steven botes

got a single piston one myself - had to use it with my old sidedraught turbo setup as sudden boost spikes when letting off caused the float bowls to dump fuel and run overly rich which caused a bog when nailing the accelerator again

dunno if im gonna fit it on me EFI Gotech T34 , havent really got space as im using the std xr3 rad with a FMIC , piping is tight

they are fitted by manufacturers to stop the map sensor seing boost spikes and dumping juice which will affect oxy readings during inspections and use extra juice

also useful for letting wankers in their hot na hatches know to piss right off!!!

b63_rs

if and i say if they prolong the life of the turbo then i can deal with sounding like a bus

4D

How many more people ae gonna have to say this.........


DUMP VALVES ARE GAY

gaz s1

and they dont prolong the life in youre turbo unless youre running crazy boost

Oranoco

Rubbish. A bloke down the pub told me they protect the turbo and give you 30bhp more. It must be true as he has a Saxo.

b63_rs

T28 RST

So does everyone agree that dump valves are useless on 90% of the RST's on here

b63_rs

yes























unless you like bus noises

T28 RST

http://www.youtube.com/watch?v=BtrHG_GKDg8

b63_rs

no way lots of yellow rst's there lol

Billy_RS

iTrader: (5)

Do you have to bring attention to this thread



DUMP VALVES ARE FOR HOMO'S

djmillsy

mentalasanything

A bloke down my pub told me that, he's got an electric one fitted and they add a bit more than 30bhp apparently

In all honesty DV's are an aquired thing like marmite, you either like the sound and have one, or you dont like the sound and dont have one.

This topic gets very heated every time it's brough up doesn't it!!!

Lee

djmillsy

i usd to love mine but on the motorway it ripped my tits every fucking time i accelerated and let of sssssshhhhhhhhhhhhhttttttttsssssssssssssssshhhhhhh hh

1.9 xr2 on 40's

hardly fair in 2 instances,
1: 8psi isnt going to do much whatever happens most of us run 15-20
2: erst's were early days for this lark, if it was built now it would have 1 (as new turbo cars generally do-frs) doesnt mean it dont need 1, ersts need lots of things that wernt fitted as std, technology moves on and we look back and say, wish i knew then what i know now

T28 RST

If all RST's need them why are so many running without one

sas

I guess it down to personal choice?

S.

1.9 xr2 on 40's

im not advocationg them, i dont give a hoot, ive got a shelf full of dv's ive removed from rs turbos (got another shelf of turbos too tho ) if they made money i'd ebay em but its not worth the bother for a tenner

just cant say that if it wernt fitted as std its not to be fitted because its unnessecary

Turbocabbie

if RST's need dump valves how come if you run a diaphragm based dump valve the MFI RST develop a air leak and erratic idol. ?

Turbocabbie

Why not, the evidence that its not actually there suggests its not necessary as dump valves were available at that time, I have seen no evidence to suggest they are actually necessary

moesin2005

dump valves are gay chatter is the way foward

Dragsteer

I have some cheap twin piston DV and only bad thing about them are bangs from exhaust, because air get out of inlet mainfold. dont know if this afecting driving, power... idle is same as before, driving is same. I dont measure times so dont know is there any looses or gains. It would be great to make some little test of DV on few RST, measure 0-60 with and without DV...

Micky

Well for what my 10 years of RST ownership is worth.......dump valves are for Gays,end off.I ran 19 PSI boost for many's a year making much more powerfull cars look very silly,and never once ran a DV.Car was set up by Mark Shead,who knows a bit about RST's and he told me that running a dumpvavle was a waste of money and effort!!So if you're 19 yrs old,think you know it all,then go ahead,use a DV....Regards,Micky

ricky_2006

well how comes everyother rs is see i hear a dump valve.
and that is bollax, why is it gay having a dump valve or a chav. every1 is a chav then because u own an escort rs. dnt agree with that atall. i actually like the sound of my baileys dump valve.
why dont you get a CHATTER. tbh i dnt know wether u can but my mate has one on hes frst and it sounds the nuts

B1G_RST

iTrader: (1)

spot on neebor,each to there own, i never relised ppl wer stil bitching on this thread,

Oranoco

It's not really bitching mate. If you like the noise and want one then get one, just don't expect any of the so called turbo serving benefits that they are supposed to offer

Bungle

Oranoco Does yours chatter without a gay valve??

S2Steve

Don't use one, why would you want one, there is no need and turbo chatter sounds a lot nicer

juffer

you cant have a chatter with mfi can you?

ricky_2006

like i sed. chatter does soun the bollax, but i still like my baileys.
how much can u get a chatter for

Bungle

RIGHT TAKE NOTE OF THIS FOR YOUR OWN SAKE

No you can't buy a chatter as so many of you put it just remove the dump valve and you will hear it end of,

Yes it still does it on mfi and some do it louder than others depending on boost level you are running.

HTH

Oranoco

Not noticable as the flap in th emetering head muffles the sound. My Fiesta chatters its tits off though

Badman38

iTrader: (2)

if you run a gt turbo on big boost then your going to need one otherwise the chatter as you lot call it would snap the shaft..

sean

B1G_RST

iTrader: (1)

hey guys, what does CHATTER mean ? i took my dv off for around a month when i was boooting it it sounded like it was dumpin still,its this called chatter ?? cheers haha

Turbocabbie

search youtube for rs turbo chatter and see if you car sounded like any of them

Here's a Escort chattering away

http://www.youtube.com/watch?v=PIlpxLw6gYg

crazycage

heres a fiesta chattering http://www.youtube.com/watch?v=F-K_4yPQUtg

Badman38

iTrader: (2)

all t series turbo apart from the t4 they dont produce enough back pressure to need a dump valve but they are a must on gt series turbos, the chatter is the air the engine does'nt consume getting cut up by the turbo blades.

sean

Oranoco

Here's another Fiesta chattering away.

http://www.youtube.com/watch?v=baUEBAKw5vQ
http://www.youtube.com/watch?v=ts6_Z...eature=related

johnnysash

has anyone ever thought about fitting a recirculating valve to an rs turbo?

It could be piped back to the pipe between the turbo and the metering head (the suction side of things)............ there must be a reason why i have never seen it done.

also by not running a dump valve are you not more likely to bend your metering head when the back pressure occurs......or is it far enough away for the air not to be turbulent in the metering head? and have I just answered my own question about the recirculating valve?

homer j

iTrader: (1)

not a case of people thinking about doing it as more a case of it's a waste of time. people only fit dump valves to stamdard rst's cos they think it sounds cool. why would the same person fit a recirc that won't make the ppttsshh sound that they want. it won't make the car more reliable or better to drive. thats propbably why it hasn't been seen.