914 relay board with 911t motor?

[porschetub]

As per title ,is it possible to use a 914 relay board with the 6 cylinder,another member on here is sorting out my engine loom so need to know soon ,thank you.

[HelmetHead]

Yes but you will need to jump the fuel pump relay. It is easier to just connect from the 14 pin coming to the relay board to custom wiring from the engine to a new 14 pin connector and do away with the relay board completely.

[porschetub]

Ok thanks ,so jumpering the f/pump relay is to allow contant operation of the carb fuel pump with the engine running....correct??,if not please advise.
14pin to 14pin,not sure there,surely you would be leaving curcuits unprotected and where do you wire the altenator 3pin for instance,I'am just asking but think I need that relay board?
My loom expert has recieved a modified diagram from me and says the fitment of a 12pin will work the rest of the 911t loom .
This is not my area of expertise so happy to listen to all comments,thanks.

[HelmetHead]

We just did a 6 conversion on a clients car. We wired the fuel pump on a separate relay located next to the fuse panel by splicing into the main harness to access the fuel pump (+) wire. The relay board at that point only holds the Voltage regulator for the alternator. We decided rather than relocate the voltage regulator to the firewall/bulkhead that an updated alternator with internal regulator would simplify the harness. Our host sells the factory 14pin connector with male pins to build a harness that plugs directly into the main wiring harness. Some of the wires in the original loom are left un-used but those were for the factory fuel injection system. There are wires in the harness that can be utilized to feed oil pressure and temperature gauges if you are updating the instruments.

[porschetub]

Thanks for sharing that info,yours was a great solution,I have good Bosch 55amp altenator (externally regulated),it will stay in this case so the board will also,you have been a great help ,cheers.

[HelmetHead]

This might also help.

http://www.914world.com/bbs2/index.php?act=Attach&type=post&id=186151

914World.com - The fastest growing online 914 community!

[porschetub]

Thanks, thats the drawing we are basing the change to 12 pin plug,all I have to do is find the plug,appears it is NLA .

[HelmetHead]

If you still have your 4cyl motor laying around, you could take the 12pin plug off of the harness there by melting the solder out of the little pins.

[porschetub]

No the 4 cyl motor has long gone ,car has been set-up for years for a six,the past owner was going 3.0SC power before I bought the roller,thanks.