rasing the boost
Turbo Mini Forums

how is every1 rasing the boost im kinda confused how you guys are doing it, as the standard ecu is limited to 7psi, i understand that if u remove this and place a bleed valve it can be increased yes. but bleed valves aint exactly an accurate way to raise the boost. is it possible to use a boost controller to raise the boost on a metro turbo engine? if so how?
thanx
mark

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I think 99% of us use bleed valves, we don't have any problems

Team Racing

how do u make sure u dont apply too much boost jimster?as i hear the sligtest turn of a bleed valve increases boost more than ud think?

speed is the best rush i have ever had!!!

add me lanxter@hotmail.com

I've not really found that, on my bleed valve, about 1/4 turn is 1psi, so quite easy really

Team Racing

oh rite spot on ill give that ago, just alot of people i know as soon as i mentioned bleed valve there words was NO NO NO NO.

speed is the best rush i have ever had!!!

add me lanxter@hotmail.com

you need to use a good quality boost guage so you can see how much boost you are running, once youve set it a few times you soon gert used to it

no longer a series, but still 1.3 turbo.

rite cheers lad's bleed valve it is then.

speed is the best rush i have ever had!!!

add me lanxter@hotmail.com

the sensitivity of boost via a bleed valve is all down to how much load there is on the acuator.

the higher the rating or more you have done it up the less you need to undo to raise the boost via this method.

on a standard 4 psi t3 actuator you can undo it all day and you will be lucky to get over 7-8 psi.

but wind the preload on the actuator a couple of turns then you will see that you need less turns of the bleed valve to gain a single psi.

if that all makes sense.

always looking for them bigger bunches of bannanas

yesi understand what u mean mate

speed is the best rush i have ever had!!!

add me lanxter@hotmail.com

i think people hear horror stories about bleed valves from typically your old turbo 'hot hatch' motors because people keep opening them up, and opening them, and bingo BANGo your engine/turbo pops

stick with your bleed valve, or use a couple of the std metro boost solenoids to up your boost!!

can i adjust the boost up and down by using the bleed valve as from what sum1 has told me the fueling and timing would be one if i adjusted it up and down all the time?

speed is the best rush i have ever had!!!

add me lanxter@hotmail.com

The safest way is to get it setup on a rolling road to a sensible level depending on your engine spec.

Then use you right foot to contol how fast you go and not the bleed valve.

Unless you have a lambda sensor, how are you other wise going to tell if the engines running lean? Thats where the horror stories come from!

im gunna b using lamba sensor mate, just a friend of mine has a starlet turbo and he is able to have incar boosting and his fuel adjusts to the boost he runs

speed is the best rush i have ever had!!!

add me lanxter@hotmail.com