stevenebm

iTrader: (6)

awrite folks.whats the differance in the above.saw a hks blow off dump valve and it looked pretty cool.can these be used in rs turbos and the like.cheers

Ad4m RST

A blow off valve isn't recirculating, they're known as a diaphragm type. Bailey twin piston ones are recirculating, thats the ony type you can safely use on a RST

stevenebm

iTrader: (6)

yeh a was thinking that mate.thats why they wouldnt idle or run properly with anything else.oh well there goes another idea...baileys it is

vroooom ptssssh

I think the HKS super sequential (SSQV) is a twin piston type! never heard of one being used on an rst tho!

IMO dont run one at all, they end up causing problems eventually and are pretty pointless!

vroooom ptssssh

oops, double post why cant you delete posts on this forum?

stevenebm

iTrader: (6)

if a dont use any will i get a chatter noise since the mfi will be binned?

Ad4m RST

Yea get some mental chatter

vroooom ptssssh

Yep, chatter ahoy!

Rs1

iTrader: (1)

You can get the bailey in both recirc and non recirc. Both can be used on the rst(in terms of effecting idle) although not too relavant seen as your ditching the metering head.

Eagle

iTrader: (2)

i ran a normal spec r one for 2 years with no problems

carlo

iTrader: (4)

I have a blow off valve on ,y evo its a blitz one some bit of kit looks mint & well made but sounds crap its a dull thud...
Get a group a cossie one chappy had my old one on his efi fiesta with a t3 & it sounded gr8 it cherped before the dump

reality

A dump valve and BOV are the exact same thing. Both can come in atmospheric or re-circulating versions. Not something you want to run unless you have to.

morto

hi steve , you dont have to use the baileys mate, get a proper one off stu and use stu,s electronic box , iv had one on for years and thay work perfect mate , it works via the solanoid on your throttle , every time you close the throttle the solanoid closes the dump so no air problems and ticks perfect mate

andy

Rene

blow off valve = american
dumpvalve = english

ballin

iTrader: (1)

exactly! no diff.

Rab

NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO

Stu @ M Developments

iTrader: (12)

Actually, a blow off valve traditionally was a device used to vent excess boost pressure to atmosphere to stop you destroying an engine.

Ie: Engine normally runs 28psi but at 31psi a valve opens and drops the pressure.

Stavros

Yup, as per Stu.

Just the yanks/japs have used the name for summat its not really.

Tho some people call them pop off valves.

And somepeople call BOVs/DVs wastegates, so its a bit of a minefield if you dont know what you looking at!

bud-weis

yeah was gonna say they call them pop off valves too,think they used them in CART racing?