Smoother shifts at maximum torque rpm: why?

[Benquick]

Hi,
I've noticed that, at maximum torque rpm, shifting is a lot smoother: it is smoother operating the gear-stick (more fluid and with no resistence at all) and smoother the engine response (easier to rev match and silky, just like easing the gas to unload trasmission smoothing transition).
Before and after the max torque rpm, my gear stick seems often like stuck in the gate.
I have a small Ford Fiesta 1.4 diesel Tdci, with max torque at 2000 rpm.
Could you explain why this happens at max torque rpm?
Thanks

[kamesama980]

Lots of possibilities, nothing definite. several things are tradeoffs and that's the balance point I'm guessing. along with a bit of timing thrown in for good measure.

factors include:
-time it takes the main and layshafts to accelerate/decelerate.
-time to slip the synchros, engagement characteristics of the synchros.
-how long it takes the engine to decelerate.
-your foot and hand timing.

My Nissan's the same way, it only shifts smoothly and nicely if you time it perfectly and shift at just the right time and rpm. I've gotten so good at shifting that PITA that I can shift the Firebird (which is MUCH more forgiving) as smooth and fast as my wife's automatic.

[tankinbeans]

While not the same in the least, the DCT in my Escape is completely at home at high revs and shifts like butter when beaning it. However, when poodling around town she feels like a wet blanket and gets very confused as to which gear she needs to be in at any given moment. Perhaps with the extra momentum of the clutch disk the clutch is less grabby?

[watkins]

Guys, stop over complicating it.

Its clearly because race car.