0.6 Ohm coils on IGN4 modules ?

[DynoDom]

Hello friends

This is my first post here.

I have Ford coils, OEM, on a Aluminator 52XS crate motor. Since the coils are conventional, they need IGN4 modules to be driven.

Coil details are: FoMoCo, DSVYA, FR3E-12A375-AA, D1930600038

Reading the instruction manual now, it is mentioned that the primary resistance must be >1 Ohm. Measured resistance is 0.6 Ohm.

I understand that the manual already states >1 Ohm, but still, I would like to ask here how critical is that really and if eventually someone has used these coils with success despite drawing more current through the IGN4 modules.


Thanks for the support in advance,

Dom

[Stephen Dean]

Hi,

We have used the Coyote version of those coils with the IGN4 in race situations, and I have tested a fair number of coils on the test rig using an IGN4 and lower than 1ohm resistance coils.

Make sure that the wiring for the coils is done correctly, and that the power supply for the coils is adequate, and there should not be issues.

[DynoDom]

Thank you very much Stephen.

Could you post the dwell settings you were using ?


Best regards

Dom

[DynoDom]

Again, thanks for the great support.

In the meantime though, a Motec Rep sent me your internal document with dwell Info.
For the benefit of others, I attach the Info here: