A dynamometer, often called a dyno, measures the force, torque, and power output of an engine. When applied to vehicles modified with aftermarket performance enhancements, such as a Stage 3 chip tune from a provider like Thornton, dyno testing provides quantifiable data demonstrating the impact of these modifications. These results typically showcase increases in horsepower and torque across the engine’s RPM range, offering a concrete illustration of the upgrade’s performance gains. A Stage 3 tune represents a significant performance upgrade, usually involving modifications beyond just software, such as upgraded fuel injectors, turbochargers, or other hardware components.
Quantifiable performance data provides evidence of the effectiveness and value of a performance upgrade. This information allows consumers to make informed decisions about modifications, comparing different tuning stages or providers. Historically, quantifying performance gains relied on less precise methods like track times, which are influenced by factors beyond engine output. Dyno testing offers a controlled environment, isolating the engine’s performance to provide more accurate and reliable data.
