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The Tekno RC EB48 2.0 is built out of the box with a neutral setup but is highly tunable to your individual driving
needs. Before you start changing your setup on the car itself, it’s best to ensure you’re getting the best setup out
of your radio. It’s easy to forget that a lot of simple tuning can be done right from your controller. To help with this,
we recommend that you are well informed about setting up your Steering End Points (EPA), Dual Rate (D/R),
Exponential Curves, and Servo Speed.
Start by setting your steering EPA such that the vehicle can reach ‘full lock’ while on the ground. Be careful not to
go too far with this setting as it may damage your servo. Drive the vehicle around the track. If you are turning into
pipes or losing traction out of a corner, you probably have too much overall steering throw. The simplest way to
reduce this is with Dual Rate. Reducing Dual Rate will turn down both the left and right side EPA proportionately
without having to adjust the EPA settings independently. D/R is usually pre-assigned to one of the trim buttons
on most mid-to-high level radios.
The next setting is ‘Expo’ or ‘Curve’. Expo does not change your EPA or D/R, it simply turns the wheels less around
center and ramps up to the end points as you reach full lock on the steering wheel. We would suggest starting at
-10%. If you’re vehicle still feels “twitchy” around center, dial in more negative expo to continue smoothing every-
thing out. If it starts to feel too numb around center, dial some out.
Another valuable and often overlooked radio adjustment is “Servo Speed”. Servo Speed allows you to slow the
steering servo down from the transmitter resulting in reduced twitchiness. We like to set this at around -10 to
start. If you find that it’s too lazy, increase the servo speed slightly and run a few more laps. Repeat as necessary
until the steering response feels natural without delay.
After setting the servo speed you might find that you need to go back and adjust the expo setting. This is normal,
it might take a few adjustments of each to achieve the proper steering “feel” to suit your driving style and track
conditions.
The last setting to look at would be your brake end point or brake dual rate. Having brakes set correctly, can gain
you tenths on the track and improve your consistency. Start by calibrating your ESC with your throttle/brake end
points at 100%. Once on the track, try turning the brake end point/dual rate down to 80%. Under maximum
braking you’ll want your tires to be as close as possible to locking up without them actually doing it. Keep adjusting
the setting up or down until you find the spot that works best. Keep in mind that this setting will change from track
to track and even throughout the day as conditions will vary. (Be aware this setting will also affect your maximum
reverse speed if you are using reverse.)
With these five settings, you should be able to make your vehicle more consistent and easier to drive, lap after lap,
assuming the rest of the vehicle setup is close for your particular track. Of course there are many other factors and
setup options to tune on your vehicle, but sometimes all you need is a small radio adjustment to keep you headed
in the right direction.
Radio Information
Please read thoroughly
Notes:
Summary of Contents for EB48 2.0
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