I'm using the PFC as a pseudo-standalone in my FC3S. It is very easy with the technical bits out of the way. I expect to see others follow this, and install REW's into places it does not belong such as light econ-boxes, pickup trucks, lawnmowers, boats, etc. Post you pics here!


I attached a PDF that has the basics. With your questions, I'll clear up any gray areas and update the document.

Here's what you will need:

Super cool recipient vehicle
PowerFC for FD3S
13B-REW with complete engine wiring harness
Pressure sensor with connector
Ignitor with connector
Condensor (with igniter)
One #1 Plug (details later)
Mates for connectors X-05 and X-14
Wire, relays, etc.

One #1 Plug (details later)

If you are purchasing a jap-spec motor, you will likely need to go hunting for the igniter, pressure sensor, etc as these are mounted to the body -- not the engine.

Here's the best part. Plugs number 3 & 4 may be plugged directly into the ECU without modification. If you love a simple setup the way I do, you will be tempted to de-loom the harness and strip it to the essentials listed in the attached document. Note that you can strip to various levels depending on if you keep the twins, oil metering pump, etc. If you wish to save time, just plug it in as-is.

Plug #2 is not needed!

Plug #1 must be located. There are several options for you.

1) Harvest the plug from a FD3S or any S5 (89-91 Rx-7) in a junkyard.
It's possible that other mazda vehicles use this plug
2) Using another engine harness from FD, S5 FC, or even a cosmo. The #1 plug is exactly 4 pins narrower than a #4 plug. Therefore, a #4 plug may be carefully cut on one end (removing the keyways as well) and serve as donor plug.

For X-05 and X-14, I find that the 'recall harnesses' are a plentiful source of these connectors. Of course you could always make your own plug since the number or conductors is very small. X-14 would only be used in a rare case, and there is really only one useful conductor. This could be skipped.

When you connect the igniter and pressure sensor (with +/- vref), you will find there are only a handful of remaining wires. These include:

+12 Constant
+12 Switched Ignition
+12 Cranking
Fuel Pump Relay
Redline / Diagnostic Buzzer
Ground

NOW do I have your attention? You can put this into ANYTHING with ease!

You could connect extras such as clutch switch, speedo, etc if your application uses it.

I was going to horde this info for myself, but I hope to see some bada** swaps performed. I only ask for an email with pictures!

Now, who will help me put one in a boat next?

 

What motor mount did you use?

 

Chassis specific swap info is accumulating here: https://www.rx7club.com/2nd-generation-specific-1986-1992-17/my-fc-rew-transplant-487478/

I'll keep information related to the use of a PFC / REW combination in this thread, and update the PDF as needed.