DanFR147

I've recently had my engine rebuilt and during the running process turned the boost down to assist.

Otherthan having the car setup... Is there a technique when setting the boost? What will happen if it over boosts?

I'm currently running a standard ecu.

Chopshop85

iTrader: (4)

If you are running a std ECU you wont see more than 9-10psi IIRC.

The only advice I would offer is take it to a tuners and have it set up. There is alot to take into account when increasing boost and if you have just rebuilt its not worth running the risk of damaging a fresh engine.

cj_rst

What he said.

Not worth messing up your engine for the sake of a few quid to get it done properly

liam-rst

iTrader: (1)

yeah sayin that tho if he has the amal valve bypassed he will have nothin to restrict the boost to 8-10 psi, how did u turn boost down mate? do u have a bleed valve or did u do it via actuator? either way as said u should get it set up at a tuners if u donnt knoow what your doing

mr noisy

How comes i can run 20psi in my escort rs and doesnt over boost ? its still got the amal valve too but does have a bleed valve too, Not sure on ecu as its been like this when i got the car and has not really missed a beat

martysmartie

iTrader: (1)

As you car would have been remapped so it can do so, boost control doesn't matter as it does just that and controls the boost, but electronic has advantage in that ECU can control boost, manual and it can not.

The boost WILL still be restricted even if you bypass the Amal valve which would be a crazy thing to do as the standard map will not allow more than 10PSI max.

As to OP question as said you need to get it setup, it's not just a case of running more boost you need the fuel to go with it as well as well as correct timing curves, a whole multitude of things need to be setup.

Martin

mr noisy

Is there a way i can find out what my ECU has had done to it then ?

martysmartie

iTrader: (1)

Yes you need to open it and see what chip the ECU has in it, normally if it's a remapped chip it will have a label on stipulating this.

Martin

liam-rst

iTrader: (1)

take it out antif a reputable company has put a chip in it they usually put a sticker over one of the screws on the back cover, if not u could always open it up an look,

sionr

off topic but.my car has no valve whatso ever pipe straight from the turbo to the acctuator.was like this when i bought it?

mr noisy

what about the 3rd pipe that goes to the metering unit ??

liam-rst

iTrader: (1)

they get blanked

sionr

ye had a 4" bolt stuck in it.nice roadside bodge,its like the whole car was trown together the quickest way possible.

DanFR147

I think its time me gets my car booked in for a tune.... West Midlands area... Can anyone recommend a good tuner?