10/06/2026
1974: The Foundation - A Drag Racing Carburetor
Lectron Fuel Systems was founded in 1974 by Norman Quantz, a WWII pilot and engineer. Quantz observed the vortices formed on the trailing edge of aircraft wings and recognized that the same pressure differential principle could be applied to fuel metering. This insight led to the invention of the Lectron metering rod—a tapered, flat-faced rod that creates a localized low-pressure wake inside the carburetor bore, drawing fuel proportionally to engine demand.
The original Lectron was designed exclusively for motorcycle drag racing. In drag applications, throttle input is essentially binary: closed at the line, wide open down the track. There is no need for nuanced transitional fuel delivery between throttle positions. The metering rod handled this perfectly—a single, continuous fuel circuit that replaced the pilot jet, needle, and main jet found in conventional carburetors.
The design was an immediate success. Lectron became OEM on Penton motorcycles, was offered as a factory option on Harleys, and quickly became the dominant carburetor in motorcycle drag racing, flat track, and road racing applications.
