UK Karting - Notice Board (General Karting) : Re: Release Itpro!

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Re: Release Itpro!
Posted by 'Hi99' on 08 Nov 2013 @ 11:40

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Hi99Joined: April 2008
Total Posts: 1
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Going through this step by step…

a) Turn in – yes!

b) Let the rear disconnect – “disconnect”? A term that is somewhat “loose in its meaning” perhaps? By this do you mean weight transfer unloading the inside rear wheel to the extent that it disconnects with the track? Fully, or partially, maybe?

c) hold that so that the kart is at a (rough) tangent to the corner by choosing the cornering speed that lets you do that with zero steering angle – zero steering angle implies no slip angle at the front wheels / tyres. If the kart orientation is at tangent throughout the turn (perpendicular to the radius of the turn) then no slip angle is induced as a result of the kart’s position either, indeed it is pointing perfectly to go straight on. Oversteer could introduce slip angle, but the kart would no longer be tangential as you assert is important(?) In the physics of vehicle dynamics slip angle at the tyre / track interface is needed provide the source of centripetal force to prevent a cornering vehicle from going straight (off the track at a tangent). So in your description what is the source of slip angle? Not via steering input or oversteer, apparently.

If you had said following turn in that a combination of small, steering input and progressive oversteer was used sustain a drift around the complete turn then I can see the physics working – because slip angle is maintained. Could it be done purely using oversteer, and no further steering input? Quite possibly, it would depend on the ability to precisely control the amount of oversteer throughout the turn. Is this the optimum way to drive a fast turn? Not necessarily. May look fantastic in grainy old videos of Fullerton, but may not necessarily be the fastest method today.

The other interesting factor to consider is the effect on handling at the end of a turn when the inside rear wheel re loads and "reconnects" with the track. If the kart is still in the turn then a braking effect is likely to be introduced at the rear inside wheel due to the lack of a diff. In some car DSC systems I believe the inside rear wheel is braked to overcome understeer.

Could this be a possible source of the mythical “release”?

Message Thread:

Release Itpro! by 'd-i-y71' (31 Oct 2013 @ 17:12)

Re: Release Itpro! by 'itpro' (31 Oct 2013 @ 17:37)

Re: Release Itpro! by 'd-i-y71' (31 Oct 2013 @ 18:22)

Re: Release Itpro! by 'fatsam' (31 Oct 2013 @ 18:52)

Re: Release Itpro! by 'kezz99' (31 Oct 2013 @ 20:09)

Re: Release Itpro! by 'Liam' (31 Oct 2013 @ 20:35)

Re: Release Itpro! by 'raceinstructor' (31 Oct 2013 @ 20:39)

Re: Release Itpro! by 'Liam' (31 Oct 2013 @ 20:48)

Re: Release Itpro! by 'kezz99' (31 Oct 2013 @ 21:52)

d-i-y71 by 'NJB' (01 Nov 2013 @ 6:17)

Re: Release Itpro! by 'itpro' (01 Nov 2013 @ 9:37)

Ok.... so what do we have....? by 'itpro' (01 Nov 2013 @ 10:07)

Re: Ok.... so what do we have....? by 'd-i-y71' (01 Nov 2013 @ 11:43)

itpro for King! by 'Mark 71' (01 Nov 2013 @ 12:47)

Re: itpro for King! by 'fatsam' (01 Nov 2013 @ 13:29)

Re: itpro for King! by 'itpro' (01 Nov 2013 @ 14:42)

Re: itpro for King! by 'fatsam' (01 Nov 2013 @ 15:04)

Re: Ok.... so what do we have....? by 'itpro' (01 Nov 2013 @ 14:32)

Re: Ok.... so what do we have....? by 'Hi99' (01 Nov 2013 @ 14:47)

Re: Ok.... so what do we have....? by 'd-i-y71' (01 Nov 2013 @ 15:16)

Re: Ok.... so what do we have....? by 'Hi99' (01 Nov 2013 @ 15:37)

Thanks Itpro ! by 'kezz99' (01 Nov 2013 @ 17:03)

Re: Thanks Itpro ! by 'fatsam' (01 Nov 2013 @ 17:37)

Re: Thanks Itpro ! by 'itpro' (05 Nov 2013 @ 10:50)

Re: Ok.... so what do we have....? by 'itpro' (01 Nov 2013 @ 17:31)

Re: Ok.... so what do we have....? by 'raceinstructor' (01 Nov 2013 @ 18:00)

Re: Ok.... so what do we have....? by 'fatsam' (01 Nov 2013 @ 20:28)

Re: Ok.... so what do we have....? by 'NikG' (01 Nov 2013 @ 22:25)

Re: Ok.... so what do we have....? by 'fatsam' (01 Nov 2013 @ 22:34)

Re: Ok.... so what do we have....? by 'Liam' (01 Nov 2013 @ 22:47)

Re: Ok.... so what do we have....? by 'NikG' (04 Nov 2013 @ 15:05)

Re: Ok.... so what do we have....? by 'itpro' (04 Nov 2013 @ 19:52)

Re: Ok.... so what do we have....? by 'NikG' (04 Nov 2013 @ 21:13)

Re: Ok.... so what do we have....? by 'd-i-y71' (04 Nov 2013 @ 22:26)

Re: Ok.... so what do we have....? by 'itpro' (05 Nov 2013 @ 0:23)

Re: Ok.... so what do we have....? by 'NikG' (05 Nov 2013 @ 15:38)

Re: Ok.... so what do we have....? by 'itpro' (05 Nov 2013 @ 16:47)

Re: Ok.... so what do we have....? by 'd-i-y71' (05 Nov 2013 @ 17:32)

Re: Ok.... so what do we have....? by 'Liam' (05 Nov 2013 @ 20:35)

Re: Ok.... so what do we have....? by 'd-i-y71' (05 Nov 2013 @ 20:52)

Re: Ok.... so what do we have....? by 'Liam' (05 Nov 2013 @ 21:00)

Re: Ok.... so what do we have....? by 'itpro' (05 Nov 2013 @ 21:20)

Re: Ok.... so what do we have....? by 'Liam' (05 Nov 2013 @ 22:25)

Re: Ok.... so what do we have....? by 'itpro' (05 Nov 2013 @ 23:16)

Re: Ok.... so what do we have....? by 'itpro' (05 Nov 2013 @ 23:24)

Re: Ok.... so what do we have....? by 'Liam' (06 Nov 2013 @ 21:07)

Re: Ok.... so what do we have....? by 'itpro' (06 Nov 2013 @ 22:50)

Re: Please stop misquoting me.... by 'NikG' (08 Nov 2013 @ 17:03)

Re: Please stop misquoting me.... by 'itpro' (08 Nov 2013 @ 18:15)

Re: Please stop misquoting me.... by 'NikG' (08 Nov 2013 @ 19:54)

Re: Please stop misquoting me.... by 'NikG' (09 Nov 2013 @ 7:34)

Re: Please stop misquoting me.... by 'itpro' (10 Nov 2013 @ 18:33)

Re: Ok.... so what do we have....? by 'Liam' (01 Nov 2013 @ 22:36)

Re: Ok.... so what do we have....? by 'davidmc' (08 Nov 2013 @ 17:51)

Re: Release Itpro! by 'd-i-y71' (05 Nov 2013 @ 21:09)

Re: Release Itpro! by 'fatsam' (05 Nov 2013 @ 21:22)

Re: Release Itpro! by 'itpro' (05 Nov 2013 @ 21:37)

Re: Release Itpro! by 'd-i-y71' (05 Nov 2013 @ 23:29)

Re: Release Itpro! by 'Liam' (05 Nov 2013 @ 23:57)

Re: Release Itpro! by 'itpro' (06 Nov 2013 @ 12:29)

Re: Release Itpro! by 'itpro' (06 Nov 2013 @ 12:31)

Re: Release Itpro! by 'd-i-y71' (06 Nov 2013 @ 14:00)

Re: Release Itpro! by 'NikG' (06 Nov 2013 @ 15:36)

Re: Release Itpro! by 'itpro' (06 Nov 2013 @ 16:28)

Re: Release Itpro! by 'NikG' (06 Nov 2013 @ 17:56)

Re: Release Itpro! by 'SkintFather' (06 Nov 2013 @ 18:01)

Re: Release Itpro! by 'itpro' (06 Nov 2013 @ 22:54)

Re: Release Itpro! by 'Hi99' (06 Nov 2013 @ 19:49)

Re: Release Itpro! by 'NikG' (06 Nov 2013 @ 20:43)

Re: Release Itpro! by 'NikG' (06 Nov 2013 @ 20:44)

Re: Release Itpro! by 'fatsam' (06 Nov 2013 @ 20:55)

Re: Release Itpro! by 'Liam' (06 Nov 2013 @ 20:56)

Re: Release Itpro! by 'itpro' (06 Nov 2013 @ 23:06)

Re: Release Itpro! by 'Hi99' (07 Nov 2013 @ 8:17)

Re: Release Itpro! by 'SimonS' (07 Nov 2013 @ 11:25)

Re: Release Itpro! by 'buzzinrussell' (07 Nov 2013 @ 12:10)

Re: Release Itpro! by 'itpro' (07 Nov 2013 @ 17:44)

Re: Release Itpro! by 'itpro' (07 Nov 2013 @ 17:35)

Re: Release Itpro! by 'Hi99' (07 Nov 2013 @ 9:30)

Re: Release Itpro! by 'itpro' (07 Nov 2013 @ 10:45)

Re: Release Itpro! by 'Hi99' (07 Nov 2013 @ 11:48)

Re: Release Itpro! by 'itpro' (07 Nov 2013 @ 17:42)

Re: Release Itpro! by 'Hi99' (07 Nov 2013 @ 19:46)

Re: Release Itpro! by 'itpro' (07 Nov 2013 @ 20:08)

Re: Release Itpro! by 'd-i-y71' (07 Nov 2013 @ 21:28)

Re: Release Itpro! by 'itpro' (08 Nov 2013 @ 1:59)

Re: Release Itpro! by 'd-i-y71' (08 Nov 2013 @ 8:46)

Re: Release Itpro! by 'itpro' (08 Nov 2013 @ 14:08)

Re: Release Itpro! by 'd-i-y71' (08 Nov 2013 @ 14:52)

Re: Release Itpro! by 'Hi99' << You are here!

Re: Release Itpro! by 'itpro' (08 Nov 2013 @ 14:29)

Re: Release Itpro! by 'Hi99' (08 Nov 2013 @ 15:02)

Re: Release Itpro! by 'itpro' (08 Nov 2013 @ 16:27)

Re: Release Itpro! by 'stevenw' (07 Nov 2013 @ 21:47)

Re: Release Itpro! by 'baldyheadgreg' (08 Nov 2013 @ 8:10)

Re: steven w by 'NikG' (08 Nov 2013 @ 17:36)

Nik G by 'stevenw' (08 Nov 2013 @ 23:00)

Re: Nik G by 'd-i-y71' (09 Nov 2013 @ 9:35)

Re: Nik G by 'NikG' (09 Nov 2013 @ 19:41)

Re: Nik G by 'd-i-y71' (09 Nov 2013 @ 22:36)

Re: Release Itpro! by 'Hi99' (08 Nov 2013 @ 11:44)

Re: Release Itpro! by 'itpro' (08 Nov 2013 @ 14:32)

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