5 replies to this topic

[Gene Johnson]

I just was gifted a twin point injection system well major parts of one, as pictured.

 

Can someone provide a system diagram that shows the entire parts list and especially the additional bits I need?  I know I need  some sort of ECU or EMS.  Is the Rover one findable, and wil t d the whole job?  Or am I needing a MegaSquirt or a K6 ECU (Engine Control Unit) or EMS (Engine Management System)? That's big Dollars, especially here.  Anything available used?  If it's too dear, I'll sell it on.

 

I'm running ready to start up a freshly rebuilt '72 Midget 1275 A series, stock bore , worked head Stage 1(?), 256 cam,1.5 roller rockers, Falcon downpipe on 3:2 C.I. Metro exhaust, HIF44.

 

This is a Minor PU, but the engine is basically the same.

Is the TPI  big improvement over the HIF44?

I also picked up a Metro Turbo system that uses a HIF44 blow thru.  Would it produce more and reliable power?

 

 

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[tmsmini]

There are alot more pieces to the puzzle.

Rover also used a cam sensor for the MEMS2J system with the MPi.

 

You may want to look at what Moss Motors offers. They a have an injection system for the B, but I am not sure if they have adapted it to an A series engine.

 

Even if they have not made it work on an A series, you can see what all it takes. I think they are at most an hour and a half south of you.

Terry

[orcadian]

Hi Gene,
As TMSMINI said, the stock ECU needs cam and crank position sensors to work out when to inject/spark. Also the twin point system doesn't have a distributor like your midget but uses a coil pack instead. Then you would also need 3 fuel pipes for flow, return and vent which is connected via an ECU controlled valve to a carbon can. The crank sensor uses the mini flywheel for detection and the cam sensor has a unit poking through a hole in the rear of the cylinder block. All of those could be solved and the cam sensor attached to the timing cover instead, crank sensor on bell housing perhaps? Is it worth it? Dunno, injection and electronic ignition are more precise but it's an almost 80 year old engine design! Depends if, like me, you like a challenge!
I put all of the bits of a crashed Cooper MPI into a 70's Clubman estate body shell.

http://www.stallard-...ubmanestate.htm

Ian

I may have a schematic somewhere if you proceed and forgot to say, the MPI fuel pump is in the tank but I got around that one

Edited by orcadian, 23 January 2022 - 06:57 PM.

[Tones61]

Weber 45
F.T.W.

[viz139]

You have the most complicated yet easiest part to bolt on, everything else needs to be fabricated or altered . Crank sensor, cam sensor ,ignition system, fuel delivery system, wiring loom and finally the ecu which will probably require some serious setting up. Injection camshaft are usually different as well. If you want a big project go ahead but not a quick fix.

[tmsmini]

Awhile back someone posted a link to this article, but I can't find the source at the moment.

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