I am working on a heat sink solution for cheap RX8 coils
 if you don't want to use the MSD versions. Either will work
 on the heat sink. A small 1 inch square 12 volt fan
 is optional on the heat sink.
 Paul Lamar

All this time and work to find a solution to cool a defectively designed
coils; plus projecting that all coils have a cooling issue when it seems
to my simple mind; using the D580 coil which has had none of those
problems (at least that I've heard of) would solve it.

Brian



I just had a thought, how about mounting the coils to an aluminum intake
plenum letting it double as a heat sink?  The backside would be cooled
continuously by ambient air with no need for a fan or blast tube.

Everett

That sounds like a wonderful idea. The p-port tubes run so
cool frost forms on them. I'll do a 3D.

Paul Lamar