Sonic 540-DR competitions Brushless drag racing motor Instructions
- June 5, 2024
- Sonic
Table of Contents
Sonic 540-DR competitions Brushless drag racing motor
INTRODUCTION
Congratulations on your purchase of Reedy’s Sonic DR Competition Brush less Drag Racing Motor. The Sonic DR is designed specifically for drag racing with features that create a performance advantage in this unique racing discipline. Like all Reedy motors, the latest brushless motor technology along with the engineering experience that is responsible for 30 World Championship titles has been incorporated into its design.
FEATURES
- CNC machined lightweight can
- Drag racing specific stator
- Low-resistance, silver plated solder tabs
- Optimized air cooling
- Dual precision ball bearings
- Drag racing specific balanced rotor
- High-strength magnet
- Adjustable timing
- Completely rebuildable
- Competition proven
WARNING: The Sonic 540.DR uses an internal design that does not meet ROAR/EFRA/BRCA/IFMAR specifications. It is not legal for use in competitions sanctioned by these organizations. Please read the following before installing and using your new motor.
INSTALLATION AND MAINTENANCE
- Your motor should be installed using 3mm screws with a length (generally 6mm or less) that does not allow the screw to extend into the motor more than 5mm. Otherwise, the screw can damage the motor’s internal components.
- Do not over-tighten the motor mounting screws. Doing so may strip the mounting hole threads.
- Solder the three leads from your Electronic Speed Control (ESC) noting the A, B, and C connections. Do not allow solder to bridge the gap between each connection.
- Plug the sensor cable into the motor and ESC sensor ports.
- To clean your motor, lightly brush dirt away on a regular basis paying particularly close attention to the area around the ball bearing. Occasionally add a small drop of bearing oil. DO NOT spray cleaners or solvents into the motor.
WARRANTY
Due to the competition nature of this product, this motor is warranted to the
original purchaser to be free from defects in material and workmanship at the
time of purchase. Motors that have been mishandled, abused, used incorrectly,
used for an application other than intended or damaged by the user are not
covered under warranty. Associated Electrics, Inc. is not liable for any loss
or damage, whether direct or indirect, incidental or consequential, or from
any special situation, arising from the use, misuse, or abuse of this product.
SPECIFICATIONS
- Cells …………………………… 2S Li Po
- Diameter (mm) …………….. 35.9
- Length (mm) ………………… 50.3
- Shaft Dia. (mm) ……………. 3.15
- Weight (9) ……………………. 170
PRECAUTIONS AND WARNINGS
- Please read the instructions before installing and operating your motor
- Avoid over gearing by monitoring motor temperature. Operating temperatures should not exceed SOC (175F)
- Be sure to use the proper size motor mounting screws
- Do not over-tighten the motor mounting screws
GEARING AND TIMING
The correct gear ratio depends on several factors, so it is impossible to
determine an exact ratio for any particular motor. Your best option is to
consult with other races in your class or the dealer from which you bought
your motor to determine a good starting gear ratio. Or you can visit
www.reedypower.com for an up-todate gearing and
application chart. Reedy representatives are also available by calling the
customer service telephone number on the website. Timing can be adjusted by
loosening the three screws and rotating the aluminum end cap. Rotating the end
cap counter-clockwise adds timing which increases the motor’s RPM. Be aware
that by adding timing, motor temperatures will increase and battery duration
will decrease. Motor longevity may be compromised. Those with limited motor
tuning experience should leave the timing at the factory setting.
Visit www.reedypower.com for a complete list of tuning rotors, spare parts, and a complete list of specifications. The crossed-out wheeled bin means that within the European Union the product must be taken to a separate collection at the product’s end of life. Do not dispose of these products as unsorted municipal waste.