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      This is a .21 Hyper 8-Port Racing Engine with Rear Exhaust from Ofna
             This engine is used to power 1/8 scale R/C kits.
       *NOTE* Some kits require extra items to install and operate
            this engine. Check kit requirements for these parts.

FEATURES: Oversized flow-through Gray anodized cylinder head
          ABC construction (Aluminum piston with a Chromed Brass cylinder)
          Rear exhaust
          Ball bearing-supported crankshaft
          Slide Valve Carburetor for 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.
          Needle valve adjusted by a screwdriver
          SG (Pilot) shaft

INCLUDES: One .21 Ofna Hyper racing engine w/Slide Valve Carburetor and rear
            exhaust
          One brass collet (these hold flywheel in place)
          One running and parts information sheets
          One Hyper .21 decal sheet

SPECS: Displacement: 3.49cc (.21 cubic inches)
       Bore: 16.26mm      Stroke: 16.8mm
       Horsepower: 2.7 @ 38000 RPM
       Weight: 350g (12.3oz)
       Carburetor opening: 15mm
       Length:  85mm (3.355") front of front bearing to back of pull start
               120mm  (4.72") pull start to end of crankshaft
       Width:   31mm  (1.21") width neglecting the mounting flanges
                21mm   (.83") mounting holes same side
                37mm   (1.5") mounting holes opposite side
       Height: 113mm (4.428") from bottom of crankcase to top of cylinder head
                16mm   (.63") distance from bottom of mounting flanges to
                             bottom of crankcase
        (contact Ofna for more technical information)

REQUIRES: Fuel with 5%-30% Nitromethane (20% is recommended) and a lubricant
              content of 16% or more
          Muffler or tuned pipe w/manifold
          Glow plug: long without idle bar, can use O.S. Max #8 (OSMG2691)

                                                                    JiM 7.31.03
                                                                         ir/jxs



– If you need more information, use these Ofna resources –

E-mail: help@ofna.com
Web Site: http://www.ofna.com/
Phone: 949-586-2910


 
Postal Address:
Ofna
7 VANDERBILT
IRVINE, CA 92618  








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