UK Karting - Notice Board (2-Stroke Karting) : Re: kart scaling

Notice Board (2-Stroke Karting)

Re: kart scaling
Posted by 'Liam' on 28 Aug 2013 @ 20:59

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LiamJoined: March 2010
Total Posts: 1
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Just to add tuppence to the good advice already given...

I have occasional access to a professional standard flat patch and corner weight scales. I occasionally pop the kart on the scales with me in it, but as itpro quite rightly says, I don't feel I've ever learnt that much from it. Left to right, and more importantly weight distribution across the diagonals is considerably effected by the chassis and steering being straight. The best improvements I've had have been from putting the chassis on a flat patch (actually a full chassis build table if I have access) with V-blocks under the back axle and checking the front stub axle mounts are at exactly the same heights and angles as each other when the front of the chassis is resting on a central pivot.

In terms of fore/aft weight distribution, I tend not to worry about finding exactly what it is, but get a feel for what happens as I move the seat and the lead on the kart. It ends up being more important to me to know what the kart feels like when it's front-heavy, what it feels like when it's rear-heavy, and to be able to keep an eye on lap times to see if I'm actually making progress or just kidding myself. It might well be that I've ended up at a 60:40 distribution for my dry setup, but it's just as easy for me to use a tape measure to get the seat position (and try to remember where the lead was). What I DO know is that it's the seat position where the kart has worked best, and I haven't needed any special equipment to get it there.

I answer to the question about wet setup, seat forwards (15 mm for me) and up maybe 10 mm (haven't drilled the holes to try it yet) is the advice generally given. Unfortunately I've got enough other things that make a very positive difference to the kart when it starts raining - it's nearly always a rush to change from one setup to another. Becomes a question of how much you can do to the kart in the time available.

Corner weight scales are absolutely brilliant for race cars, especially in terms of getting even braking force from the front end and even grip at the rear. But for something without individual ride height adjustment like a kart I don't think there are a lot of gains to be had.

Liam

Message Thread:

kart scaling by 'tinnokart' (27 Aug 2013 @ 21:19)

Re: kart scaling by 'Drinkall' (27 Aug 2013 @ 21:39)

Re: kart scaling by 'tinnokart' (27 Aug 2013 @ 21:58)

Re: kart scaling by 'Sparkie' (27 Aug 2013 @ 22:01)

Re: kart scaling by 'Ditch' (27 Aug 2013 @ 22:25)

Re: kart scaling by 'itpro' (27 Aug 2013 @ 23:41)

Re: kart scaling by 'tinnokart' (28 Aug 2013 @ 18:58)

Re: kart scaling by 'itpro' (28 Aug 2013 @ 19:40)

Re: kart scaling by 'tinnokart' (28 Aug 2013 @ 20:00)

Re: kart scaling by 'Liam' << You are here!

Re: kart scaling by 'Ditch' (28 Aug 2013 @ 21:31)

Re: kart scaling by 'itpro' (28 Aug 2013 @ 22:34)

Re: kart scaling by 'John' (28 Aug 2013 @ 23:31)

Re: kart scaling by 'chriskasch' (28 Aug 2013 @ 23:53)

Re: kart scaling by 'itpro' (29 Aug 2013 @ 0:52)

Re: kart scaling by 'itpro' (29 Aug 2013 @ 0:50)

Re: kart scaling by 'tinnokart' (29 Aug 2013 @ 7:55)

Re: kart scaling by 'itpro' (29 Aug 2013 @ 11:49)

Re: kart scaling by 'PaulMRotax' (29 Aug 2013 @ 13:07)

Re: kart scaling by 'd-i-y71' (29 Aug 2013 @ 13:47)

Re: kart scaling by 'd-i-y71' (29 Aug 2013 @ 14:20)

Re: kart scaling by 'Farrang' (29 Aug 2013 @ 19:35)

Re: kart scaling by 'tinnokart' (29 Aug 2013 @ 19:23)

Re: kart scaling by 'itpro' (29 Aug 2013 @ 23:24)

Re: kart scaling by 'PaulMRotax' (31 Aug 2013 @ 11:43)

Re: kart scaling by 'Liam' (30 Aug 2013 @ 21:18)

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