O.S. (#13641) - O.S. 21VG-X (P) w/21F Slide Carb .21 VG-PX OS Engine
This is the O.S. Max .21 VG-P Pilot Shaft Sport Engine with Pull Starter.
Developed for 1/8 scale Car Use.
ROAR Legal.
FEATURES: 1/4-28 pilot (SG) crankshaft for Centax type clutch Advanced Bi-Metallic Liner. This process uses a double layer of plating material rather than one thick layer. This helps metal to bond to cylinders and is more durable. Also, the plating process is more consistent, resulting in a 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 glow plug Rear exhaust Two year limited warranty
INCLUDES: O.S. Max .21 VG-P Pilot Shaft Sport Engine with pull starter, Slide Valve Carburetor, exhaust seal ring, #8 glow plug and instruction manual
REQUIRES: Fuel: Nitro car blend with 10-30% nitro content and at least 16% lubricant Glow starter and track equipment
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 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 Engine to Pull Starter: 1.5" (38.5mm)
Some notes on Slide Valve and Rotary Carburetors: Rotary Carbs offer a larger response in the middle of the power band. This works well for off-road applications when throttle response must be varied. Slide Valve Carbs provide greater response at the beginning and end of the power band. This works well for on-road and racing applications for fast take-offs and high speed.
