Ronald Valentine Engines

The finest miniature engines in the world

Cox 020 Space Hopper

Here Ronald Valentine's custom Cox 020 Space Hopper glow engines. We modified many Cox engines over the years; some with front rotary, rear reed valve, rear drum rotary and disc valves. Some with dual ports and some schnuerle ported.

Technical data :



Bore                              7.8 mm
Stroke                           7.0 mm
Rpm                             30,200 rpm
Total combustion           0.33 ccm
Weight                           20 gram
Intake                           Disc Valve

Price                             $245.00

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