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[Datsun 1200 encyclopedia]

EDIS

Revision as of 03:34, 1 September 2007; view current revision
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Categories: Engine Modifications | Engine Electrical System

The Ford EDIS (Electronic Distributorless Ignition System) is a computer-controlled ignition system that can operate independent of an ECU. This makes it a great low cost system for swaps. The parts are unbundant in American wrecking yards. The 4-cylinder version of EDIS is used on with 1.9 liter CVH engine in the 1990-1993 Ford Escort and Mercury Tracer, US models. You can make your own crankshaft wheel, or adapt one from the Escort, Mustang, Taurus or other Ford models. Unlike other similar system that require a Camshaft Phase Sensor, this uses a simple crankshaft toothed wheel. It is a wasted spark system.

See wikipedia:Ford EDIS


The parts from the wreckers needed are about $25-$100:

  • Crank wheel trigger
  • Crank sensor
  • EDIS module with a bit of the wiring
  • 4-tower coil pack
  • Spark plug wires

Using EDIS alone, it outputs a fixed spark timing of 10 degrees BTDC. You can drive the car like this! But using a relatively simple timing controller ($79 kit) completes the picture. Optionally you can program an entire spark curve map using a standard PC.


For technical details, see Ford EDIS technical information


Crank Trigger Wheel

The trigger wheel on the crankshaft has 36 teeth, with one missing -- the 36-1 style. Any wheel of this style can be used.

  • You can make your own crankshaft wheel out of sheet metal
  • or adapt one from the Escort, Mustang, Taurus or other Ford models
  • Ford UK trigger wheel Part No 1078767 is only 13 UK Pounds, and can be glued or bolted to most crank pulleys


For many details, see KEW Engineering


Parts

  • FORD EDIS-4 from 1990 Escort/Tracer 1.9L. Part Number: F1CZ-12K072-A
  • new Accel 4-Tower coil pack $56.95 at Summit Racing]
    acc-140018_w_m.jpg