Why oh why do people use them

Thats all

 

Had one on my car when I bought it and removed it at the earliest oppotunity.

I suppose they are an ultra cheap mod to get more boost but are very damaging at the same time


Luciano

 

In what way are they damaging?

Providing the mapping is checked after fitting and adjusting I can't see a problem tbh.

 

Just one more turn,uh oh whats happened
I didn't think people used this stupid idea anymore until someone said on a thread the other day as they have got one on a Sapp
Maybe they can be reliable at low boost on some things but its the "twiddle" factor.One more twiddle = broken !!
cba find the pic but its like Peter Griffin with the do not push the button !

 

The temptation is to play with it and wind it up, the damaging bit is they reduce the life of the turbo,

the t3 on my car used to scream so surely that is not very good for it


Luciano

 

'Great minds' think alike you beat me to the post but exactly what I had in mind


Luciano

 

Ha ha,tis true though

 

Nowt wrong with a bleed valve, its the idiot who owns it that usually causes the problem

 

Arnt you ment to use a decent quality one with a ball bearing or something in it to try and reduce the chance of boost spikes?.

 

I used a relief valve on my ST205 GT4... removed the factory boost limit in 1st and 2nd gear and allowed you to increase boost to 1.1-1.2bar before the factory fuel cut steps in for safety and makes you think you've hit a brick wall.


Cheers,
Grant

 

 

Was told at nms that bleed valves are shite.

 

And dangerous for your engine

 

the only thing dangerous for your engine is the owner of the said bleed valve

they are fitted has standard but partly run by the ECU but a aftermarket bleed valve adjustment is all down to the owner

 

It MUST be true then......or you just didnt listen properly and have taken it out of context.

 

Don't be daft, nothing wrong with them! It's the fuckwits that adjust them with NO adjustment to the map that are wrong!

You can set an actuator to give more than std boost, should we bin them too?

Silly post!

 

It's something to do with boost cut so you don't damage engine.
And what's with the sarky comment? I'm only stating what I've been told from a reputable tuner. Let's hope an actual tuner comments to put you straight about bleed valves ( bleed valves = shite ).

 

Waiting for tuners then.....lets see shall we

 

in fact msd have no problem with them
https://passionford.com/forum/genera...-a-cossie.html

 

MUST be true then

 

And here's your very own precious Mr Norris fitted one himself https://passionford.com/forum/genera...eed-valve.html

 

How's he " my precious Mr Norris "????
I'm stating what he told me when I took my saff to be mapped, he took my bleed valve off claiming it to be an unsafe way of controling boost and fitted an Amal valve instead.

 

Perfectly good bit of kit, if used correctly!

 

Correct.
Do you guys twiddle your fuel pressure regs too?

They do remove the ecu's ability to lower boost if you actually replace your boost control valve with one instead of fitting it in adition to it, but they are no more dangerous than an amal valve providing:

1) You use a quality one like this:
2) You set it safely, which usually means letting a tuner set it.

 

And i'm stating you have taken it out of context or too literally, i've provided two examples of the top tuners using/recommending them and you can provide no technical reason to back up your statement of them being dangerous for your engine.

Norris may have said your particular setup was shonky, but anything can be poorly installed or setup.

I dont see any tuners jumping on here claiming they're dangerous for your engine



ps, see Stu's post

 

peole that use them have small gonads!

 

Well said lol

 

See Stu's reply

 

Stu sells them lol

 

Aye because there is fuck all wrong with them

 

So you're questioning his integrity?

Norris will supply and fit them too

 

they are good for rs turbos as its an easy way to adjust the boost because the actuator is a pig to get to

but for a cosworth not needed in any way at all

makes them a safer option if they stay under the bonnet and not dash mounted

and can be locked to a certain boost level so can be used to lower the boost as much as raising it

not everyone wants to run full boost all the time say depending on weather conditions etc

 

i was told by them that its a good way to control boost the pre load X% of the boost and bleed the remaining X%

i did have the explanation why its to reduce boost spike and better control or something

 

Afirmative.

But then as Karl is a personal friend of mine when he fitted mine to my old RS Turbo it was on strict instructions that if I messed with it I would be taken out back and shot.


But its different items for different applications and I also know how Karl can often be quoted out of context.

 

Death by bleed valve... I've seen so many destroy engine's simple because the things arnt set up right or the fuck wits turned it up... But as Stu says if there set up right and left alone then there no more damaging than a Amal valve.

 

V MAN
a bleed valve cant be used to lower boost. only to raise it from stock actuator setting

 

yeah but set the actuator low and bleed off the rest
then you can use it to lower boost as well as raise it

 

Don't see the logic in that mate.

 

just makes it realy easy to turn the boos down
quite common to set it up that way
wasnt me that suggested it
just explaining how it can be done

 

Why is this topic still going on? Isn't it obvious that there's nothing wrong with a small valve that you fit to your actuator control pressure pipe, because it's just a valve. That is set, hopefully by a tuner. The valve itself is not at fault, but the person who twiddles about with it!

Christ on a bike, what has happened on here of late!