GI; Coil to Plug Conversion kit for the Zetec engine

[darkstarmotorsports]

I have partnered up with another company who makes Coil-to-plug conversion kits for DSM market. Now they have started building these kits for the Zetec engine.

This would be a GREAT mod for those running boost or nitrous to avoid that blow out spark. The kit cost around $325 for the stock zetec vavle cover in a focus. I'm working on making special spacers so you can use it with early style vavle covers for those Contours who have VCT.

Please let me know what you guys think about this. Would it be worth creating a group buy for this?

 

[striker2]

I might as well post it here too

a few things.

1. Coil on Plug ignition systems are still DIS. DIS stands for Distributorless Ignition System.
2. Im not sure how they are converting it but i suspect its still a wastefire setup as the stock PCM only has 2 coil drivers. one for cylinders 1 and 4, and one for cylinders 2 and 3. i suspect they are just splitting the driver signal and going to the coils right on the plugs.
3. If im correct about 2 then all your doing is moving the coil closer to the plugs, which is nice but its not like its that far away to begin with.
4. The stock coil pack is more than capable of handling boost. if your getting blow out then you should decrease the plug gap (I was running .030 on copper plugs in my turbo Zetec) and/or install an MSD coil pack.
5. I do think it cleans up the engine bay nicely, espicially if you could get a cover for the coils.
6. The pictures you posted are of a stock SVT Focus since it has VCT. The regular Focus Zetec does not have VCT. It would seem that their current setup would work for the Cougar and 98+ Contours since they both also have VCT.

I am indeed correct about number 2 so this really only cleans up the engine bay a little.

 

[JonsZX2SR]

There may be other advantages going to a coil on plug arrangement. This is a good idea and you might want to sell the package for other 4 cyl Ford applications.

The Ford EDIS system uses 2 coils to fire 4 plugs in the arrangement shown in the drawing. Each side of the secondary coil is connected to a spark plug. The wasted spark is needed to complete the high voltage circuit.

The problem with this arrangement is the spark in cyl 3 or 4 fires with reverse polarity and if you lose one plug you usually lose two cylinders (unless the bad plug is shorted.)

Converting to a 4 coil on plug system is not without pitfalls. If the current draw firing 2 coil exceeds the design of the amplifier you could damage the electronics. Also firing two coils simultaneously in a parallel arangement can be tricky.

There are ways to make this work, for example, include a small capacitor and switching transistor with each coil and fire each coil by switching the transistors to ground the coil. I can see your conversion working very well if done right.