Outdoor Power Equipment and Small Engines - horse power = how many cc's ??????

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2944daniels
07-22-08, 04:46 PM
hello. what is the formula for converting hp to cc,s ? for example i want to figure out what is the horse power on a 70 cc engine. thanks:thinker:

Pilot Dane
07-22-08, 05:35 PM
If only it were that simple. Displacement is only one factor that affects the amount of power an engine produces. Your engine can make different amounts of power depending on; fuel, carburation, rpm, ignition timing, cam profile, valve size, exhaust design, smoothness of the intake and exhaust passages, weather...
the_tow_guy
07-22-08, 05:48 PM
For instance, the 3.5L Honda Indy car engines put out roughly 750HP, about three times the HP of the same size engine in a Honda Accord.

rogerflies
07-23-08, 04:26 PM
And a LOT depends on how long you want it to reliably produce that amount of power.