Demystifying Holley Terminator and Sniper Ignition Hookup Sniper EFI System Ignition Control with HyperSpark DistributorGm Hei Module Wiring Diagram Engine Scheme For Your - The 7 Pin HEI Module. With a GM HEI 7-pin (and 8-pin modules), the ignition module wires you need to know about are: tach signal is a purple wire with a white trace [pin R] goes to Ampseal OPTOIN+ pin #30 (ground the Ampseal OPTOIN- pin #31 at the distributor) ; advance control signal is a white wire [pin E] goes to Ampseal pin #12; override (cranking) signal is a tan wire with a black trace. General Motors HEI Ignition Control with MegaSquirt-II. There were a number of different kinds of General Motors HEI modules: 4 pin module - electronic ignition, but doesn't do computer timing control, top left; 7 pin module (large) - electronic module that does timing control, used with coil-in-cap distributors, top right; 7 pin module (small) - electronic module that does timing control. The spark duration can already range from 0 to 25.5 milliseconds. The GM HEI module provides a 'distributor-like' signal to MegaSquirt, so the missing tooth settings should not be used..
How to Identify Your Engine. To identify any GM engine from 1942 though at least 1964, you can go to The Casting Numbers Database.The following text on how to identify the engine we are working on presently will give you the clues you need to identify yours.. Introduction to MegaTune. MegaTune2.25+ is the Windows 95 (and later) configuration editor by Eric Fahlgren for the MegaSquirt ® and MegaSquirt-II EFI controller. It allows all of the tuning and set-up parameters to be modified and has a real-time VE table editor, which allow a vehicle passenger to tune the engine while driving.. Ford Speak: Acronyms, Definitions, and Terms. This booklet contains the Acronyms and Terms available on-line as part of the Information Management databases on the Ford Intranet..
This driver circuit is based on the commonly used 2n3055 transistor due to it high power switching capability. While these are cheap and high temperature tolerant, they are susceptible to voltage spikes caused by the inductive nature of the load (ignition coil).. Fukuoka | Japan Fukuoka | Japan.
Gm ignitions gm large cap hei distributors, 16 installation ... Gm ignitions gm large cap hei distributors, 16 installation instructions m s d | MSD 6520 Digital 6-Plus Ignition Control Installation User Manual | Page 16 ...