When you’re pushing a race engine past the 10,000 RPM threshold, you aren’t just fighting the competition—you’re fighting physics. At 12,000 RPM, the centrifugal forces acting on a rotating assembly increase exponentially. A crankshaft that feels “smooth enough” for a street build becomes a ticking time bomb on the track if dynamic balancing isn’t dialed in to absolute perfection. For …
Look, when you’re building a race-winning power plant that’s going to live at 9,500 RPM, “close enough” isn’t in the vocabulary. If you don’t respect the physics of rotational mass, torsional vibration will flat-out destroy a bottom end. At Fentech, we’ve spent decades engineering the machines that engine builders trust to achieve sub-gram tolerances, freeing up parasitic horsepower and keeping …