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Old 03-18-2019, 08:21 AM
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patrickt patrickt is offline
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Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
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Quote:
Originally Posted by picah View Post
Question: should the power into the switch come from the ignition switch (12V switched power) or from the starter solenoid post (hot all the time HATT)? Is the only difference the ability to have my lights on with the ignition off or is there a better choice from a safety perspective.
The traditional feed to the Lucas switch is from the "always hot" post on the ignition switch -- and a zillion cars used this same wiring pattern in the 50's, 60's, and 70's. The danger in this set up is that the Lucas re-pop switches can only handle 15 amps, maybe, if you're lucky, and you will also experience significant voltage drop through the crappy Lucas re-pops. Go here for a discussion and easy upgrade, both for performance and safety: Headlight Wiring Upgrade
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