RPM Chip Tester

The RPM Chip Tester from MSD Ignition is an essential diagnostic instrument designed for engine builders, performance tuners, and serious automotive enthusiasts who demand precision ignition system verification. This compact yet robust tester addresses a critical gap in the modification workflow: confirming that your ignition module, coil pack, and timing control systems are functioning at peak efficiency before final assembly or troubleshooting expensive drivability issues. Whether you're diagnosing a dead cylinder on a street build or validating freshly installed performance electronics, this tool eliminates guesswork and saves both time and money on the dyno.

The RPM Chip Tester works by checking the integrity and response characteristics of MSD Ignition modules and ignition control systems, verifying that signal processing and switching commands execute correctly under load. Its compact 6.4 x 3.3 x 6.6 inch form factor makes it portable enough for bench testing or trackside diagnostics, while its modest 0.6 lb weight ensures it won't burden your toolkit. The tester's straightforward interface provides clear pass/fail feedback, eliminating ambiguity when evaluating whether an ignition component is within specification or requires replacement—critical intelligence when you're stacking thousands of dollars in cam timing, fuel mapping, and cylinder head work on top of a potentially compromised ignition foundation.

Engine builders, performance shops, and DIY tuners benefit most from owning an RPM Chip Tester, particularly those running MSD Ignition systems on turbocharged, supercharged, or naturally aspirated builds where ignition stability directly impacts horsepower delivery and reliability. It's equally valuable for diagnosing intermittent misfire conditions, verifying correct module operation after long-term storage, or confirming module compatibility before committing to a full engine swap. Having this tester in your pit box or shop ensures you catch ignition faults early, preventing catastrophic failures at the strip or on the street, and validating that your electronics investment is performing as intended.