O.S. Speed T1203 Touring Engine

O.S. Speed T1203 Touring Engine
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Price: $479.99
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The O.S Speed T1203 Touring Engine has been developed as one of the strongest small black engines available. Compared to the previous "T1202," this model has improved fuel consumption and more torque in the medium to low speed range, even on high grip surfaces. A thicker cylinder flange transfers heat effectively to the low CG cooling head for better heat transfer and reduction. The silicon filled crankshaft has been updated to optimize the rotational mass and follows the O.S. SPEED tradition with DLC coating to reduce friction, dual tungsten slugged counter-balance and a ceramic rear bearing to reduce vibration and increase RPM. The cylinder liner and piston have been hand matched for an improved fit and better seal. A 12F slide valve carburetor with shorter restrictor is included for quicker bottom to top throttle response.

  • Performance certified by Naoto Matsukura, 2019 IFMAR 1/10 touring car world champion
  • Re-designed Low CG cooling head w/ improved heat reduction
  • Hand-matched cylinder liner and piston for improved fit and seal
  • 12F slide valve carburetor w/ shorter restrictor for quicker
  • bottom to top throttle response
  • More powerful low to middle range torque
  • Rear ceramic ball bearings for reduced resistance
  • Thicker cylinder flange for better heat transfer
  • Silicone filled tungsten weighted crankshaft
Displacement: 0.128 cu in (2.1cc) 
Bore: 0.538" (13.67mm) 
Stroke: 0.56" (14.3mm) 
Practical RPM: 5,000-45,000 
Power Output @ 35,000 rpm: 1.75ps/1.73hp 
Weight: 7.58oz (215g) 
Plug: RP6 turbo plug
Crankshaft: UNF 1/4-28

This product was added to our catalog on May 17, 2019