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Our HEI
distributor wiring kit makes it easy to get the wiring correct,
and proper wiring is critical to maximum spark output from the
HEI system.
The
HEI
(High
Energy
Ignition)
system is at its best when operating with 14volts input.
The older cars and trucks often had a ballast resistor
wire built into the wire harness, and the wire from the old
ignition coil should never be transferred to the HEI
distributor. The
ignition coil in the HEI system will not produce maximum energy
with a resistor or with weak wiring in the circuit.
Most
ignition switches will have the “ignition” terminal of the
ignition switch active (live) with the ignition switched
“ON” and also when switched to “START,” but not all
switches provide this function.
The HEI must be powered up during cranking, as well as
when the ignition is switched “ON” (or there will be no
spark during cranking).
The
instruction manual shows the correct wiring and the best method
for wire hook-up to the ignition switch wire.
A troubleshooting guide to the HEI distributor is also
included in the manual.
NOTE:
When running with mostly stock wire harness and HEI,
it’s a good idea to install relays for the headlights.
With original wire harness, the headlights draw power
from the dash wire harness, resulting in lower voltage at the
dash area when the lights are switched ON.
Our part # RLY-1, RELAY kits make the headlight up grade
simple, and it does stop the headlights from robbing power from
the HEI. Of course,
the headlights will be much brighter too.
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