View Poll Results: Do dumpvalves work????
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Do dumpvalves work????
Thread Starter
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From: Barnsley, South Yorkshire
Do dumpvalves work????
Thought this might be fun.
Do dumpvalves prolong the life of the turbo on an Escort RST running standard management and standard turbo running about 15psi of boost
Do dumpvalves prolong the life of the turbo on an Escort RST running standard management and standard turbo running about 15psi of boost
Professional Waffler
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From: HertFORDshire
Depends on the application. On a sub 30psi RS Turbo no. On a T4 equipped RS500 or small turbo Escort Cossie yes.
You can't make a sweeping statement across the board as it varies from car to car
You can't make a sweeping statement across the board as it varies from car to car
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From: Cheltenham, Gloucestershire
Originally Posted by Little_Hoss
this makes me laugh
cant wait till people get really pissed off and start throwing massive technical jargon at each other
cant wait till people get really pissed off and start throwing massive technical jargon at each other
As i'm sure Oranoco will agree, the Pro DV brigade are expected anytime around NOW
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thats a bad exscuse if i ever i heard one 
Don't ask - I don't know
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From: Avoiding idiots - or trying to....
Originally Posted by Oranoco
Depends on the application. On a sub 30psi RS Turbo no. On a T4 equipped RS500 or small turbo Escort Cossie yes.
You can't make a sweeping statement across the board as it varies from car to car
You can't make a sweeping statement across the board as it varies from car to car
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From: Durham
Originally Posted by davidnormanuk
Is the poll thingie not working then?
a think the general rule is that they are only needed on high boosting engines 30psi+ like Oranoco said, but then you'll find that even people running this spec dont use them
you deffo wont need 1 for an mfi rst running 15psi
Thread Starter
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From: Barnsley, South Yorkshire
Would turbo stall (Chatter) harm the turbo when running 15psi.
Thinking about the blades having to stop all of a sudden would it eventually damage the bearing and shaft?
Thinking about the blades having to stop all of a sudden would it eventually damage the bearing and shaft?
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From: Cornwall
Originally Posted by Oranoco
Depends on the application. On a sub 30psi RS Turbo no. On a T4 equipped RS500 or small turbo Escort Cossie yes.
You can't make a sweeping statement across the board as it varies from car to car
You can't make a sweeping statement across the board as it varies from car to car
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From: Bucks
Originally Posted by Little_Hoss
am gana stick me neck on the line here from wot i understand you will not get chatter on a mfi set up
am sure some 1 will go into detail about chatter stall wastegates etc very soon
am sure some 1 will go into detail about chatter stall wastegates etc very soon
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From: In The Workshop
Re: Do dumpvalves work????
Originally Posted by davidnormanuk
Thought this might be fun.
Do dumpvalves prolong the life of the turbo on an Escort RST running standard management and standard turbo running about 15psi of boost
Do dumpvalves prolong the life of the turbo on an Escort RST running standard management and standard turbo running about 15psi of boost
stu as said before that turbo chatter is bad for a turbo and he as even seen it snap the shaft in half and louder the chatter the more damage its doing
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From: Barnsley, South Yorkshire
So chatter is bad for the turbo then. I'd assume you still get turbo stall on the MFi setup but just don't hear it due to the system it's running.
So a dump valve may prolong the life of the turbo providing its working correctly.
Do rally cars have a dump valve with running high boost etc to keep the turbo up to speed?
So a dump valve may prolong the life of the turbo providing its working correctly.
Do rally cars have a dump valve with running high boost etc to keep the turbo up to speed?
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From: HertFORDshire
Originally Posted by JimmyBoy
Originally Posted by Oranoco
Depends on the application. On a sub 30psi RS Turbo no. On a T4 equipped RS500 or small turbo Escort Cossie yes.
You can't make a sweeping statement across the board as it varies from car to car
You can't make a sweeping statement across the board as it varies from car to car
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From: Cheltenham, Gloucestershire
Originally Posted by Oranoco
Originally Posted by JimmyBoy
Originally Posted by Oranoco
Depends on the application. On a sub 30psi RS Turbo no. On a T4 equipped RS500 or small turbo Escort Cossie yes.
You can't make a sweeping statement across the board as it varies from car to car
You can't make a sweeping statement across the board as it varies from car to car
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From: Cheltenham, Gloucestershire
Originally Posted by Oranoco
They have a plastic recirculating DV from the factory iirc. I'm sure a friendly Escort Cossie owner can fill us in though
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From: Wellingborough,Northants
had a d/v on for years and then visited SCS and was told to throw it away so gave it a try and the difference was amazing holds boost between gear changes and doesnt try and stall. Thats on a stg3 hybrid with modified fins, depends on application i guess
Don't ask - I don't know
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From: Avoiding idiots - or trying to....
Originally Posted by safechav
Originally Posted by Oranoco
Originally Posted by JimmyBoy
Originally Posted by Oranoco
Depends on the application. On a sub 30psi RS Turbo no. On a T4 equipped RS500 or small turbo Escort Cossie yes.
You can't make a sweeping statement across the board as it varies from car to car
You can't make a sweeping statement across the board as it varies from car to car
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From: Cheltenham, Gloucestershire
Originally Posted by Mr S1
Originally Posted by safechav
Originally Posted by Oranoco
Originally Posted by JimmyBoy
Originally Posted by Oranoco
Depends on the application. On a sub 30psi RS Turbo no. On a T4 equipped RS500 or small turbo Escort Cossie yes.
You can't make a sweeping statement across the board as it varies from car to car
You can't make a sweeping statement across the board as it varies from car to car
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From: fee,fife,foe,fumb,i smell the blood of an englishman ,in scotland!
maybe he turned her around to recirculate her dump valve
sure they work,you accelarate,as you change gear they go,potash,everyone looks,BINGO! they work.
sure they work,you accelarate,as you change gear they go,potash,everyone looks,BINGO! they work.
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From: daventry,northants
Originally Posted by Oranoco
Originally Posted by JimmyBoy
Originally Posted by Oranoco
Depends on the application. On a sub 30psi RS Turbo no. On a T4 equipped RS500 or small turbo Escort Cossie yes.
You can't make a sweeping statement across the board as it varies from car to car
You can't make a sweeping statement across the board as it varies from car to car
