OS Max OSMG2067

This is the O.S. .21 VZ-B V-Spec Pro Modified Racing Engine with Aluminum Heat Sink Head. **Additional Technical Info Will Be Added When It Becomes Available.** V-shaped aluminum head with eight machined holes for lighter weight and more efficient cooling Piston and liner hand selected and matched for a better fit, more power throughout the band and much smoother acceleration Specially coated silicone filled crankshaft with precision ceramic rear bearing that greatly reduces friction, plus a Tungsten weight for added balance Slide Valve Carb with 7mm carb restrictor with red anodized finish allow tuning to specific track conditions, Low- end Needle adjusts from side to side for maximum adjustment ease O.S. .21 VZ-B V-Spec Pro Modified engine, 21J carburetor, 7mm carb restrictor, manual, exhaust gasket and dust cap set #203 Air Cleaner Assembly, OSMG2360 Exhaust System: T-2050SC WN MP Silencer Set (OSMG2969) Glow Plug: Medium heat range, turbo type Fuel: 10-30% nitro content, 20% recommended for break-in Most of the fuels we carry meet or exceed the lubricant content required for optimum performance and maximum engine life. In the past, the conventional lubricant content used in fuel was 18%. But with new advanced technologies, fuels like Red Alert and O'Donnell for example, have a better quality of lubricants even though the percentages of lubricant content are lower. These high-tech lubricants provide exceptional cooling and protection. Practical RPM Range: Output: Displacement: 0.211 cu in (3.46cc) Bore: Stroke: Weight w/o Muffler: Height from crankcase bottom to top of cylinder head: Height/crankshaft center to top of cylinder head: Width including mounting tabs: 45mm (1.8") Width not including mounting tabs: 30.8mm (1.2") Width between mounting holes same side: 21mm (.83") Width between mounting holes opposite side: 37mm (1.5") Cylinder head diameter: Length of exposed pilot shaft/crankshaft: Internal thread size at end of crankshaft: Turbo glow plugs do not require a copper gasket. With the carb restrictor, the driver can select either low fuel consumption or high power, allowing a wide range of engine control. Usage is as follows: 7mm: Suitable for technical (narrow) and bumpy course when less fuel consumption is more important. NEEDLE SETTINGS: These are pre-set from the factory and require little or no adjustment High Speed - 3 turns out from fully closed Throttle Stop Screw - 1/2 turn out from fully closed Mixture Control Valve (low speed) - Flush with indentation on screw head pointing at 2:00 jxs 01/05/09 updt lmm 4/14/09