Technical Resource - Electrical
Acquiring a detailed working knowledge of how electrical components work and being technically familiar with all aspects of the electrical systems on your race car will be of benefit to the owner driver / mechanic. Furthermore being competent and comfortable with practical electrical skills will be of advantage too.

Fortunately most vehicle electrical systems (particularly those of a single seater) are fairly straight forward and simple to understand.
Cable Sizing
Alternator Belt Replacment
Ford Zetec 1800 Motorcraft 4 Cylinder Coil Pack
Spark Plug Removal, Inspection & Renewal
Varley Red Top Data Sheet
Varley Battery Application Guide
Alternator Charging Systems