LRP Zz.21S Sport Competition Engine

The LRP ZZ.21S Sport Competition Engine (SCH-LRP32113) is a performance-optimised .21 nitro engine designed to deliver smooth, powerful acceleration while remaining remarkably easy to set up. Developed for club racing with Davide Ongaro, it makes an ideal replacement tuning engine for existing .21 RTR platforms, bringing a clear step up in response and top-end pull.

A revised timing concept and an 8+2 port layout work with the new CoolDownMax cylinder head to improve efficiency and consistency over a full race. The heavy-duty XTEC T6 engine housing is engineered for the demands of off-road use, while the heat‑insulated WorksTeam carburettor provides stable tuning. Aluminium venturi inserts in 6.5mm and 7.5mm are included to tailor throttle feel and power delivery. A turbo combustion chamber is ready for Turbo style glow plugs. Suggested compatibility: major .21 engine mounts.

Features

• CoolDownMax cylinder head with improved cooling efficiency
• 8 + 2 port sleeve for strong, linear power delivery
• XTEC T6 heavy-duty engine housing for tough off-road use
• XTEC heat-insulated WorksTeam carburettor
• Aluminium venturi inserts included: 6.5mm and 7.5mm
• Turbo combustion chamber for use with Turbo style glow plugs
• Suggested compatibility: major .21 engine mounts

Technical Data

• RPM: up to 35,000 U/min
• Displacement: .21 (3.49 ccm)
• Power: 2.8 PS
• Class: 1/8 Buggy/Truggy
• Ports: 8 + 2