I upgraded the OEM coil packs with RaceGrade IGN1A coil packs. They contain an inductive ‘smart coil’ capable of producing extremely high spark energy (103mJ+) and are suited to anything from moderately-powered-endurance applications through 3,000+ horsepower blown-alcohol motors. Since no external igniter or CDI is required and high-quality connectors must be used due to the immense energy of this coil, a custom wiring harness is required.
RaceGrade coil packs on top and OEM coil packs on bottom. The RaceGrade coil packs are larger and have integrated heat sinks, upgraded connectors and steel inserts in the mounting holes.
I appreciate the simplicity and efficiency of mounting the coil packs to the valve covers, but I abhor the aesthetics. So, I spent a fair amount of time figuring out a location where they would be completely hidden, easy to service and out of the way. The top of the upper 2”x2” chassis tube under the body seemed a good location because, with the addition of a closeout panel, they can be completely hidden. I mocked several brackets, but they extended a little past the body which would interfere with the closeout panel. It then occurred to me that I could tweak the design to extend the bracket a little past the vertical 2”x2”, problem solved.
Six parts laser cut from 0.100” stainless steel, 10 aluminum spacers spanning three different lengths, and two 1/4”-20 grade 8 screws.
Bracket fully welded; the tabs and slots made fixturing easy, but I did fabricate two temporary aluminum spacers to replace the coil packs which allow me to tighten down the bolts to keep the ears from warping.
The bracket mounts with three 1/4”-20 screws that mount through the 2”x2” chassis rail. It’s easy to install/remove, very robust and allows the body to removed.
