Alpha Falcon B-Spec .21 3-Port Pre Break-in Engine/2159 Pipe Combo
Introducing the Alpha Plus Falcon-B .21 Nitro Engine, the newest flagship powerplant from Alpha Plus. This high-performance engine comes pre-broken-in from the factory, but thanks to a newly developed piston material, it requires approximately 3 liters (¾ gallon) of fuel for a complete break-in — a process that ensures exceptional durability and long-lasting compression.
The Falcon-B(H) features a hand-modified crankshaft with dynamic balancing weights for smoother operation and improved performance. Its hand-finished sleeve and new high-wear-resistance piston offer unmatched thermal stability and extended lifespan. Additional premium components include a ceramic rear bearing for reduced friction, an 8.0mm carburetor with interchangeable venturi inserts, and a redesigned cooling head with printed graphics.
Features:
- Pre-broken-in from the factory (requires ~2 liters fuel for full break-in)
- Hand-modified crankshaft with dynamic balancing weights
- New material piston with high wear resistance and stable thermal expansion (hand modified)
- Hand-modified sleeve
- Ceramic rear engine bearing
- 8.0mm carburetor with variable inserts and 3-needle tuning
- New cooling head with printed graphics
Specifications:
- Displacement - 3.49cc
- Bore - 16.26mm
- Stroke - 16.8mm
- Practical RPM Range - 4,000 to 41,000 RPM
- Peak Power Output - 2.86PS @39,500 RPM
- Weight - 360g
- Ports - 3 port
- Sleeve - ABC
- Crankshaft Diameter - 14mm
- Crankshaft Type - Anti-friction, silicone filled design
- Glow Plug Type - Turbo
- Exhaust Type - Rear
- Carburetor Diameter - 8mm fitted (variable)
- Carburetor Type - 3 needle
- Crankcase Material - Aluminium
- Cooling Head - Purple Anodised Aluminium