trouble shooting & rebuilding HEI ignitions | Grumpys Performance Garage [ IMG] ...Gm Hei Ignition Coil Wiring - 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. Car Craft tales you through the steps of how to convert a Ford or Chrysler ingition to a GM HEI for a high-performance, more-efficient ignition..
After 30 years of reliable service from my Accel module and super coil, I thought I would freshen up my HEI with new components. Well, the D2000 (flame-thrower?) module lasted 3 months and then died.. Buy A-Team Performance 65K Coil, 7500 RPM HEI Distributor Compatible With Chevrolet CHEVY/GM GMC Small Block/Big Block SBC/BBC 262 265 267 283 302 305 307 327 350 383 400 Small Blocks & 396 427 454 Big Bl: Distributors - Amazon.com FREE DELIVERY possible on eligible purchases. What is an HEI and how it compares to the stock Jeep CJ ignition system? When you look at a stock Jeep CJ-7 ignition system, it consists of a few key components..
General Motors DIS Ignition Control with MegaSquirt-II. Note: The following info was provided by a third party, and has not been verified. Use at your own risk.. MSD Ignition 8360 Details Chevy. Upgrade outdated points distributors or bulky HEIs with this MSD Pro-Billet Ready-to-Run distributor for positive street performance.. So your ready to wire up an HEI? Heres the summary in a nutshell; Replace the resistance wire that ran to your points system, from the fuseblock, with a 12guage wire (pink insulated if you want to remain factory compliant) and hook it up to the HEI "BAT" terminal..
Factory GM connectors are supplied for the “BAT” and “TACH” terminals. The connector bodies are keyed so that they only fit the correct terminals.. 36. All Items with QT, KT, GT or PT Suffix are Clam Shell Program Items. Pigtails - Two Lead #5439C (#5439PT) Universal 2-Wire Relay Heater-A/C-Wipers. MOPAR Micro-Processor IGNITION SYSTEMS. Digital Micro Processor Circuitry, EPROM Processor with Built in DEAD STOP Algorithm REV Limiter all designed and engineered IN HOUSE and every component is Proudly Made In USA!. Eliminates Ballast Resistor, 44KV Output on demand, Plug and Play, one simple wiring modification (Eliminate Ballast Resistor, Kit Included), stock mounting,.
MSD Digital GM high-energy modules with rev limiters allow you to adjust the rpm limit between 5,000 and 9,000 rpm. True high-performance modules built for HEI distributors, they produce 50 percent higher coil drive currents than the stock module.. Non-Computer Controlled HEI Setup For Performance This article deals primarily with older-style non-computer controlled HEI distributors. This is becuase there is so much performance left in them vs. stock AND since many people have ditched the computer in their 3rd gen cars and gone with a totally non-computer controlled engine..
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