Wiring Procedure; Late Model Gm Hei/Est Systems (External Coil); Ford Tfi Systems; Ford Duraspark Systems (Non-Computer Type, Without Module) - Mallory HYFIRE VI Series Instruction Manual

BASIC WIRING PROCEDURE
Step 1
Refer to Figure 2
Ensure that your vehicle is equipped with a ground cable between the engine block and fi rewall
(10 gauge or larger is required). Locate the harness with the LONG RED WIRE and one LONG
BLACK WIRE at the end plate of the HYFIRE
• Connect the LONG RED WIRE to the battery (+) post or battery (+) terminal on the
starter solenoid.
• Connect the LONG BLACK WIRE to engine ground or chassis ground.
• Plug into 2-pin connector with red and black wires coming from the end plate on
the HYFIRE VI.
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• Connect the Ignition Control Harness to the Ignition Control Plug at the end plate of
the HYFIRE VI Electronic Ignition Control.
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Step 2
Choose one method listed below for wiring the HYFIRE
(2a, 2b, or 2c)
(2a) Wiring method using Adapters and Harnesses (sold separately)
Special wiring Adapters and Harnesses simplify the installation of the HYFIRE
Ignition Control into newer vehicles. These adapters and harnesses allow you to connect the
HYFIRE VI Electronic Ignition Control between the ignition coil and the factory coil connector.
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They reduce installation time and wiring errors. Also, converting back to the factory ignition is
easy because there is no need to cut the original wiring. These instructions cover:
PART NO. 29042 – Connecting to GM HEI Systems (coil-in-cap, with OEM
ignition module)
PART NO. 29068 – Connecting to Late Model GM HEI/EST Systems (external coil)
FIGURE 2
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VI Electronic Ignition Control.
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VI Electronic Ignition Control
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VI Electronic
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PART NO. 29062 – Connecting to Ford TFI Systems.
PART NOS. 29039 and 29040 – Connecting to Ford DuraSpark Systems
(non-computer type, without ignition module).
PART NOS. 29040 and 29043 – Connecting to Early Model GM HEI Systems
(non-computer type, without ignition module)
PART NO. 29040 – Connecting to Mopar/Chrysler Electronic Systems (non-computer
type, without ignition module).
Connecting to: GM HEI Systems (coil-in-cap, with OEM ignition module), use Adapter
PART NO. 29042; Late Model GM HEI/EST Systems, use Adapter PART NO. 29068; Ford
TFI Systems, use Adapter PART NO. 29062.
Connecting Adapter PART NO. 29042, 29062 or 29068
Refer to Figures 3, 4, and 7 when connecting to GM HEI Systems; Figure 5 when connecting to
Late Model GM HEI/EST Systems; Figure 6 when connecting to Ford TFI Systems.
• Match wires by color from the Adapter to the Ignition Control Harness. Crimp all wires together.
• Disconnect the factory harness(es) at the ignition coil. Connect them to the Adapter that has
the RED and GREEN WIRES.
• Connect the Adapter that has the YELLOW and BLACK WIRES to the ignition coil. NOTE:
When using an aftermarket ignition coil with post type terminals, discard the Adapter that
has the YELLOW and BLACK WIRES. Install ring terminals on the Ignition Control
Harness YELLOW and BLACK WIRES. Connect the YELLOW WIRE to the ignition coil
(+) terminal. DO NOT allow any wire except the YELLOW WIRE to make contact with the
ignition coil (+) terminal. Connect the BLACK WIRE to the ignition coil (–) terminal.
• Go to Step 3, page 9.
FIGURE 3
BLA
BRO
3