Morning!

So have a 1972 2.4 911E einsprizung motor going into a 1970 914-4 2.0L which had fully functioning injection.

All oil tank pipe etc sorted thanks to advice given on here... now just to connect electrics...

Anyone got any diagrams / advice / existing threads....

cheers.

Martin

oh... and its a euro engine, so I don't think it has all the speed switch stuff etc...

You are going to have to make an adapter wiring harness to work with the MFI on the engine. I can help with a wiring diagram for the adapter.

Do you have all the factory electrical bits such as the CD box?

I did a 2.4L conversion in my pre-Internet days.....1998 IIRC.
2 Haynes manuals one with a 74 914 wiring diagram & one with a 72 911 wiring diagram.......it took a week or 2 to figure it out making lots of squiggles on each.
I'm no electrical whiz but it worked as I squiggled it up....amazed me.

You'll need to have the RPM transducer, and the fuel filter console too. You'll have to wire a momentary contact switch for the cold start enrichment, and make sure you keep a fire extinguisher in the car too

auto Atlanta has a nice booklet with electrical connections at the relay board.

Do you have a link? I couldn't find it on their website.

The AA book doesn't cover MFI. You'll also need a hot air source for the thermostat on the injection pump. Someone makes a manual conversion that replaces the thermostat, but I've never got one of those and I'm not sure who sells it.

And the only way you can use MFI with a 914 is if you either find a set of the 916 heat exchangers (when the 916 project was cancelled, they sold them as 914-6 spares) or use the manual lever sold by Henry Schmidt at Supertech performance.

MFI isn't electrically complicated. Sit down with diagrams from both cars and you'll be able to sort it out.

If you've got 914-6 heat exchangers, you can weld a tube and run a hose to the thermostat on the injection pump. You HAVE to get hot air to the t-stat or the pump will never work right. I've never seen the Supertech set up, but it sounds like a good idea for a car without heaters.

There is also a relay for the cold start injection contraption in the 911 engine relay panel. I promise you the car will not start easily if the cold start injection is missing or disabled. I removed this panel from my '72 911 when I did my 3.2 swap, but if I were ever to put a 2.4 MFI motor into a car I would definitely want to keep it. You are going to need the external voltage regulator, 3 pin CD box, and all of the little MFI bits either accounted for and in good working order, or properly substituted for with things like the Supertech kit. Adjusting the MFI in a 914 is really going to be tough, too, which is probably why the factory used carbs on the -6. Here's the 2.4 MFI 911 relay panel for reference.

Acutally, from experience, it is much easier. You can get to the pump, and you don't have to go through the fan. Just a short, small flathead screwdriver.

And the factory used carbs on the -6 because it was cheaper and they didn't want the 914 out performing their flagship 911.

In the "FWIW Department" some of the 916's had MFI

I will some have the same questions for the conversion of my 914 !!!

Finally I buy too one 911 E '73 engine !!!!!

And I think Sr. ClayPerrine is the leader on these issues

Now I work on the body of rhe car and soon I working with the engine !!!!!

And because I think the best example in the forums are the pics and

the pics of my 914 6 gt clone !!!

That car is going to be too fast for that tiny island.

yes ||| the island is very little but have a lot of mountains roads near to my house !!!! and one race track !!!!

Our for make the conversion need your viewpoint, pics, ideas .................

Please

Please anybody can give your view point and instructoons because the body work on my car is near of the finish and I need start the work of the mount conversion to a engine 2.4 E on my 914 !!!!

Thank you guys