I'm going to add my two penny worth. I think Ian's theory that one should turn then return the kart to flat and maintain a zero steering angle does not apply to modern 'sticky' tyred kart. You can drive an indoor hire kart like this and be very effective and you used to be able to drive tkm's like this on the old maxxis greens (same with the old 100national).
So my interpretation of 'release' is the point at which your inside wheel returns to the ground. These are my phases of corner;
1 - Initial turn 2 - Loading the outside front wheel and lifting the inside rear wheel 3 - Maintaining a close to constant load (floating that inside rear wheel) 4 - Unloading the outside front wheel and dropping the inside rear wheel 5 - Applying the accelerator with the wheel close to dead ahead
The difference between my phases and Ian's phases are that i'm sure number 5 happens on corner entry for Ian (somewhere close to 3), whereas mine happens past the apex. However we are going at the same speed at this point of track but I have carried a lot more speed into and through the corner up until this point. My 5 phases of the corner can be most easily seen on the paddock bend at PFI. You can see the initial turn in, the wheel lifting, the maintaining lift and the wheel dropping clearly and on quiet day you can hear how late the good drivers get back on the throttle.
So if you apply phase 5 before phase 4 has finished you drop the wheel too early and the grip of the front wheels cannot overcome the rear wheels and you either go straight ahead or slow the kart down by applying more lock (bogging). The trick of the excellent driver is to apply phase 5 as phase 4 is finishing so accounting for the delay between throttle and engine (even more difficult on the rotary valves of yonder year).
Hopefully that all makes sense, I open the floor to questions.....
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