Electrical & Ignition

What type of fuses should I use?
All British sports cars use ‘slow-blow’ rated fuses that are very different than the “fast-blow’ rated fuses that are commonly available in the United State...
Fri, 13 Jan, 2023 at 10:46 AM
How do I tell if my car has positive or negative ground?
Check the battery and identify the large cable that is attached to the chassis. For vehicles with two 6V batteries, only one will have a cable attached ...
Wed, 11 Jan, 2023 at 3:32 PM
How do I tell if I have a ballasted coil?
If the coil housing is not identified as ‘standard’ or ‘ballasted’ it can be checked with a multimeter set to Ω.  Use the instrument to test between the...
Wed, 8 Feb, 2023 at 10:25 AM
How do I identify the distributor model fitted to my car?
All Lucas distributors have a model number stamped or engraved in the housing, usually located adjacent to where the cap is secured or near the vacuum advan...
Wed, 11 Jan, 2023 at 3:33 PM
How do I convert to electronic ignition?
The Pertronix Electronic Ignition Kit can be installed in a few minutes by removing the original contact breaker/points and condenser and replacing them wit...
Fri, 3 Feb, 2023 at 11:46 AM
Does my car have a ballasted or non-ballasted ignition system?
Until the early 1970s, most British sports cars featured a standard non-ballasted ignition system with a 12V coil that produced a full power spark at that v...
Wed, 11 Jan, 2023 at 3:34 PM
Do British sports cars have a 12V or 6V electrical system?
With very few exceptions, almost all British sports cars manufactured in the postwar era have 12V electrical systems, including those from Austin-Healey, Ja...
Wed, 11 Jan, 2023 at 3:49 PM
Converting to Negative Ground
Before 1968, most British sports cars adopted a positive ground electrical system, despite the fact that automotive manufacturers everywhere else in the wor...
Wed, 11 Jan, 2023 at 3:57 PM