Electrical mods for a SIX conversion, Are any required? Options

[Kerrys914]

Getting the last few things ready to start the conversion and am curious about the electrical conversion.

What is needed to modify the stock '74 electrical system to work with the 911 engine. I assume the Fuel pump + lead will come from the engine bay realy board.

I have a crane ignition system (Hi-6, XR-700, and PS-91 coil).

Thanks.

[Root_Werks]

There are only a few simple mods you will have to make. The biggest one is the wiring off of the alternator. There are 4 leads that come off the back of the alt.

B+
D+
D-
DF

The B+ goes down to the starter (big bolt terminal)

The other three simply use the 914-4 volt reg and just mach them up. Now for the trick, you can pull off the volt reg on the 914-4 circut board to find out which one is which, when you do that, the terms are flipped on the other plug on the circut board. It is hard to explain without drawing a picture. I know I did somewere on my 914-6 thread, flip through it. Other than that, I think the fuel pump wires go dead because there is a sensor tied into the engine (type 4 FI) that kicked power to them. I used a different power lead.

The oil idoit light wire is green/grey I think?

You use/modify the 914-4 wirring harnes. Shorten a few wires, lengthen a few if needed sort of thing.

ANother tricky one is (if I remember right?? (IMG:http://www.914world.com/bbs2/html/emoticons/wacko.gif) ) the wires that go to the coil are both black, so test which one comes live for the coil + term, then the other one is for the tach.

Wirring is on this page:

http://www.914world.com/bbs2/index.php?act...2&t=15282&st=60