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Thread: TorqPro-TP70 70cc 4 stroke Gas Engine.
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Old 11-10-2014, 07:13 PM
  #24  
torqproengine
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new video,
Four-stroke engine is more suitable for 3D-fly, faster throttle response and more linear torque curve.
https://www.youtube.com/watch?v=j1NUSJDFYJg
https://www.youtube.com/watch?v=P3aTn0f1X2g
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