UK Karting - Notice Board (2-Stroke Karting) : reduction in parasitic loss

Notice Board (2-Stroke Karting)

reduction in parasitic loss
Posted by 'Danlee' on 06 Sep 2011 @ 23:01

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DanleeJoined: May 2008
Total Posts: 1
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What the ceramic bearings claim to do is to reduce friction in the drive line from the motor to the road wheels.
When you dyno an engine you will generally run it on an engine dyno and measure your BHP at the crank (or close to). If you then take the same motor, mount it to a kart and run it on a rolling road dyno which measures at the wheel you will see a reduction in BHP. This is parasitic loss (measured in BHP) derived from all the components in the system from the engine to the tyre that create loss of energy produced by friction etc.

Any reduction in friction is good. Dont know the values on karts but in WSBK a bike producing 185BHP at the crank would reduce to around 170 to 175 at the wheel on a rolling dyno.

Danlee

Message Thread:

Ceramic bearing, just a thought by 'jak70' (06 Sep 2011 @ 21:29)

Re: Ceramic bearing, just a thought by 'BrianP' (06 Sep 2011 @ 21:43)

Re: Ceramic bearing, just a thought by 'cosgrove78' (06 Sep 2011 @ 22:06)

Re: Ceramic bearing, just a thought by 'cosgrove78' (06 Sep 2011 @ 22:08)

reduction in parasitic loss by 'Danlee' << You are here!

Re: reduction in parasitic loss by 'John' (06 Sep 2011 @ 23:05)

Re: reduction in parasitic loss by 'djcv8' (07 Sep 2011 @ 10:17)

Re: reduction in parasitic loss by 'jak70' (07 Sep 2011 @ 12:56)

Unless it says you can you cannot by 'PhilipSharrocks' (07 Sep 2011 @ 13:00)

Re: Unless it says you can you cannot by 'LHkartlineuk' (07 Sep 2011 @ 18:38)

Re: Unless it says you can you cannot by 'jak70' (07 Sep 2011 @ 19:52)

Re: Unless it says you can you cannot by 'LHkartlineuk' (07 Sep 2011 @ 22:18)

Re: Unless it says you can you cannot by 'jak70' (08 Sep 2011 @ 9:36)

Re: Unless it says you can you cannot by 'ferniefan' (08 Sep 2011 @ 18:18)

Re: Unless it says you can you cannot by 'jak70' (08 Sep 2011 @ 20:39)

Re: Unless it says you can you cannot by 'djcv8' (09 Sep 2011 @ 11:49)

Re: Unless it says you can you cannot by 'ferniefan' (12 Sep 2011 @ 2:33)

Re: Unless it says you can you cannot by 'jak70' (12 Sep 2011 @ 7:37)

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