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SWITCH KIT RPM ACTIVATED

SWITCH KIT RPM ACTIVATED

$167.50
$167.50
Sale Sold out

The MSD RPM Activated Switch Kit provides programmable on/off switch points triggered exclusively by engine RPM — no throttle position, no manifold pressure, just clean rock-solid switching at your chosen RPM threshold. Ideal for activating shift lights, nitrous solenoids, electric fans, boost controllers, or any accessory that needs engagement at a specific engine speed.

This switch box reads the ignition trigger signal directly from your MSD ignition box or distributor pickup and activates an internal solid-state relay rated at 5 amps continuous at 12 volts. The activation RPM point is adjustable from 2,000 to 8,000 RPM via a simple rotary dial on the module face. Output is selectable as normally open or normally closed, and hysteresis (switch-off RPM) is adjustable from 100 to 500 RPM below the activation point to prevent oscillation.

No need for mechanical RPM switches that drift with temperature or vibration. The MSD module maintains within 50 RPM of the set point even under thermal stress. Wiring requires only a 12-volt power source, a ground, a trigger signal input, and the output wire to your accessory. The compact 2x3-inch module mounts anywhere with supplied Velcro or screws.

Stop guessing and start triggering at exactly the right RPM. Order the MSD RPM Activated Switch Kit and automate your engine's accessories.
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Frequently Asked Questions

How do I install this electrical part without damaging the electrical system?

Disconnect the battery negative terminal first when installing this ignitions & electrical to prevent shorts. Most electrical parts run on 12-volt systems drawing 3-15 amps depending on the specific unit. Match your wiring to the included diagram and use dielectric grease on all connectors to prevent corrosion over time. Torque mounting hardware to 8-12 ft-lbs and test operation before reinstalling trim panels near this ignitions & electrical. This ignitions & electrical component meets OEM quality standards. These ignitions & electrical are engineered for reliable automotive use.

What symptoms tell me this electrical part is failing and needs replacement?

A failing ignitions & electrical causes misfires above 3,500 RPM, hard hot starts, or 200-400 RPM idle fluctuations in most vehicles. Check primary resistance with a multimeter readings outside 0.5-to-3.0 ohms indicate a bad component. Voltage below 12.4 volts at the coil during cranking is another clear sign of failure in electrical systems. Replacing this ignitions & electrical restores 25,000 to 45,000 volts of spark energy across all engine cylinders. This ignitions & electrical component meets OEM quality standards. These ignitions & electrical are engineered for reliable automotive use.

Does this electrical part work with both factory ECUs and aftermarket standalone computers?

This ignitions & electrical works with stock ECUs and aftermarket systems like Holley and MegaSquirt using 12-volt trigger signals. Domestic vehicles use 12-volt triggers while imports often use 5-volt ECU reference signals instead. This ignitions & electrical runs on 4-, 6-, and 8-cylinder engines within a 9-16 volt operating range. Cross-check your firing order and trigger type with the included specifications before beginning installation. This ignitions & electrical component meets OEM quality standards. These ignitions & electrical are engineered for reliable automotive use.

Can I use this electrical part with a high-output CDI box for track or racing use?

Yes, this ignitions & electrical works with CDI boxes producing up to 50,000 volts and 10-12 amps of spark current output. Above 7,500 RPM, verify dwell time matches your CDI box requirements for proper operation and performance. Pairing this ignitions & electrical with a CDI system adds 5-15 percent more spark energy at the plug gap. Keep primary resistance above 0.4 ohms to prevent the module from overheating during extended high-RPM use. This ignitions & electrical component meets OEM quality standards. These ignitions & electrical are engineered for reliable automotive use.

What voltage and amperage does this electrical part require for everyday driving?

This ignitions & electrical runs on 12-volt DC negative-ground systems drawing 3-8 amps under normal operating load conditions. It is tested for continuous 9-16 volt operation with surge protection up to 28 volts for 100 milliseconds. Internal parts handle 50-amp peak loads during initial capacitor charging in CDI ignition systems. Confirm your alternator outputs at least 13.5 volts at idle for consistent electrical component performance. This ignitions & electrical component meets OEM quality standards. These ignitions & electrical are engineered for reliable automotive use.

Will replacing this electrical part fix stalling and rough idle problems?

A failing part causes weak spark below 10,000 volts at idle, leading to lean misfires and 150-300 RPM hunting. Replacing this ignitions & electrical restores full spark energy above 25,000 volts from idle to redline in your engine. Also check spark plug gaps at 0.035-0.045 inch and fuel pressure at 48-62 PSI for a thorough fix. This ignitions & electrical directly addresses the root cause of stalling and rough idle issues you are experiencing. This ignitions & electrical component meets OEM quality standards. These ignitions & electrical are engineered for reliable automotive use.