O.S. (#13641) - O.S. 21VG-X (P) w/21F fall Carb .21 VG-PX OS Motor
This is the O.S. Max .21 VG-P Pilot Shaft Sport Engine with Pull Starter.
Developed for 1/8 scale vehicle Use.
ROAR Legal.
FEATURES: 1/4-28 pilot (SG) crankshaft for Centax type clutch Advanced Bi-Metallic Liner. This technique utilizes a double layer of plating material rather than one thick layer. This helps steel to connect to cylinders and is more durable. Also, the plating process is more constant, causing a far more precise fit between piston and sleeve for better compression, longer life. Pull starter Two-needle 21F Slide Valve Carburetor One-piece 8-fin Tornado cylinder head uses standard radiance plug Rear exhaust Two year limited guarantee
INCLUDES: O.S. Max .21 VG-P Pilot Shaft Sport Engine with pull starter, Slide Valve Carburetor, exhaust seal ring, #8 radiance plug and instructions
REQUIRES: gas: Nitro automobile blend with 10-30percent nitro content and also at minimum 16per cent lubricant Glow starter and track gear
SPECS: Displacement: 0.211 cu in (3.46cc) Bore: 0.654" (16.6mm) Stroke: 0.63" (16.0mm) Practical RPM: 3,000 - 36,000 RPM Power Output: 2.0 ps / 30,000 RPM body weight: 13.9oz (395g) Distance Between Mounting Holes Same Side: 0.83" (21mm) Distance Between Mounting Holes Opposite Side: 1.4" (37mm) Height Bottom of Mounting Tabs/Top of Cylinder Head: 3.4" (87.4mm) Width of Mounting Tabs: 1.8" (45mm) Distance from Pull Starter to Front Bearing: 3.2" (82.5mm) Distance from Center of Engine to Front Bearing: 1.7" (44mm) Distance from Center of motor to Pull Starter: 1.5" (38.5mm)
Some records on slip Valve and Rotary Carburetors: Rotary carbohydrates offer a more substantial response in the center of the energy band. This works well for off road applications when throttle response must be varied. Slide Valve Carbs offer greater reaction in the beginning and end of energy band. This works well for on-road and racing applications for fast take-offs and high rate.
