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Old 06-02-2023, 07:54 PM   #9
Jabes1
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Join Date: Jan 2013
Location: Apple Valley, CA
Posts: 276
Re: HEI Power & By-Pass Wiring...

Quote:
Originally Posted by VWNate1 View Post
" Early ignition switches did not allow power to the ignition system when cranking the engine. "

Not sure where you ever got that idea .

The entire point of the second terminal on the starter solenoid was to by pass the calibrated ignition wire from the key switch when cranking so the spark was stronger .

I add HEI systems to everything and my simple method is one of those tiny cube relays that's rated for 50 amperes, kicked by the low power feed (7 ~ 9 VDC) from the key switch .

Easy and doesn't hack up the factory harness and isn't glaringly obvious .

The OEM coil will draw 50 amps? I like the idea of running it this way. I need to add a fusible link and I plan on connecting it to the accessory lug on the factory busbar. Do you run a fuse? How big of a fuse is needed?
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