Why Ducati isn't there yet | Motor Sport Magazine
"...
The problem is poor mid-corner turning during the transition from off-throttle to on-throttle, which is less of an issue at fast, flowing tracks like Mugello.
Ducati has worked on the chassis to fix this, reducing their disadvantage step by step, but it now realises that the final fix must come from the Desmosedici’s engine...
...here comes the Ducati. The rider shuts the throttle, carves through the corner and reopens the throttle. There’s a millisecond of silence, then a cough, a pop and a bang and the bike is gone, in a maelstrom of revs and racket.
That moment’s dead spot is the problem. The Ducati works this way because the desmodromic V4 is the most powerful bike on the grid, which is a good thing, except at very low revs, when the engine actually makes too much power. Ducati Corse engineers try to calm down this excess with electronics, specifically the anti-jerk programme, because MotoGP’s control traction-control software isn’t clever enough to do the job.
Anti-jerk makes the Ducati engine controllable when the rider first touches the throttle, but the dead spot takes away the all-important connection between rider, rear tyre and racetrack. For several milliseconds the rider is flying without wings, so he can’t turn the bike, which compromises his mid-corner speed and corner-exit speed, costing him a vital few hundredths of a second.
“This doesn’t help us,” admits Ducati Corse general manager Gigi Dall’Igna. “It is something we are trying to reduce.”
The factory squad’s team manager Davide Tardozzi goes into more detail: “This is one of the main issues we are working on,” he says.
“Absolutely it affects the turning – that’s why we are focused on this problem. Our engine has more power and torque than the other bikes across the rev range. We think this affects the frame a lot. When the riders want to use the first touch of throttle they can’t, because the engine makes too much power, even at the bottom. We need to work on this,
but the engines are sealed, so it’s something we need to do, but we can’t do it this year.”