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EDIS Ford Bronco

This document provides details on converting a 1966 Ford Bronco engine to use an EDIS ignition system integrated with a MegaSquirt engine management system. It describes the parts needed, including an EDIS 8 module, trigger wheel, VR pickup, coil pack, and MegaSquirt controller. Steps shown include building the trigger wheel, VR sensor mount, powder coating parts, and installing components like the coil packs, EDIS module, and MegaSquirt controller. The conversion allows for more precise timing control, bigger spark plug gaps, and full fuel injection for off-road use.

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Jameel Khan
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330 views13 pages

EDIS Ford Bronco

This document provides details on converting a 1966 Ford Bronco engine to use an EDIS ignition system integrated with a MegaSquirt engine management system. It describes the parts needed, including an EDIS 8 module, trigger wheel, VR pickup, coil pack, and MegaSquirt controller. Steps shown include building the trigger wheel, VR sensor mount, powder coating parts, and installing components like the coil packs, EDIS module, and MegaSquirt controller. The conversion allows for more precise timing control, bigger spark plug gaps, and full fuel injection for off-road use.

Uploaded by

Jameel Khan
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Ford EDIS Megasquirt Conversion 0

Justin Finney provided us with a writeup on use of a DIYAutoTune MegaSquirt EMS systems, trigger
wheels and installation of a Ford EDIS ignition system on a 1966 Bronco.

Ford EDIS Megasquirt Conversion


289 302 351

Why Do this Conversion


• Bigger spark (no spark lost from the rotor to cap)
• Precise timing (timing chain slack and distributor gear wear can throw off timing)
• Control timing curves from your computer
• Larger spark plug gap
• Proven Technology (used on ford cars and truck for the last 15 years)

Parts List
• MSD or Motorcraft Coil Pack MSD-8241
• EDIS 8 Module
• VR Pickup
• Megasquirt
• Trigger Wheel
• 4 Bolt harmonic balancer
• Single Pair shielded wire
• Aluminum scrap
• EDIS Plug wires

I started considering this conversion when I switched my 1966 Bronco to Megasquirt. Having full
injection when off roading is a must. With fuel injection you do not need to change jets or metering
rods at high altitude. Now I have immediate throttle response and can stomp at any angle. I used a
Holley-projection 700CFM throttle body.

Engine Specs
• 289 Cubic Inch engine
• Edelbrock Performer RPM Air-Gap Manifold
• Holley Pro-jection 700 CFM throttle Body
• Megasquirt II with 3.57 Board
• Heavily ported heads, hardened seats, Enlarge valves, Comp Cams triple springs
• Comp Cams Roller Rockers
• Comp Cams retro fit roller cam conversion XR282RF-HR10
• Headman Headers
• Victor Series Water Pump
• Billet Pulleys

Building The Trigger Wheel and VR Mount


I used my drill press to drill the 4 evenly spaced holes in the trigger wheel. I lucked out because I
basically eyeballed it.
Building the Crank trigger wheel and VR Mount.
EDIS-8: missing tooth is exactly five teeth (50�) ahead of the VR sensor.
Having an extra timing chain cover made building the VR sensor mount allot easier. Most off this
was just eyeballing. No formulas or calculations.
Parts Preparation
Sand Blast Cabinet
Harbor Freight Powder coating machine

Powder Coated and ready for Oven


Put in Oven
325 degrees for 15 Minutes. Beware! This is sure to activate angry wife syndrome.
Finished Wheel and Mount

First Mounting
Testing VR Mount
Cam Position Sensor off an Explorer 5.0. The only point of this part is to drive the oil pump and
cover the hole left by the distributor.
Mounting Coil Packs and building wires. I used the coil pack mount off a 5.0 Explorer.
5.0 V8
cylinder locations
4//////////////8
3//////////////7
2//////////////6
1//////////////5
coil idetification
4 7 ///////////////3 5
8 2 ///////////////6 1
Mounting the EDIS Module and Megasquirt. This is Mounted under dash. Megasquirt is awesome.
Finished Product

I was using an MSD mechanical advance distributor and 6AL before the upgrade. Now I can control
timing curves through Megasquirt. I can also run much bigger spark plug gaps. The system is way
more precise then running a distributor. I will be adding an MSD DIS-4 Soon.

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