HEI conversions supply voltage
Thread Starter
Drifting
Joined: Oct 2020
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From: Wisconsin
HEI conversions supply voltage
Looking into an HEI tach drive conversion. One vendor says you supply 12 volts to the distributor, another says 13.7 volts.
I wrenched on HEI's almost exclusively in the 80's, and I remember only running a keyed 12v to the distributor.
Is this really the same thing, just running voltage vs static voltage?
Thanks.
I wrenched on HEI's almost exclusively in the 80's, and I remember only running a keyed 12v to the distributor.
Is this really the same thing, just running voltage vs static voltage?
Thanks.
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You didn't post year of car, If yours has the ballast resistor, tap from the infeed side of resistor (not the distributor side)
Dr. Detroit
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And make sure to use a 12ga wire.......a common mistake is to use a smaller gauge and it will get hot and eventually damage the wire. It draws a fair amount of constant current.
Jebby
Last edited by Jebbysan; Apr 6, 2021 at 02:28 PM.
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Nope, I would take it straight from the key if possible (ignition switch or ignition switch side of the ballast resistor or comb connector on the steering column). Reason: all switched power goes through the ignition switch. There are many consumers of switched power and having as close to a dedicated line as possible is a good thing.
Thread Starter
Drifting
Joined: Oct 2020
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From: Wisconsin
On a related note, the distributors I’m looking at have hardened steel gears. My motor has a flat tappet hydraulic cam. Won’t that distributor gear eat the cam gear?
is there an intermediate gear between hardened steel and bronze that I should be looking to swap on there?
is there an intermediate gear between hardened steel and bronze that I should be looking to swap on there?
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On a related note, the distributors I’m looking at have hardened steel gears. My motor has a flat tappet hydraulic cam. Won’t that distributor gear eat the cam gear?
is there an intermediate gear between hardened steel and bronze that I should be looking to swap on there?
is there an intermediate gear between hardened steel and bronze that I should be looking to swap on there?
