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       This is the O.S. Max 30VG(P) Rear Exhaust Monster Truck Engine
                        with Pilot Type Crankshaft.

FEATURES: Same mounting dimensions as .21 size engines making upgrading easier
          Advanced Bi-Metallic Liner (ABL) cylinder liner construction
            This process uses a double layer of plating material rather than
            one thick layer. This helps the metal bond to the cylinder and is
            more durable. Also, the plating process is more consistent,
            resulting in a more precise fit between piston and sleeve for
            better compression and longer life.
          Machined aluminum piston, 3-port cylinder liner and double bushed
            knife edge connecting rod
          21E single needle Slide Valve Carburetor (OSMG2449) with insulated
            sleeve to prevent fuel vaporization
          SG (pilot) type oversized crankshaft with rubber-sealed front bearing
            and oversized rear bearing to handle high torque loads
          Two year limited warranty

INCLUDES: O.S. Max 30VG(P) Rear Exhaust Monster Truck Engine with Illustrated
            Manual, #8 Glow Plug, #203 Air Filter, Two Foam Filters and two
            air filter O-rings

REQUIRES: Car blend nitromethane fuel with 10-30% nitromethane content, 20%
             nitro content recommended as starting point
          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.

SPECS:    Displacement: 0.298 cu in (5.0cc)
          Bore: 0.728" (18.5mm)
          Stroke: 0.717" (18.2mm)
          Practical RPM: 4,000-36,000
          Power Output: 3.0 ps/28,000 RPM
          Weight: 12.7oz (360g)
          Crankshaft Size: 1/4-28
          Factory Needle Valve Setting: 2-3/4 turns OPEN from fully closed
          Mixture Control Valve Setting: Needle head flush with the side of
              ball link housing then back in 1-1/2 turn
          Distance Between Mounting Holes Same Side: 0.83" (21mm)
          Distance Between Mounting Holes Opposite Side: 1.4" (37mm)
          Distance Between Mounting Holes Diagonal: 2.3" (59mm)
          Height Bottom of Mounting Ears to Top of Cylinder Head: 3.8" (97.7mm)
          Width of Mounting Ears: 1.8" (45mm)
          Width of Crankcase Below Mounting Ears: 1.2" (30.8mm)
          Distance from Front Bearing to End of Crankshaft: 1.2" (29.5mm)
          Distance from Center of Engine to Front Bearing: 1.7" (44mm)
          Distance from Center of Engine to Backplate: 0.85" (21.6mm)

          Needle Settings: High Speed: 2 3/4 turns out from fully closed
                           Metering Needle (low speed): flush with ball link
                                       body, then 1.5 turns in
                           Throttle Stop Screw: 1/2mm open from fully closed

COMMENTS: To use this engine on the Nitro Warhead use OFNG0098
                                                                   jxs 10/17/05
                                                                  rrb 2/21/06
                                                               updt lmm 4/14/09



– If you need more information, use these O.S. resources –

Click Here: Manufacturer's Product Web Page
E-mail: enginesupport@hobbico.com
Web Site: http://www.osengines.com/
Phone: 217-398-8970


 
Postal Address:
O.S.
3002 N. APOLLO DRIVE, SUITE #1
CHAMPAIGN, IL 61822  








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