So I just got my 86' 13b 6-port donor for my LoCost project. It came with the stock crank sensor, but I will not be running an ECU (yet). I'm going to be running a carb and I have an earlier distributor with magnetic pick ups from another box of donor parts. I've been reading on the MSD upgrade to the leading spark plugs, and I think I have a fair understanding on it, I've found several write ups and diagrams here and thankful for it.

My question is about the trailing. My car is not an RX7 so I have no reference to the OEM wiring for the secondary pick and coil wiring. Does anyone have a good source to the wiring diagram for the trailing ignition so that someone can install this from scratch?

Parts that I have is the distributor (cap and rotor), stock 'can' coils as well as the '86 electronic coils, and plug wires. Thanks for any help.

 

I have a FSM somewhere I'll try to dig it up.

 

Here are FREE factory service manuals right here -> Foxed.ca: RX-7 Manuals

 

Foxed.ca - Mazda RX-7 Manuals

 

Oh how convenient. Can't find mine anyways so I'll be needing those as well.

 

Awesome. Thanks for the quick replies. I guess I need to ID the distributor tonight and find out exactly what year it is to make sure I get it right.