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Discussion Starter · #1 ·
Thinking about a dump valve jus have one or 2 questions.:)

1.Will there be more HKS ones availible?
2.Will it affect my warranty?
3.Could someone with no real clue fit this easy enough?
4.Will it affect performance or damage engine in anyway?
5.Is it easy to remove and refit if my car needs to go too dealer?
6.If i cant get an HKS one whats a good alternative and any example videos or sound files of noises? If not how does it compare to the HKS?

Cheers guys :)
 

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Premium Member
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14,297 Posts
W3bD3vil said:
Thinking about a dump valve jus have one or 2 questions.:)

1.Will there be more HKS ones availible?
2.Will it affect my warranty?
3.Could someone with no real clue fit this easy enough?
4.Will it affect performance or damage engine in anyway?
5.Is it easy to remove and refit if my car needs to go too dealer?
6.If i cant get an HKS one whats a good alternative and any example videos or sound files of noises? If not how does it compare to the HKS?

Cheers guys :)
1. speake to jon seal.
2. no it will not
3. yes if you take your time
4. will not damage the car and should not hinder the performance
5. yes to clips and job done, takes 20 mins
6.get the hks one of the copy one, better than a standard DV.
 

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10,543 Posts
Is there any point to a dump valve other than the noise? :D

Does it make any noticeable difference to turbo lag or anything?
 
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Discussion Starter · #5 ·
i run one, but think am gonna remove, i also feel mine runs better without, its also supposed to prolong turbo life aswell.
 

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8,209 Posts
will do

re the running issues I've looked into this and I think I have a cure. mine had that problem with the Forge one I had but it went away when I fitted an air filter which was strange

I was reading up on the VX220 forum as they are a car I have heard have bad problems running a second dump valve. I think the answer is the airflow meter anticipates a certain volume of air passing it when the throttle butterfly shuts, as a second valve removes more air than the airflow meter anticipates it feeds this back to the ECU and causes a blip in the fuelling, or maybe it opens the butterfly back up??

So basically a blanking plate for the standard dump valve should completely cure any minor blips by restoring the airflow meter readings to normal. I have one on the way from forge which I thought I'd try on mine as the wooshy sound from the standard one does my head in a bit with the air filter on. Obviously forge have had this issue with theirs as they supply the blanking plate with their kit. Its an eye watering £25 quid on its own though so if theres any demand for them I'll look into getting some fabricated
 
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Discussion Starter · #15 ·
u heard owt on these jon, i keep gettin the injector fault with mi remap, could do wi one asap
 

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I've ordered one off forge uk should be here midweek next week, they offered next to no discount on them though so people might be better off contacting forge dirtectly to order them, but when its fitted I'll post some info to let you know if its helped
 
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Discussion Starter · #17 ·
yeah i got in contact with forge they said 7-10 days before its due back in. will order one when it back in
 

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1,180 Posts
Is anyone running the Forge kit, I've read that they are the best dv's available. Just wondering whether to swap mine for the Forge setup :D
 

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forge are good basic valves but they arent a patch on the SSQV, the ssqv closes instantly after discharging, the forge tends to pass for a bit longer than it should
 
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Discussion Starter · #20 ·
Dump Valves release unused pressurised air, as it's released, spins the turbo causing more oil to flow through it, prolonging the life of the turbo. Easy! obviously there are exrtemities as to how much it hisses to the amount of good its doing, set it up right its a good thing.
 
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