UK Karting - Notice Board (2-Stroke Karting) : Re: Brake pedal points

Notice Board (2-Stroke Karting)

Re: Brake pedal points
Posted by 'SimonS' on 30 Jul 2014 @ 20:24

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SimonSJoined: December 2004
Total Posts: 4
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" i want to get my brake better than good for next time"

In your first post you state that " i'd like to push a little softer to get to the magic tyre chirp before lock up."

With any given brake, the master cylinder piston has to move the same distance and have the same force exerted on it in order to create enough friction to lock the brake. That is, the amount of work done must be the same.

The unit of work is the joule, equivalent to a force of one newton moving one meter or equivalent to a force of 2 newtons acting through 0.5 meters.

There is a mechanism of levers that connects your foot to the M/C piston to do the necessary work. The less pressure you wish to apply with your foot, the further your foot will have to travel, the less distance you want your foot to travel, the harder you will have to press.

You cannot both press less hard and move your foot less to do the necessary work.

Maximum pedal effect is meaningless because it is a personal preference, do you feel pressing harder is more efficient than moving further or vice versa.

With levers, mechanical advantage is determined by the distance the effort is applied from the fulcrum in comparison to the distance the load is applied from the fulcrum. You need to determine what is your 'ideal force for ideal distance' and adjust levers accordingly.

Indeed, you may find that rather than setting the
brake bar from one hole on the pedal to another hole on the 'master', you can get a more desirable result simply by raising or lowering where the footrest attaches to the side bar!

Message Thread:

Break pedal points by 'Matty42' (27 Jul 2014 @ 19:40)

Re: Break pedal points by 'Bigjim1978' (27 Jul 2014 @ 20:55)

Re: Break pedal points by 'Liam' (27 Jul 2014 @ 20:56)

Re: Break pedal points by 'Matty42' (27 Jul 2014 @ 22:02)

Re: Break pedal points by 'SimonS' (28 Jul 2014 @ 8:28)

Re: Break pedal points by 'Matty42' (28 Jul 2014 @ 22:39)

Re: Brake pedal points by 'SimonS' << You are here!

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