 27 May 2005, 06:05

How much are you after for it? :laugh:

Title: Re: Dump valve performance
Post by: GaryM on 27 May 2005, 22:08

Quote from: noobdubber on 27 May 2005, 06:05

How much are you after for it? :laugh:

How about £60 delivered?
Bargain!!