LRP ZZ.21s Sport Competition 3.5cc (.21) Off Road Nitro Engine (Davide Ongaro World Champion Edition)
About this part
Davide Ongaro World Champion Edition Nitro Engine
The ZZ.21s Sport Competition Off Road Nitro Engine from LRP is a high-performance powerplant developed for serious off-road racers. Designed as the Davide Ongaro World Champion Edition, this .21 engine delivers race-proven performance, durability, and efficiency. Built with advanced materials and innovative engineering, it offers the power and reliability demanded in competitive conditions.
About the ZZ.21s Sport Engine
CoolDownMax Cylinder Head
The redesigned CoolDownMax cylinder head improves cooling efficiency through an optimized cooling fin arrangement. This enhanced airflow helps maintain stable operating temperatures, even during long main events. Improved thermal management translates into consistent performance and extended engine life under extreme off-road conditions.
XTEC T6 Reinforced Engine Housing
The XTEC T6 engine housing is specially reinforced for heavy-duty off-road racing. Its robust construction increases durability and structural rigidity, allowing the engine to withstand harsh landings, vibrations, and high-impact track surfaces. This added strength ensures dependable performance in the most demanding race environments.
XTEC Heat-Insulated WorksTeam Carburetor
Equipped with the XTEC heat-insulated WorksTeam carburetor, this engine delivers precise throttle response and consistent fuel delivery. The included 6.5mm and 7.5mm aluminum venturi inserts allow fine-tuning to suit different track conditions and driving styles. Combined with the turbo combustion chamber design, it provides strong acceleration and optimized combustion efficiency.
Features:
- Davide Ongaro World Champion Edition
- CoolDownMax cylinder head design
- Optimized cooling fin arrangement
- 8 + 2 port configuration
- XTEC T6 reinforced engine housing
- Heat-insulated WorksTeam carburetor
- 6.5mm aluminum venturi insert
- 7.5mm aluminum venturi insert
- Turbo combustion chamber design
- Universal fit for major .21 engine mounts
Includes:
- (1) ZZ.21s Sport Competition 3.5cc (.21) Off Road Nitro Engine (Davide Ongaro World Champion Edition)
Specifications:
| Displacement | .21 cu.in (3.5cc) |
|---|---|
| Recommended Application | 1/8 Off-Road |
| Bore | 0.64in (16.2mm) |
| Stroke | 0.67in (16.9mm) |
| Intake Ports | 7 |
| Exhaust Ports | 1 |
| Carburetor Type | VCX3-A Aluminum Short Needle 9mm |
| Glow Plug | REDS TS3/TS4 |
| Recommended Fuel | 25–30% Nitro, 8–10% Oil |
| Break-In Fuel | 12% Oil |
| Weight | 12.17oz (345g) |