Originally Posted by
the_frozen_one
You can use something like mega jolt running a fiesta cps or similar to fire the original coils. Have even seen the mega jolt board built into a proper 1600i ecu box. Looks original but is easily replaced, probably cheaper too
that may well have been me, i fitted a megajolt into an rsi ecu case a few years ago when i fitted a tt kit as i wanted it to run coils, very easy to do and used all the standard wiring and i made up a lead that plugged into the standard crank sensor lead but converted it to a fiesta efi sensor, i also drilled the bottom end and used a efi flywheel but kits are readily available for converting the bottom pulley to take a sensor.
as Tony mentioned the rsi flywheel is unique as it has the 'magic tooth' on one of the teeth so would be difficult to reproduce but not impossible at a guess
this was the original rough version which i eventually refined a little, the relays are added to keep the fuel shut off system and 'eco lights' working
the advantage with this setup was it can be mapped to suit unleaded and a higher rev limit can be put in if the engine is setup for it,
by the time you buy a megajolt and trigger wheel setup it would probably be cheaper to buy a standard flywheel though