TopKart handling

Ruben Tarca · Joined: 26 Sep 2011 Posts: 21

I'm running Yamaha super can and the chassis works just fine at each cornner except a 45 degree sharp right hand turn.
Tried different set ups (with out loosing the other corners) and nothing seems to work, still I loose my rear end every time.
Do you guys have any suggestion?
As always I appreciate your advise
Thanks

Ihor Bilyy · Posted: Wed Aug 15, 2012 7:38 am Post subject:

Something is not correct. Hard to imagine 45 degree sharp turn. maybe you meant 135 degree.

TJ Koyen · Joined: 03 Oct 2004 Posts: 1455

Complete with rubbered-in racing line Wink

If it's only one corner, you might want to look at your driving or your line through the corner. Are you turning too abruptly/charging the corner too hard? On a tight corner though, any faults in your chassis setup will come to the surface though, since you're going to be loading and working the chassis quite hard in a tight corner.

Is it loose on entry, apex, or exit? That'll determine what you change, if anything.
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Ihor Bilyy · Posted: Wed Aug 15, 2012 8:36 am Post subject:

Oh, what is 180 degree turn than?
The turn Ruben is talking about is kind of hairpin but over the hill, where the highest point right in the middle. It is also the only right turn on a track.

TJ Koyen · Joined: 03 Oct 2004 Posts: 1455

Ruben Tarca · Joined: 26 Sep 2011 Posts: 21

TJ,
thanks for your response.
The problem is at entry
(And yes the turn is 45 degrees as your sketch)

Oscar Biondi · Posted: Wed Aug 15, 2012 11:23 am Post subject:

Ihor Bilyy · Posted: Wed Aug 15, 2012 11:30 am Post subject:

Yeah, it is more degree the more you turn. If you not turning, its is close to 0 or straight. We are not in geometry class.

TJ Koyen · Joined: 03 Oct 2004 Posts: 1455

Guys, all I'm saying is I consider it a 45 degree turn too. And to me a 180 is a hairpin. That's just how it's always been in my mind. I realize it's actually a 135 degree turn, but this is all semantics. None of this matters.

Ruben,

I'd first look at what axle you have in the rear and consider going to a softer axle or at least softening the rear up if you can. If you have too stiff of an axle, it will react very quickly, causing the kart to abruptly lift the inside rear and give you oversteer almost as soon as you turn the wheel.

Also try narrowing the front up in 5mm increments if you still need to get rid of more oversteer.
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Mike Goebel · Posted: Wed Aug 15, 2012 5:38 pm Post subject:

Turns shall be determined by the included angle from this point on.

Mike G.
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Oscar Biondi · Posted: Wed Aug 15, 2012 6:03 pm Post subject:

TJ Koyen · Joined: 03 Oct 2004 Posts: 1455

I measure turns by how much they hurt my ribs.
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Mike Goebel · Posted: Wed Aug 15, 2012 9:16 pm Post subject:

gregg boyce · Posted: Sat Aug 18, 2012 8:04 am Post subject:

Mike G,

There is if you're michael Schumacher!! Laughing

Gb
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Greg Wright · Posted: Sat Aug 18, 2012 9:49 am Post subject:

Just semantics, I agree however I"ve never heard of terming corners this way. Is a 90 degree turn actually 0 degrees?

No big deal, just seems odd to me.
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