able to map mpi ecu
Turbo Mini Forums

ok a person i know who is now the sole seller for johncooper classic mini has someone who used to work for coopers who can remap ecu or will be able to very shortly.i was wondering whether if you able to map ecu ,could you put turbo manifold on it,then from turbo go to intercooler like normal,but then go to a silicone elbow that goes on to the top of the mpi injection unit with new throttle body,and new injectors. would this work.i can see some small probelms but nothin super major,any help would be greatly appreciated,i thought if you could use the rover ecu settings and fiddle with them shoundt be too much of a problem

On 30th Aug, 2008 Richie said:
too much my wife says "not that friggin site again" so i pull my pants back up and turn it over to TM. iam on pretty much every day as i lead a sad existance

You may be able to do this. You need a MAP sensor that can sense boost (2-bar or 3-bar sensor). You'll need larger injectors. Beyond that the hardware should be OK. My opinion is based on general knowledge of fuel injection, not anything specific to Rover MPI.
I'm presuming the time of someone with such special wizardry does not come cheap though. It may be better to use an aftermarket solution you can tune yourself. A piggyback computer that can alter the injection pulsewidth might suffice, if you can get by with the stock injectors. A separate computer controlling an additional injector would definitely work and allow you to leave the Rover box as-is. You would mount the extra injector in the pipe leading to your elbow.

1275 with Back Door Turbo

All said above would apply to a normal engine. The reality is that we don't know much about how Rover MPI works and how we should map it. It seems to be more complex than usual setup with only injection time and injection start instant.

Altering MAP sensor and putting bigger injectors should work.

I don't think you'll find a piggy-back box able to handle the Rover MPI signals.
Also to have a good torque control you'll need an electronic control of the boost. Stock Rover ECU does not do that.

std 998 A+, g295, MD266, RHF4, 109hp @0.8bar/5400rpm

Just for info the MEMS ecu can be remapped...

I for one can.

alex

AlexF

when you say you can re map the MEMS do you mean the fuel map and ignition map??

yup - not sure I can do anything about the inj timing though.

AlexF

Hi,
Being able to remap the ECU is all well and good, but to run forced induction would almost certainly require a change in MAP sensor, can the ECU interpret the change?
Cheers,
Gavin :)

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My Mini build diary

If you change the map sensor and then map the fuel map accordingly it will be fine.

A 0-5v scale is the normal regardless of the max pressure the sensor can measure. Its just calibration so to speak.

You can trick MJ doing that fairly easily.

AlexF

ok got into serious discussion withthe fella,and finally persueded him to letme try make it all work.so any advise on map sensor would be greatly appreciated.also im gonna try it with a small amount of boost on my mpi engine.like 3-4 psi just to make sure.after i have tried it without turbo setup.woudl 3-4 psi beok for standard mpi engine to take??? just to try it for a bit ?? all help is greatly appreciated.and as for ecu wih map sensor will be a wait and see thing.im more gettin it together then letting the people who know a fair bit more than takeit form there.

On 30th Aug, 2008 Richie said:
too much my wife says "not that friggin site again" so i pull my pants back up and turn it over to TM. iam on pretty much every day as i lead a sad existance

Hi,
Yeah should take 3-4 psi no problem, just be conservative with ignition timing, you'll be able see if the MPi MAP sensor will cope with boost...
Cheers,
Gavin :)

VEMs Authorised Installer / Re-seller. K head kits now available!

WB/EGT gauges. Click here for customers write-up

Visit www.doyouneedabrain.co.uk

My Mini build diary

ok will do that first hoping its gonna work.will be good if it does.and will i need to change the map if it works and i build a new engine.also then will need to change injectors.i am quite hoping this works and willbe to what im hoping.

On 30th Aug, 2008 Richie said:
too much my wife says "not that friggin site again" so i pull my pants back up and turn it over to TM. iam on pretty much every day as i lead a sad existance

So do you have the software that will communicate with the ECU?

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

im tkaing it to somewhere that hopefully will. i know is going to sound really unknowing but wont a lot of rolling road testers be able to get this or have it

Edited by ashley_dude00 on 23rd Sep, 2008.

On 30th Aug, 2008 Richie said:
too much my wife says "not that friggin site again" so i pull my pants back up and turn it over to TM. iam on pretty much every day as i lead a sad existance

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

ok i will have to ask thias,somethin that i didnt think of.i know that john coopers car got mapped so i wonder if he has the software for that.will find out some more information.will update wheni know a bit more.

On 30th Aug, 2008 Richie said:
too much my wife says "not that friggin site again" so i pull my pants back up and turn it over to TM. iam on pretty much every day as i lead a sad existance

Can of worms

If its anybody that will have the software, it will be the test house that did the engine calibration for the MPi. I cant for the life of me remember the name of the company but I do know that Rover contracted the engine calibration out.

Edit

Just remembered.

It was Biceri that did the engine calibrations

Edited by Sprocket on 23rd Sep, 2008.

hopefully not.but it may be worth a shot.

if not just good ol carbs will do fine otherwise thought might try somethin different.thankyou for the help so far people

On 30th Aug, 2008 Richie said:
too much my wife says "not that friggin site again" so i pull my pants back up and turn it over to TM. iam on pretty much every day as i lead a sad existance

Remembered

It was Biceri Ltd that did the engine calibrations