Say
hello to the JCB Fastrac Two, or WFT, the world’s fastest tractor as certified
by the Guinness World Records earlier this year. Driven
by former bike racer Guy Martin, the modified tractor set a world record of 217.568 km/h over a two-way average on October 23 at Elvington
Airfield in the UK. Not only that, the Fastrac Two was clocked at a peak speed
of 247.470 km/h!
This
enabled it to demolish the previous 166.7 km/h record set by Guy
Martin in another modified JCB Fastrac special in June. Before asking why and
how, you should know that this is anything but an ordinary tractor. Apparently,
the British construction and agricultural machinery specialist was not that
pleased with the initial 103.6 mph record set by the JCB Fastrac so it built a
more radical machine. After all, the world needed a 241 km/h tractor,
right?
As
you can imagine, this is a technological tour de force that pushes the limits
of tractor design into a direction this type of utilitarian vehicle was never
meant to go. Unlike most tractors, the production JCB Fastrac that the
record-breaking machine is loosely based upon features full suspension front
and rear, ensuring better road manners than an ordinary tractor.
That’s
pretty much where the similarities end because the world’s fastest tractor is
from a very different breed than the production model. For starters, it packs
1,016 horsepower at 3,150 rpm and over 2,500 Nm of torque
from a highly-modified JCB Dieselmax 7.2-liter six-cylinder turbo diesel
engine.
Compared
to the stock motor, the upgraded version features a larger turbocharger
producing 5.0 bar of boost, an electrically-powered supercharger to keep the
turbo spinning at low revs, water injection and charge-air cooling through ice
tanks – necessary to reduce intake temperatures by 50 degrees Celsius (122
degrees Fahrenheit). Engineers also revised the exhaust manifold for improved
flow.
Factor
in the lowered body, Williams Advanced Engineering aerodynamic kit and
countless other modifications, including a ZF six-speed H-pattern manual truck
gearbox, and you can begin to understand how on earth the JCB Fastrac Two
tractor was able to exceed 150 mph.