Removing a dump valve.
22-05-2007, 11:27 AM
#6
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Originally Posted by Stavros
why havent they banned you yet phil?
boost will only go higher if DV was leaking
boost will only go higher if DV was leaking
why do certain people think i am someone else?
22-05-2007, 11:29 AM
#7
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Hello Martin-Reyland yes i am an expert in certain areas but i am trying to diagnose a problem of removing a dump valve and getting a high end misfire.
Any help appreciated before i put it back on and cure the problem LOL.
Any help appreciated before i put it back on and cure the problem LOL.
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22-05-2007, 11:38 AM
#8
Originally Posted by Mr-Ford
Hello Martin-Reyland yes i am an expert in certain areas but i am trying to diagnose a problem of removing a dump valve and getting a high end misfire.
Any help appreciated before i put it back on and cure the problem LOL.
Any help appreciated before i put it back on and cure the problem LOL.
Its possible it was leaking, and due to that the car wasnt seeing as much boost as it is now.
Thats not a function of removing the valve though, its a function of removing the leak, if you fitted a working valve it would also create that problem potentially if the map has been done with the valve leaking.
22-05-2007, 11:39 AM
#9
Originally Posted by Mr-Ford
Hello Martin-Reyland yes i am an expert in certain areas but i am trying to diagnose a problem of removing a dump valve and getting a high end misfire.
Any help appreciated before i put it back on and cure the problem LOL.
Any help appreciated before i put it back on and cure the problem LOL.
What areas are you an expert on then?
So that people know what sort of questions to direct at you?
22-05-2007, 11:43 AM
#10
Originally Posted by Chip-3Door
It will do something different in that it will come back through the turbo and make a noise often referred to as "chatter"
From a performance point of view though, you wont notice anything.
From a performance point of view though, you wont notice anything.
I know that doesnt constitute as a performance gain as such, but it was noticeable
22-05-2007, 11:43 AM
#11
Originally Posted by Chip-3Door
Originally Posted by Mr-Ford
Hello Martin-Reyland yes i am an expert in certain areas but i am trying to diagnose a problem of removing a dump valve and getting a high end misfire.
Any help appreciated before i put it back on and cure the problem LOL.
Any help appreciated before i put it back on and cure the problem LOL.
What areas are you an expert on then?
So that people know what sort of questions to direct at you?
22-05-2007, 11:49 AM
#14
DEYTUKURJERBS
Originally Posted by Mr-Ford
Cossierich thanks i know it makes a difference of a kind no matter what the "experts" say here (i say that term very loosely)
and i take it you just doing your best to get this account banned?
22-05-2007, 11:50 AM
#16
Originally Posted by CossieRich
Originally Posted by Chip-3Door
It will do something different in that it will come back through the turbo and make a noise often referred to as "chatter"
From a performance point of view though, you wont notice anything.
From a performance point of view though, you wont notice anything.
I know that doesnt constitute as a performance gain as such, but it was noticeable
22-05-2007, 11:58 AM
#17
Originally Posted by Chip-3Door
Originally Posted by Stavros
why havent they banned you yet phil?
Wish I had powerful friends / business partners
22-05-2007, 12:01 PM
#18
Originally Posted by martin-reyland
Originally Posted by Chip-3Door
Originally Posted by Stavros
why havent they banned you yet phil?
Wish I had powerful friends / business partners
22-05-2007, 12:04 PM
#20
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Originally Posted by Mr-Ford
You lot are delusional in here 
You are Phil.
And you bought Dougs old Gunship Saff... EVERYONE KNOWS IT!!!
Strange thing is if I was banned, I would have the intelligence to post in a different 'style' or not go on about a car that everyone knows you just bought....
ITS SOOOO OBVIOUSLY YOU A BLIND RETARDED MONKEY WOULD KNOW IT!!!
I think you are just rubbing Stus and the other mods noses in it.... feel sorry for Stu to be honest....
Why can't you just behave OR rejoin but don't make it obvious so that the mods and Stu don't have to make difficult decisions....
22-05-2007, 12:04 PM
#21
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Originally Posted by martin-reyland
Originally Posted by Chip-3Door
Originally Posted by Stavros
why havent they banned you yet phil?
Wish I had powerful friends / business partners
22-05-2007, 12:05 PM
#22
Originally Posted by POPEYE
Originally Posted by martin-reyland
Originally Posted by Chip-3Door
Originally Posted by Stavros
why havent they banned you yet phil?
Wish I had powerful friends / business partners
What a peculiar answer
Surely to be banned you need to do something wrong, wether someone complains or not?
22-05-2007, 12:07 PM
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Originally Posted by Chip-3Door
He was banned for having multiple usernames according to greg shephard in the politics room.
And yet here he is with yet another one
And yet here he is with yet another one
22-05-2007, 12:10 PM
#26
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Do threads always get hijacked on this forum by odd people talking about something i have no idea about? I thought their was a muppet room for this,may i suggest some are better suited there and to leave technical threads alone????Please?
I thought their was a muppet room for this,may i suggest some are better suited there and to leave technical threads alone????Please?
22-05-2007, 12:14 PM
#27
Originally Posted by POPEYE
and you just SOOOOOOO ike to point it out,lol
Yes absolutely, thanks for noticing, its good that you appreciate my efforts to help you and the other mods.
If someone is breaking the rules to a massive extent and ruining the forum, and it appears that the mods havent noticed then its every user's responsibility to report it IMHO, you say it like you dont appreciate my input to help you and the other mods uphold the rules you have all volunteered to do so.
We're all on the same side here, and fully support Stu and his team, im sure you appreciate knowing that the users are behind you to help stop this sort of thing
If I saw someone mugging a little old lady I would intervene in that too, either by stopping them myself or grassing them up to the old bill for it.
22-05-2007, 12:16 PM
#28
Originally Posted by Mr-Ford
Do threads always get hijacked on this forum by odd people talking about something i have no idea about? I thought their was a muppet room for this,may i suggest some are better suited there and to leave technical threads alone????Please?
I thought their was a muppet room for this,may i suggest some are better suited there and to leave technical threads alone????Please?If the mods feel that they have done so to an excessive extent then the thread will be moved to the muppet room or spat your dummy room.
If you feel this should happen with your thread, then PM a mod
22-05-2007, 12:20 PM
#30
Originally Posted by CossieRich
Funny how threads involving Phil AND Chip always go off topic, but a topic where only 1 or the other posts usually stays sound. Mystery
22-05-2007, 12:41 PM
#31
Originally Posted by Chip-3Door
Originally Posted by CossieRich
Funny how threads involving Phil AND Chip always go off topic, but a topic where only 1 or the other posts usually stays sound. Mystery
i dont get it it certainly isnt because you are better looking 
22-05-2007, 12:53 PM
#32
Originally Posted by CossieRich
Originally Posted by Chip-3Door
Originally Posted by CossieRich
Funny how threads involving Phil AND Chip always go off topic, but a topic where only 1 or the other posts usually stays sound. Mystery
i dont get it it certainly isnt because you are better looking Whats not to love?
22-05-2007, 12:55 PM
#33
Originally Posted by Chip-3Door
Originally Posted by CossieRich
Originally Posted by Chip-3Door
Originally Posted by CossieRich
Funny how threads involving Phil AND Chip always go off topic, but a topic where only 1 or the other posts usually stays sound. Mystery
i dont get it it certainly isnt because you are better looking Whats not to love?
just trying to ligthen the mood on this thread as i can see it going the shape of a very mouldy pear
22-05-2007, 01:06 PM
#36
Originally Posted by CossieRich
Originally Posted by Chip-3Door
It will do something different in that it will come back through the turbo and make a noise often referred to as "chatter"
From a performance point of view though, you wont notice anything.
From a performance point of view though, you wont notice anything.
I know that doesnt constitute as a performance gain as such, but it was noticeable
22-05-2007, 01:14 PM
#38
Originally Posted by cozmeister
If it's worth me adding my 2pence, I'd have thought throttle response would be better because there's no 'partial' boost - all the boost the turbo's trying to generate is getting squeezed past the throttle butterfly, instead of some (or all) being dumped.
At full throttle, the dump valve does nothing. (unless faulty)
At any other time you dont want the entire boost of the turbo to squueze past the throttle.
22-05-2007, 01:43 PM
#39
Originally Posted by Chip-3Door
Originally Posted by Mr-Ford
Hello Martin-Reyland yes i am an expert in certain areas but i am trying to diagnose a problem of removing a dump valve and getting a high end misfire.
Any help appreciated before i put it back on and cure the problem LOL.
Any help appreciated before i put it back on and cure the problem LOL.
Its possible it was leaking, and due to that the car wasnt seeing as much boost as it is now.
Thats not a function of removing the valve though, its a function of removing the leak, if you fitted a working valve it would also create that problem potentially if the map has been done with the valve leaking.
What he said 
22-05-2007, 01:58 PM
#40
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In my experience, removing the dump valve does sharpen up throttle response when going back on the gas. The theory behind that is you haven't just dumped most of the pressure from the IC (which would then have to re-pressurise).
Obviously in some turbo / high boost applications, you'd ideally need to run a dump valve to prevent catastrophic turbo stall to due a massive pressure reversal.
If there's a difference after removing the DV such as increased boost, then that's probably as Chip said re: leaks. That doesn't necessarily mean that it had a leak when the boost was set, as up to a point, a turbo will do its best to supply the pressure it's set for - which in the case of a leak, could mean the turbo overspeeds whilst trying to supply the set boost level (which again is a danger point)
Obviously in some turbo / high boost applications, you'd ideally need to run a dump valve to prevent catastrophic turbo stall to due a massive pressure reversal.
If there's a difference after removing the DV such as increased boost, then that's probably as Chip said re: leaks. That doesn't necessarily mean that it had a leak when the boost was set, as up to a point, a turbo will do its best to supply the pressure it's set for - which in the case of a leak, could mean the turbo overspeeds whilst trying to supply the set boost level (which again is a danger point)