Navigation

  • O. S. Engines .12XZ Speed Spec III

    Product Number OSMG1992
    $0.00

    y Please allow 5-7 days for free in store pick up or flat rate shipping.
    1/10 Desert Truck Rtr
    qty $0.00

    This is the 12XZ Speed Spec III Glow Powered Touring Car Engine from O.S. Engines. ****** Because of the expressed racing nature of this engine, ****** ****** ...*More

    This is the 12XZ Speed Spec III Glow Powered Touring Car Engine from O.S. Engines. ****** Because of the expressed racing nature of this engine, ****** ****** it is NOT covered by the O.S. 2 Year Warranty ****** ****** per page 8 of manual. ****** COMMENTS: 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. jxs 12/31/12 ir/jxs*Less

    Rating:
    Print This Page
    • Redesigned 12F2 (B) slide valve carburetor delivers sharp acceleration and instant throttle response with easier more reliable tuning DLC coating on crankshaft with pressed in Tungsten weights and ceramic rear ball bearing
    • Redesigned head button for better performance and improved acceleration
    • Slightly thicker cylinder liner with redesigned ports for better air/ fuel flow that boosts mid-speed torque and extends fuel mileage
    • Tapered surface on piston with a depression that works with the head button to maximize combustion and power
    • Bore:0.543 (13.8mm)
    • Crankcaase width below mounting tabs:1.02 (26mm)
    • Crankshaft Size:1/4-28
    • Cylinder head diameter:1.9 (49mm)
    • Displacement:0.128 cu in (2.1cc)
    • Height/crankshaft center to top of cylinder head:2.7 (68.7mm)
    • Length from backplate to end of crankshaft:3.2 (82.1mm)
    • Length from backplate to front bearing:2.1 (52.6mm)
    • Length from end of crankshaft to front bearing:1.2 (29.5mm)
    • Mounting hole diameter:0.12 (3mm)
    • Output:1.73hp @ 35, 000 RPM
    • Practical RPM Range:5, 000-44, 000
    • Stroke:0.55 (14.0mm)
    • Weight:7.9oz (225g)
    • Width between mounting hole centers same side:0.43 (11mm)
    • Width including mounting tabs:1.5 (39mm)
  • To browse selection and pricing, enter your Zip Code below then click SHOP THIS HOBBYTOWN.
    X
    HobbyTown locations within miles of