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This is the O.S. Max .21 VZ-B V-Spec-T (P) Off-Road 1/8 scale Racing Engine.
                Ideal for Mugens, Infernos, and hybrid trucks.

      ****** Because of the expressed racing nature of this engine, ******
      ******     it is NOT covered by the O.S. 2 Year Warranty      ******
      ******               per page 25 of manual                    ******

FEATURES: Hardened, chrome-plated, 4-port, cylinder and liner for
            high durability and long life
          Machined steel piston features parallel rings that trap fuel oils
            and use them as a seal to enhance compression and boost power
          Reshaped crankcase core ensures smoother air flow and more consistent
            performance
          Slide Valve Carburetor with 8mm and 9mm Carb restrictors allow
            tuning to specific track conditions, Low-end Needle adjusts from
            side to side for maximum adjustment ease
          V-shaped two-piece turbo head design provides fast heat dissipation

INCLUDES: One .21 VZ-B V-Spec-T (P) racing engine w/21J carburetor
          One P3 Ultra Hot Turbo plug
          One instruction manual w/OS decal
          One extra head shim/gasket(The other gasket is pre-installed)
          One 8mm carb restrictor
          One 9mm carb restrictor
          One exhaust port seal ring
          Two carb rubber gaskets
          One carb cover
          One exhaust cover

REQUIRES: #203 Air Cleaner Assembly, OSMG2360
          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:    Practical RPM:      3000-40,000
          Output:             2.48 bhp @ 33,000 RPM
          Bore:               0.654in
          Stroke:             0.630in
          Weight w/o Muffler: 12.7oz (360g)
          Height from crankcase bottom to top of cylinder head: 110.6mm (4.4")
          Height/crankshaft center to top of cylinder head:      95.3mm (3.8")
          Width including mounting ears:                           45mm (1.8")
          Width not including mounting ears:                     30.8mm (1.2")
          Width between mounting holes same side:                  21mm (.83")
          Width between mounting holes opposite side:              37mm (1.5")
          Cylinder head diameter:                                57.2mm (2.3")
          Length of exposed pilot shaft/crankshaft:              29.6mm (1.17")
          Internal thread size at end of crankshaft:                3mm

COMMENTS: Turbo glow plugs do not require a copper gasket.
          With the carb restrictors, the driver can select either
            low fuel consumption or high power, allowing a wide range
            of engine control. Usage is as follows:
              -9mm Blue: Fitted with Carb when it leaves the factory.
                         suitable for high-speed and flat courses
                         that require power.
              -8mm Red:  Supplied with engine. Suitable for technical
                         and bumpy courses and when less fuel consumption
                          is more important.

NEEDLE SETTINGS:
       High Speed - (see pg 17 of manual) 3 turns OUT from fully closed
       Metering Needle - (see pg 22 of manual) Head of screw is flush with
                         ball link body
       Mixture Control Valve - (see pg 22 of manual) Head of screw is 1 full
                               turn IN from flush with carb body
                                                                    jxs 5/18/04
                                                                upd NNA 7/20/04
                                             needle settings updated tjt 031705
                                                            Updated JBM 2.17.06



– 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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