engine managed by the ECU.
The first piece of the puzzle was building a bike that
was too fast for any rider to hold on to during a 30-min-
ute-plus-2-lap moto. Josh’s sponsors, HD Supply and Scrub
Blade, bought a Husqvarna FC450 for Jamie to transform.
The FC450 is a great platform to start with, as it pumps
out 57. 14 horsepower (on our dyno) in stock trim. The
multifunction handlebar map switch that comes standard
on the FC450 is the perfect control panel for Jamie’s ECU
brain. Jamie knows the pony numbers of the factory bikes
are somewhere in the realm of 60 to 63 horsepower. To get
Josh ahead of these high-powered engines off the start, he
needed to go above and beyond that while still keeping
reliability in mind. Josh’s new Jamie Ellis engine pumps
out 65 horsepower on his dyno (he got 55 horsepower on
his dyno with the stock engine). He said he could increase
horsepower even more, but the 20-hour maintenance inter-
vals would drop significantly, and the engine wouldn’t be
as reliable for the rugged outdoors.
THE HUSQVARNA FC450 ENGINE
To attain this high-horsepower number, the crankshaft
was balanced by drilling a hole in the crank, and then