O.S. Engine 21VZ-B V-Spec AL High-Performance Nitro Engine  [OS-13897]

Precision Power from the O.S. Engine 21VZ-B V-Spec AL

The O.S. Engine 21VZ-B V-Spec AL offers consistent power delivery and robust build quality for competitive 1/8 scale use. It is engineered to respond predictably across a range of track conditions.

Aluminium Chassis Components for Thermal Control

Using aluminium in key areas improves heat transfer and helps the engine maintain performance during repeated runs. This engineering choice supports repeatable lap times and component longevity.

Tuned Carburetion and Smooth Acceleration

The slide valve carburetor and tailored exhaust layout deliver controlled throttle response and strong acceleration. The precision-balanced crankshaft lowers mechanical vibration for steadier handling at speed.

The 21VZ-B V-Spec AL is a dependable option for pilots who prioritise consistency and mechanical quality in their nitro powerplants.