Technical information

AUTOTRONIC CONTROLS CORPORATION • 1490 HENRY BRENNAN, EL PASO, TEXAS 79936 • [phone] • FAX [phone]
www.msdignition.com email: [e-mail]
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MARINE ENGINE PROTECTOR, PN 5468
The Marine Engine Protector is a universal rev limiter that can be used with inductive ignition controls. The rpm
limit is adjusted with a potentiometer from 3,000 to 8,000 rpm. It can be used on 4, 6 and 8-cylinder automotive
style engines. It cannot be used with an MSD Ignition.
Wire Functions
Red: To the coil positive (+) terminal.
Black: Connects to engine ground.
Orange: Connects to the coil negative (-) terminal.
White: Connects to the points output or electronic amplifier trigger wire.
Adjusting the Rev Limit
When the potentiometer is turned to the full counterclockwise postion there is no rpm limit.
When the potentiometer is turned to the full clockwise postion the limit is approximately 8,000 rpm for an 8-
cylinder, 10,000 on a 6-cylinder and 16,000 on a 4-cylinder.
GENERAL INSTALLATION OF THE MSD
MARINE ENGINE PROTECTOR