O.S. .21XZ-R On-Road ABC Engine – Packed with performance!
Posted by Best R/C on Nov 2, 2009
The O.S. .21XZ-R On-Road ABC Engine is designed to take drivers to victory at major 1/8 scale on-road championship races! The tungsten-weighted crankshaft creates optimum balance for consistent low- and mid-speed torque while the cylinder liner features 7 scavenger ports and 3 exhaust ports for more efficient combustion.
- The crankcase and 21M carburetor are newly designed
- Lighter piston
- More durable con rod
SPECIFICATIONS
Displacement: 0.213 ci (3.49 cc)
Bore: 0.640 in (16.27 mm)
Stroke: 0.661 in (16.8 mm)
Practical RPM: 4,000-45,000
Power Output: 2.7 hp @ 33,000 rpm
Weight: 12.32 oz (348 g)
Retail OSMG2040 21XZ-R On-Road ABC Engine with 21M $699.99
Visit the O.S. Engines website at www.osengines.com