UK Karting - Notice Board (4-Stroke Karting) : Re: hp vs torque can u have both?

Notice Board (4-Stroke Karting)

Re: hp vs torque can u have both?
Posted by 'Arthur' on 21 Nov 2012 @ 18:00

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ArthurJoined: May 2010
Total Posts: 1
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Differences between the engines in lower revs are compensated by clutch slip. You will only wear one clutch faster than the other. The engine with more torque will pull its clutch to a higher stall rpm than the weaker engine (not in theory on an ideal clutch, but in practice it does). It will slip for a long time and waste a lot of the engine energy in metal wear and heat (try a standing start on one engine) while the other engine contributes less to acceleration. In higher revs one engine will pull while the other is "dragged along", maybe even causing an "engine braking" effect (one engine pulling against the compression of the other).

For every track there is a torque curve that works best. Tight tracks may benefit from low end torque for acceleration, while long straights and fast corners may require more power in high revs.

Tune your engine torque curve to the track characteristics (by means of cam timing, ignition timing and carb setup) and keep it the same on both engines.

Message Thread:

hp vs torque can u have both? by 'NickW83' (16 Nov 2012 @ 22:00)

Re: hp vs torque can u have both? by 'racingjase' (16 Nov 2012 @ 22:14)

Re: hp vs torque can u have both? by 'NickW83' (16 Nov 2012 @ 22:27)

Re: hp vs torque can u have both? by 'racingjase' (17 Nov 2012 @ 9:15)

Re: hp vs torque can u have both? by 'NickW83' (17 Nov 2012 @ 19:42)

Re: hp vs torque can u have both? by 'grommet' (19 Nov 2012 @ 17:51)

Re: hp vs torque can u have both? by 'Arthur' << You are here!

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