ESC Overview:
The Spektrum RC Firma Losi® NASCAR 30A Brushless Smart ESC is a high-performance electronic speed controller designed specifically for 1/12-scale Losi NASCAR AWD racecars. With a powerful 30A rating and advanced Smart Technology, this ESC offers explosive acceleration, precise control, and all-in-one telemetry feedback directly to your Spektrum transmitter. Its waterproof* design allows for versatile use across a variety of track conditions, so you can focus on racing without worrying about the elements. Whether you're tuning your setup or pushing for the podium, the Firma Smart ESC is engineered to deliver consistent, intelligent performance.
About the NASCAR ESC
 
Smart Performance and Protection
Equipped with Smart Technology, the Firma 30A ESC automatically relays real-time telemetry such as voltage, current, and temperature to your compatible Spektrum radio system — no separate modules or sensors needed. It also offers multiple programming options to fine-tune your driving experience and includes built-in multi-point protection for thermal, over-current, and low-voltage safeguards. The waterproof* casing ensures durability in wet or dusty environments, making it ideal for serious racing conditions. Compact yet powerful, this ESC is a must-have upgrade for performance-focused drivers.
Features:
Smart Technology telemetry integration
Waterproof* design for all-weather use
30A power handling for 1/12-scale racecars
Multi-point protection system
Smooth, precise throttle response
No extra telemetry modules required
Multiple programming options
Compact and lightweight form factor
Includes:
(1) Firma Losi® NASCAR 30A Brushless Smart ESC
(1) User Manual
Specifications:
Application
1/12
Type
Sensorless Brushless
Continuous Current
30A
Peak Current
100A
Input Voltage
2-3S LiPo
BEC Output
6-7.4V Adjustable, 3A
Dimensions
1.1x0.23x0.62in (28x6x16mm)
Weight
1.34oz (38g)