SPi / MPi Tank Plumbing / Wiring
Turbo Mini Forums

Below is a pic of an MPi tank. As i understand, the SPi are exactly the same...

One thing to note, It seems to have a shorter filler neck - when installed into an older mini, the neck is around 6mm pround of the body/tank seal - making fitting a 'flippy' petrol cap very difficult!

Also, the tank might be 'loose' even when the securing strap is tightened right up. Clearly, the tank is a tiny bit smaller than the non efi tank. I just cut my tank strap, overlapped the pieces by 1" and welded it back together. Worked a treat.


http://up.turbominis.co.uk/up/mpi%20pump%20wiring.jpg

Alex Edit: Fixed Picture

Edited by AlexB on 28th Apr, 2008.

Bumping, as I had to edit this to fix the pic - I needed it!

I hope you don't mind me asking in a how to section but do people use two spade connectors to plug into the pump or do they source a plug from somewhere? :)

a matching connector can be found in many cars, most use it at the screen washer pump

nfauto, or vehicalwiringproducts will prob be your best bet

"Turbo's make torque, and torque makes fun"

"did you know you can toast potato waffles?"

Or you can use two standard 6mm female shrouded spades as I did on mine.

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."

Thanks guys, I have been held back with things so I haven't thought any more about this. I have insulated spades on at the moment, does anyone know the current draw by the pump?

Just thought Id add this as a guide, might be of use tho someone.
Shane

hi

this has been really useful but i have one question regarding the oil pressure switch, would the standard oil pressure switch work in this application or would an oil pressure switch that operated at say 20 psi and under be better? if so does anyone know where i can obtain one.
cheers luke

does anyone have a diagram to wire up to ignition thanks

shane in that diagram relay No1 is not needed. if you put the fuzed 12v feed straight into pin 30 on relay No2 it would function the exact same :)

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

I know if it is used just for the pump it only requires one relay, but was using the n/o and n/c contacts for other things.
Shane

quick question, what does the relay do? and do i need it? as i have just wired mine up, without any relay? also do i need that oil pressure switch wired in?

sorry for what seem like stupid quesitons, but i am a total novice..

The relay means that you can supply the pump with a good power source (e.g. direct from the battery), but have it switched on/off by the ignition or oil preasure switch etc. Running it direct from the fusebox/loom etc you run the risk of over loading the circuit, blowing fuses, melting wires etc etc

oh ok mate... i ran my wire from the ignition, with an inline fuse..so i think it should be ok...

thanks for the help buddy

The point of using the oil pressure is so that if you have an accident, the likelihood is that the engine will stop and hence the oil pressure will drop and the fuel pump will stop. This can be done in other ways, drive it of an ecu like the megasquirt, this stops the pump if the engine stops or possibly run it through an inertia switch. Or do all three.

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A man without a project is like a like a woman without a shopping list.

thanks for the insight mate...

cheers