How you pipe a bleed value
Turbo Mini Forums

how you pipe up a bleed valve i know you get one pipe from the turbo but wheres it go on the bleed valve and where do other pipes go to and where do they come from??

Is it worth putting on will i gain anything from it cos i've just got a standard 1275 turbo

http://www.Zeemax.com

the bleed valve has 3 connections... the outer 2 are connected between the turbo and the actuator...in line..
the 3rd one bleeds the pressure off to atmosphere...
you will get significant gains in power.. but dont crank it too much or it will be bye bye piston rings/pistons.etc etc

Anyone got an idea ???

http://www.Zeemax.com

how much can you turn it is there a set amount like two turns or something???
and the bleed valve goes in that pipe between the turbo and the actuator??
wheres the pipe meant to go that comes off the other side its like a T on the turbo and one goes to the actuator but where does the other side go to or u just block it off???

http://www.Zeemax.com

the pipe that goes to the actuator is the one you put throught he bleed valve, the other one is where the boost solenoid used to go so block it off.

have you got a boost gauge? you'll need one before you even think about touching the bleed valve dude, you have to be pretty carefull with it, it only needs moving slightly to up the boost. if i were you i wouldn't go past 7ish on a standard engine, else you'll probly find stuff melting :)

If your engine is totally standard i wouldn't think about upping the boost much. You can't run more boost without altering the fuelling/ignition to suit, then there's the compression ratio to consider ..... You MAY be able to get away with retarding the timing slightly and richening the mixture, but you're still limited by the compression.
Getting carried away with the boost without considering the above WILL end in disaster !
If the engine's standard i would leave the boost standard, otherwise drop the compression and add an intercooler, then take it from there.

Phil.

WWW.TURBO-MINI.COM

i was going to add an intercooler anyway but i didn't really want to do anything else so you think theres no point then so if i put it on it wouldn't give me any thing???

http://www.Zeemax.com

if you put it on and keep it closed it wont do a thing.

if you start opening it then it will give you more boost (which means more power) but on a standard engine it means bye bye pistons.


no offence intended dude but have you had a read through the site? there's a lot of very usefull info here. it just seems to me that you've jumped in feet first without actually knowing what your doing? when i did mine i spent a good couple of weeks reading through old posts so i knew what i was letting myself in for and what sort of things to look out for.

Nick.

amen brother

Personally I like to place a small (FLOW REGULATOR) in line, coming from the first pipe from the pressure side of the turbo up to the three-leg valve.
I regulated this flow down to a whisper using a garage compressor before installation.
The turbo produces such a LARGE amount of volume of air, if you left the regulator out which 99% of people do you could hear your motor coming half a mile away as you adjusted the bleed valve in the cab, trying to bleed the air off in the signal line.
The volume of air is massive. this is wasted energy which could be used to power the turbo further Quicker!
I also find if you do this the noise is gone! & You have very fine control of the three leg valve, standard boost to say maximum in less than a quarter of a turn, In ever so slight increments from they?re on. half a turn & its like putting a blank on the actuator, it will never open.
You can get the flow regulators say from any pneumatic company any ware, look in the yellow pages these are around a ?5 to ?8 including the fittings for the hoses.
I don?t know if any one has used this configuration before but I thought it?s worth a mention????think about it????

OH! Forgot to mention, the flow regulator needs to be ?NONE? directional.
(ie) flows both ways.

Edited by BENROSS on 29th Dec, 2004.

Yes I agree with Ben this is a good idea, as it also will allow you to set max boost using the flow reg, and so then there is no danger of damaging anything over adjusting the bleed valve.

Hi Tom, i use this on my system and its dont halfe work, its so fine the adjustment i think its one of the best setups....
but i cant see how the flow reg would assist in setting maximum boost tom?
it still relies on the three legger valve as before but we are only sending a small signall of air to do the job.
using it this way you have to be OH! so carefull in adjustment you can strangle the signall to the actuator EASILY! blanking it off totall.
Hence massive melt down if you dont watch things.

REGARDS TOM

Edited by BENROSS on 30th Dec, 2004.

yeah you are right I have just engaged brain and thought about it.......