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17 dec. 2013
Stu Hilborn - Another Legend Has Left Us.
Another legend has left us.
Stuart hilborn, a pioneer of hotrodding has died of age. Stu became 96 years.
If your unaware of what he
brought to our world, his mechanical fuel injection system was
introduced to hot rods by influence of aircraft he saw during his
service in WWII.
Injection was already wide-spread on diesel motors, but
Stu engineered and converted it for use in flatheads running on
methanol in the early post-war years.
Hilborn explained: “Running
carburetors with methanol was a constant problem.
The methanol reacted
with the pot metal in the carburetor and turned into a white powder that
clogged the jets; so there was no venturi effect, and you lost power.”
He used surplus military aircraft pumps and his own homemade nozzles to
strike the perfect balance of fuel to air for each cylinder. While
racing and developing his fuel system set ups to 140 mph in 1947, Stu
rolled his minimal-protection streamliner, injuring his back badly.
promised his mother he would give up racing, but the injection
To prove the systems efficiency, Stu had Howie
Wilson run his repaired streamliner to 150 mph at the lakes in 1948,
becoming the first to hit that benchmark with a one way pass of 150.5
miles per hour. By 1952 Hilborn injection was running at Indy, and the
rest is history.