Re: Escort 2ltr electronic ignition options
2016/10/11 18:21:04
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The main consideration is the coil you are able to use and hence the energy of the spark.
If you can, find a Bosch dizzy with one of their BIM modules on the side.
These would be mated to the MEC717/718 or HEC717/718 coil. Plugs are usually set to 1.0mm to 1.2mm gap.
This gives you a high energy ignition - with benefits.
This delivers 3 to 4 times the spark energy than any of the alternatives that use the 3 ohm style coil (pertronix, 123 Ignition, aldon, etc).
The advantage of this type of dizzy with BIM is that it has variable dwell so has maximum energy across the rev range.
The BIM module also boosts spark energy at startup and cuts coil power if the ignition is left on without the engine running.
As with any of the "old" leaded fuel dizzies, it will need to be regraphed for unleaded.
I agree with 2T Institute that a programmable one would be very beneficial to use.
Have not seen one of those that also delivers optimum high energy spark, unfortunately.
In my case I went for the Bosch over a programmable but low energy setup.
In my case (1600 Kent) I am using a Bosch dizzy with BIM140 off a Fiesta..bought in the UK via eBay.
Performance Ignitions did the re-graphing to suit unleaded and my cam.
Really BIG difference to the previous Lucas fitted with Petronix and GT40 coil.