Go Kart engine – what is the difference between an engine listed as cc and one listed as hp?

go kart
DME B asked:


One go kart is listed as 126 cc, the other listed as 5hp. The mph listed for each is the same, so why call them something different?

Does the cc or hp mean something I am not aware of? Is there anything about either one that I should know…and obviously don’t?
The cc engine says 4 stroke, 1 cylinder. The hp engine doesn’t say anything else.
For an engine idiot, would that mean that one is better than the other…or is it just two ways of talking about the same thing?

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There Are 6 Responses So Far. »

  1. cc is the cylinder displacement…where as the hp is the rating of how many “horses” could produce the power of the engine.

  2. cubic centimeters for cc and usually a 126cc is a 2 cycle engine and the 5HP. engine is a 4 cycle, in other words the 2 cycle takes oil-fuel mixture and a 4 cycle takes plain gasoline to run.

  3. The cc refers to the cubic centimrters (capacity)of the engine.
    The MFG should tell you how much HP the engine develops
    HP ratings tell you how much shaft HP is develop at the out-
    put shaft.

  4. CC’s is the size of the engine as in cubic centimeters of displacement.HP is known as BHP brake horsepower calculated by a engine dyno!

  5. oh, where do i start. c.c is cubic centimeters. horsepower is a formula between torque an rpm. it is going to depend on volume efficiency of the engine. i have a 5 h.p. engine putting out 52 h.p. at 1100 r.p.m. but i have done a lot of work on it. and i’m running nitro. to it.

  6. 52hp out of a 5 hp engine… what a joke; you are seriosly dreaming, dude. either that or you are gullible enough to believe anything someone tells you. it ain’t possible. this is from someone who builds racing engines for go karts. these engines will not live at anything over 14 hp. i’ve got the dyno to prove it.

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