回复：Unfortunately to you, my friend.

All your argument is that you can use the appropriate trannies to pin engine rpm around the max-hp point. Therefore I see your bet and raise you, because if your argument were true, then you could apply it to any P1>P2, not just 244 vs 202. And indeed you made that generalization as well.

But the problem is that with any real tranny, during an acceleration run, there has to be a gradual process for engine rpm to start lower and go higher. This is where I insist on real trannies and laws of physics. No tranny will allow you to achieve the best acceleration run by revving to max-hp point and holding there while slipping something (clutch discs, belts, or viscous material) away. It's not a reliability issue but rather an efficiency issue. BMW M3 SMG's launch mode doesn't rev to max-hp rpm, not because the clutch cannot handle it (a driver on the manual car can do it once in a while), but because it is not optimal. Even more so for holding rpm constant and slipping further.

If you agree with this simple fact, that your initial plan of starting at max-hp rpm and holding it there is not the optimal way, then already your conjecture (even in the weaker form) is false.

所有跟帖： 

• The tranny even doesn't have to be magically efficient -ifidonlike- ♂ (242 bytes) () 09/18/2006 postreply 13:31:56

• difference betwen trannies, I meant. -ifidonlike- ♂ (0 bytes) () 09/18/2006 postreply 13:44:52