K021 Instructions v1.0
Tuning
Page
73
TUNING SECTION
ABOUT ADJUSTMENTS
R/C race trucks, in general, are some of the most adjustable racing machines of any
scale. What’s really amazing is just how easy and quick it is to make all of our changes:
remove a ball stud to change roll center, one screw to change springs, or tape in some
weight to change the truck’s distribution. On top of that, the SCX – 60CF is even more
adjustable, adding options like the transmission height and the servo position that many
other trucks don’t have. It’s easy to get lost though, so here’s some advice from one of
the best in R/C racing, Brian Kinwald: “At any given track, only a few adjustments will
help the truck get around the track faster. 90% of set-up changes just alter how the
truck feels. The trick is to find those changes that really make a difference, and use the
rest of them to get the truck to suit your driving style.” If you ever feel lost, like the truck
isn’t working at all and you can’t seem to get it back on track, change completely back
to a standard set-up or something that worked previously and start again – it’s how we
learn!
When there are lap times available, pay attention to both your fastest lap and
consistency (how close the other fast laps are to the fastest one). If your fast lap is
significantly quicker than average, work on making the truck easier to drive; if you can
run close to that fast lap the whole race, add some more steering or power and see if
you can go faster.
Finally, don’t be afraid to acknowledge if a set-up change didn’t seem to affect the truck
on the track. Some adjustments are subtle, and different driving styles are sensitive to
various adjustments. Learning that an adjustment didn’t change much for you is a
valuable result – focus on other things, and perhaps try it again later as your driving
experience accumulates and set-up evolves.
DRIVING THE SCX – 60CF
The mid-motor SCX – 60CF much different than a rear-motor truck, and it can take a bit
of practice to get used to. With its weight more central the SCX – 60CF naturally carries
more corner speed. With no “pendulum effect” from the motor hanging off the rear axle,
the truck likes taking smoother racing lines, while the rear end stays more planted.
Watch out that you don’t slam into the back of other trucks through the infield!
