🏁 Discover the O.S. SPEED R21 GT II engine, a benchmark in 1/8 GT racing engines, designed to deliver power, flexibility, and optimal performance. An evolution of the famous R21GT, this new generation significantly improves performance at low and mid-range RPMs, while maintaining excellent fuel efficiency. Ideal for demanding drivers, it guarantees crisp acceleration and ultra-precise engine response.
⚙️ Technical Specifications
- Type: Nitro GT competition engine
- Displacement: 3.49 cc
- Bore: 16.08 mm
- Stroke: 17.20 mm
- Power: 2.65 ps / 2.61 hp at 34,000 rpm
- Operating range: 4,000 to 42,000 rpm
- Weight: 362 g
- Carburetor: Dual-adjustable 22E(B) GT
- Venturi: 7.0 mm (AL2 red)
- Design:
- 5 scavenging ports
- 3 exhaust ports (IFMAR standard)
🧩 Contents
- 1x O.S. SPEED R21 GT II Motor
- 1x RP7 Spark Plug
- 1x 7.0 mm venturi (RED AL2)
- 1x Exhaust gasket
- 1x Set of dust caps
❗ Required
- GT 1/8 compatible exhaust system
- Suitable fuel nitro
- Air filter
🎯 Who is it for?
- 1/8 GT competition drivers
- Users looking for power and reliability
- Engine enthusiasts performance Nitro
- Ideal for On-road intensive use
🔄 Compatibility
- Compatible with 1/8 GT chassis Nitro
- Complies with IFMAR standards
