What is needed to run a HEI distributor?
In order to run properly, an HEI requires a full 12 volts at all times. The 20-gauge resistance wire must be replaced by a 12-gauge wire (pink to maintain the factory colour coding), hooked up to the HEI cap’s “BAT” terminal.
Is Delco Remy a HEI distributor?
GM’s High energy ignition (HEI), designed and built by the Delco-Remy division of General Motors starting in 1974. These units were used on all engines in 1975 through the mid-1980s, with several different variations over the years.
Do HEI distributors need a coil?
Most—but not all—HEI systems have the ignition coil mounted in the distributor cap. A control module and magnetic pickup are mounted in the distributor, in place of a conventional ignition system’s breaker points and condenser.
What is the size of the Delco Remy Hei wiring diagram?
Description : Gm Delco Remy Hei Distributor Wiring Diagram Wiring Diagrams Hei within Delco Remy Hei Distributor Wiring Diagram, image size 498 X 841 px, and to view image details please click the image.
Are GM HEI distributors still in use?
By Bobby Kimbrough April 18, 2014 General Motor’s HEI distributors are still going strong. GM’s High energy ignition (HEI), designed and built by the Delco-Remy division of General Motors starting in 1974. These units were used on all engines in 1975 through the mid-1980s, with several different variations over the years.
What does Hei mean on a spark plug?
The seven-pin control modules are referred to as HEI/EST (Electronic Spark Timing) distributors. All timing advance was pre-programmed into the computer, using information from an array of engine sensors. Base timing could be adjusted, however.
What is the difference between Hei EMR and Hei/ESC?
HEI/EMR Electonic Module Retard used a wire connected to a switch or to an electronic control package. Under certain conditions, the switch or control package will ground the wire, which triggers the retard feature built into the distributor module. HEI/ESC Electronic Spark Control used a knock sensor and an electronic controller.