just use a swirl pot and return hose to it

(it was the LH tank that was overfilling)

I added an extra fitting in to the bottom of the LH tank and connected the RH tank only to that - so the fuel pump was taking and returning fuel to the LH tank, and the RH tank was (still is) just equalising the level in the LH tank rather than having fuel drawn out of it.

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did I tell you that I won a trophy?

Extra fitting sounds like a plan, as I don't want to take up boot space with a swirl pot.

What in line fuel pumps are people using for high pressure - 3.5 bar?

the SPi setup uses 1 bar system pressure. most pumps for that have 2.5 bar maximum pressure.

the easiest way to fit a simple EFi to a carb'ed car i found is to fit an old GM (Opel over here) SPi setup. it uses a dizzy with Hall effect sensor. i mated the upper of the GM dizzy and the lower of the Mini dizzy successfully.
advantages of that system: the loom is selfcontained so you don't have to change the loom of the Mini. you only lenghten the wires to make it look good and connect power and ignition switch.
diagnostic software is easily available or you can uses blink codes. and it has a MIL lamp output, something Rover failed to fit.
it's old, proven, and well documented. and the ECU is smaller than the Rover one.
disadvantages: you have to build a dizzy, but that's quite easy. and you don't have to use a differend flywheel.
it uses a vehicle speed sensor, but that can be made to fit. or maybe it can be turned off somehow.
it forgets what it learned if batterie power is disconnected for some time. but it relearnes quite quick. and i had a 1400ccm ECU running a 998ccm engine that maybe increased the problem, overfueling, during warmup.

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Rover 214 atm ....

Klas, did this system use a air flow meter? What Opel vehicle did this system come off? Sounds very interesting. Any photos for this system and more details would be great. Did you use the Opel throttle body and injectors.

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Lindsay Palmer
06 Mazda SP23
80 Alfa GTV (weekend toy)
86 626 Turbo (daily drive, now stolen)
71 cooper s replica
69 cooper replica
76 clubman
62 english 850
68 Mini Auto

I was using a bosh pump - similar to this - https://www.sparesbox.com.au/part/bosch ... gJrOfD_BwE

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did I tell you that I won a trophy?

Having a swirl pot helps prevent low fuel level problems and also ca make pumps last longer. These pumps hate restrictions on intake.

not gospel, just my experience... but I didn't have an issue with it - our tanks are tall rather than wide and flat - I figure fuel doesn't have anywhere to go to make starvation a problem. Even when running nearly empty, the fuel pickup is right at the lowest point of the tank. The mini fuel tank basically ticks all the boxes to be a swirl pot in itself. A van or moke would be a different story

Likewise "they" say you shouldn't let your fuel return spray into the top of the tank - "they" say it aerates the fuel causing xyz problem... never had an issue with it.

Maybe if I'd been able to get past the problems I had with injecting before the supercharger and with hot intake issues I'd have had to deal with problems at the tank, but it did 25-30,000-odd km as it was... I'll inject it again if/when I get a 7 port or BMW head on it



the EFI system I *think* you're referring to is from a Holden Camira over here. I have a write-up from somewhere

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did I tell you that I won a trophy?

no, it uses an external MAP sensor, can be fitted close to the throttle body, avoiding such long, easy to fail tubing Rover used

very poor quality video from back then https://www.youtube.com/watch?v=tKcGib_PcoE


i won't fit it this way as i guess it would cook the idle control down left
will look if i can find some more pics

sadly i only know how the cars were called over here, Opel Corsa and Opel Kadett, made around 1990. but i think it was the basic throttle body injection of it's day

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Rover 214 atm ....

Klas, thank you very much for your reply. We didn’t get the Corsa a here, but we did get the Corsa b and the Daewoo version of the kadett.

We’re these parts fitted to a Corsa b?

Any other pictures or details you could provide would be great.

I might get a chance to go to the breakers here and see what I can find.

Did you need to do any reprogramming or alteration to the ecu at all?

Did you need special computer software?

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Lindsay Palmer
06 Mazda SP23
80 Alfa GTV (weekend toy)
86 626 Turbo (daily drive, now stolen)
71 cooper s replica
69 cooper replica
76 clubman
62 english 850
68 Mini Auto

over here they did fit one type of engine to the Corsa B, too. it's called C14NZ and is the only one still using a dizzy at that time. all others are dizzy-less with a coilpack and a 60-2 trigger wheel.

no, i didn't change anything. after fitting i just started it up, let it smoke untill the lambda sensor was warmed up, i fitted a heated one, and the ECU reduced the fuel. after warming up i put it into diagnostic mode with a paperclip to adjust the timing correctly, oldschool timing light and turning the dizzy, and that was all. worth to mention, the idle control worked perfect right from the beginning. higher idle at cold start, dropping during warm up as you would expect, just as factory. despite a 1.4l ECU controlling a 1.0l engine.
our european ECUs are not reprogrammable, maybe yours are. if yes, you have some clever folks on your side of the world regarding GM ECUs https://pcmhacking.net/forums/
but i found it not neccessary to begin with.

the paperclip is also used to read the fault codes via a blinking MIL. but i never had a fault so i didn't try my universal diagnosis software, cheap ebay one that can handle pre-OBD2 systems

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Rover 214 atm ....

Crimp my ride did a drop in conversion of a distributor for crank angle sensing for efi conversion on a Datsun 1600 on the Skid Factory.

Can't be that hard to do the same on a Lucas distributor. That is effectively what the accuspark module does. The main thing to note is that you need to match the output required by the factory ecu to that you are able to provide. And to make sure you have good bushes in the distributor so no slop.

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the world is a book, and those who do not travel read only a page
66 Mini Minor sponsored by http://www.lifeonthehedge.com.au/ The Dog Harness Specialists
It was a pleasure ausmini. I'll miss all you misfits and reprobates

Thank you very much klas, I’ll be off to the breakers soon to get the bits.

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Lindsay Palmer
06 Mazda SP23
80 Alfa GTV (weekend toy)
86 626 Turbo (daily drive, now stolen)
71 cooper s replica
69 cooper replica
76 clubman
62 english 850
68 Mini Auto

Mick, I watched that conversion with great interest. I’ll probably build up to doing something similar on my Alfa once I’ve done the conversion klas has described to get a feel for injection conversions.

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Lindsay Palmer
06 Mazda SP23
80 Alfa GTV (weekend toy)
86 626 Turbo (daily drive, now stolen)
71 cooper s replica
69 cooper replica
76 clubman
62 english 850
68 Mini Auto