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PerTronix Ignitor II® Solid-State Ignition Systems

PerTronix Ignitor II® Solid-State Ignition Systems

$172.00
$172.00
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The PerTronix Ignitor II for 4-cylinder applications brings microcontroller-optimized electronic ignition to small-displacement classics, vintage sports cars, and economy vehicles. Whether you own a vintage MGB, Fiat 124, Toyota Land Cruiser, or classic Porsche 356 with a 4-cylinder boxer, this Ignitor II variant eliminates points and provides adaptive dwell control for that specific 4-cylinder distributor.

This Ignitor II module is tuned specifically for 4-cylinder distributors with the correct magnet sleeve length for the shorter distributor shaft profile of 4-cylinder engines. It operates on 6-16 volts DC with both negative and positive ground compatibility. The microcontroller adjusts dwell in real-time for optimal coil charging at every RPM. The module is epoxy-potted and comes with the magnet sleeve, wire harness, and all necessary mounting hardware. It fits entirely inside the distributor cap with zero external components.

You'll gain instant starts, a smoother idle, and no more points-related performance drop-offs at 5,000 RPM. The Ignitor II's adaptive dwell delivers noticeably more spark energy at low RPM where 4-cylinder engines need it most for smooth idling. Installation is a straightforward points replacement — roughly 20 minutes for anyone comfortable working inside a distributor.

Bring your 4-cylinder classic into the electronic age. Install the PerTronix Ignitor II and enjoy the reliability of modern ignition without altering your original distributor.
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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.