Dialing In Power With a Chainsaw Dynamometer

If you've ever spent a long weekend porting a cylinder or tweaking a carb only to wonder if you actually made the saw faster, a chainsaw dynamometer is the only tool that's going to give you a straight answer. Let's be real: we've all been there, standing in the driveway, blipping the throttle and thinking, "Yeah, that sounds crisp, it must have more torque now." But the "butt-dyno"—that feeling in your hands while you're buried in a log—is notoriously easy to fool. A little more noise or a slightly higher-pitched scream can make a saw feel like a monster, even if you've actually lost power where it matters. ...

February 9, 2026 · 6 min · Allesandro Metsinger