Winter seemed extra long this
year, with snow remaining on the
ground longer than normal. That
was especially true up around 7000
feet where this photo was shot. The
snow was no problem for Donnie
Wood and Dave Konopatzke here up
on a mountaintop near Columbia
Falls, Montana. These Dirt Wheels
readers have their Grizzlies set up
with track systems, so they pretty
much go wherever they want.
23 YEARS AGO IN DIRT WHEELS
For the July 1991 issue, we tested
Yamaha’s Banshee 350, but we also
featured several more Banshees
that were much faster than stock.
Actually, there were six of these
twin-cylinder, two-stroke machines
modified by JD Racing. Our favorite had the 540cc stroker motor,
because it was insanely fast. On
Easter weekend back then, we took
it to Oldsmobile Hill at Glamis, and
it won every single drag race to the
top against steep competition.
In that July 1991 issue we also
reported on a new Yamaha quad
with a 250cc two-stroke engine. They
were actually put together by a company in England called Autoquad.
They came to the USA and bought
up every Yamaha Tri-Z 250 three-wheeler they could still find at
dealers. Then, they added on a four-wheeler conversion kit to the front
and sold them as new quads. It was
a smart move for two reasons. First
of all, at the time there was a ban in
England on selling three-wheelers.
And secondly, they could sell the
converted Tri-Zs for half of what a
Honda TRX250R cost over there. Just
another bit of ATV trivia from the
archives of Dirt Wheels.
Here’s something different. It’s a
turbine powered by an electric motor
that forces air into the intake similar
to an exhaust-driven turbo. Before
you get too excited, you need to know
that the hot exhaust spins a normal
turbo around 150,000 rpm. The electric
motor is probably good for 10,000 rpm.
But still, Airlutions claims that their
Air Rat turbine added 6 horsepower
to a RZR 1000. We haven’t tested one,
though, to verify that. We do think this
idea might be good for forcing cooler
air into the CVT housing, but not for
the $1600 price. You can get more info