1986 Dodge Truck Conversion to FBO Ignition
and Non-Computer controlled FBO Stage 1 Distributor
Here is the old ECU location on my 85 D150, you can just unplug it and tuck it away somewhere.
You can remove the old ECU and replace it with the FBO unit or you can re-mount the ECU in a more convenient location. Just be sure wherever you mount the ECU it is GROUNDED. No ground no fire.
The existing blue wire from the harness and the new blue wire from the box get spliced together and plugged into one side of ballast resistor.
The brown wire from the ECU goes to the negative Terminal of the coil.
The red wire is in the harness on the passenger side near
the back of the Manifold and goes to the positive side of the coil. The old
coil was located up on the manifold where it's too hot, we like to see you move
the coil over to the fender where it's cooler.
This means you'll have to splice in a chunk of wire to get the power over to the
coil.
Green wire with the red tracer is not used, just tape it off.
These two wires, brown and grey have the plug
on them that plugs directly into the Distributor. Your all done turn the key
and set the timing.
If you run a tach hook it up Green tach wire to (-) Negative side of the coil.
If you have any trouble with setting up the distributor go here and read this
tech article:
How to install a distributor
This conversion is great for use in the UK and your older Ram will run much
better for it.
Spark Plug Reading
Carb Sizing
Hydraulic Cam Installation and Braking
Mopar Rear Ends
Remove/Install your Distributor
Cross Reference Demon to Holley
Mopar Valve Geometry
Torsion Bar Removal
Mopar Ignition Wiring Diagrams
What size Fuel Pump do you Need
Basics of Cam Specs
Mopar Distributors
Demon Carburetion Sales Policy
Valve Adjustment Chart
Ignition Tune Up Help
Mighty Demon Q&A
Secrets of Cam Design
Voltage Regulators
4 Pin/2 Pin Ballast Resistor
A688 Drop Cylinder Test
A688 Q&A
Computer Controlled Ignition Swap
GM HEI Distributors
Dual Pickup Conversion Instructions