The Ifidonlike Conjecture

Based on my discussions with ifidonlike, I think he's making one or both of the following claims, which I respectfully term the "Ifidonlike Conjecture".

First, note that we are talking about real-world engines, transmissions and cars. This means that they must be achievable with today's technology by competent engineers and consistent with laws of physics and principals of engineering.

The statements concern two engines given as black boxes, with only the following data to tell them apart:

Engine 1: Max power P1 @ R1 rpm.
Engine 2: Max power P2 @ R2 rpm.
P1 > P2 by any amount.

[STRONG CONJECTURE]
One can construct two transmissions, suitable for each individual engine, and install them on two cars that have all else equal (weight, aerodynamics etc), such that: Given any objective acceleration performance criterion (e.g. 0-60 time, 5-60 time, etc), car #1 will outperform car #2.

[WEAK CONJECTURE]
Let there be one given objective acceleration performance criterion. Then one can construct two transmissions, suitable for each individual engine, and install them on two cars that have all else equal, such that car #1 will outperform car #2.

Ifidonlike can further clarify whether he claims the stronger version to be true or just the weaker version.

Note that several other people on the board, when making statements such as "don't believe in peak hp figures as they don't necessarily translate into better performance," have been criticized by ifidonlike. It would seem to me that such a broad criticism means that ifidonlike does believe in the strong version of his conjecture. This would be remarkable indeed, if true.

I hold the opinion that even the weaker version is false. This being a real-world situation, and this conjecture ultimately could be reduced to non-falsifiable statements if one so wishes (e.g. "I want to build transmissions that don't slip away any power, how do you know this can't happen, how do you know the 2nd law of thermodynamics has to hold everywhere and every time?"), obviously we can't formally prove or disprove it. But it's quite easy to disprove it beyond reasonable doubt.

But before I present my arguments, maybe people will care to comment?

所有跟帖： 

• May I present you this? -ifidonlike- ♂ (141 bytes) () 09/18/2006 postreply 12:22:16

• I'm talking about your claims. Do you hold as truth the claim(s -Speculator- ♂ (35 bytes) () 09/18/2006 postreply 12:32:56

• Unfortunately to you, my friend. -ifidonlike- ♂ (1138 bytes) () 09/18/2006 postreply 12:47:57

• I put these two engines on the same F150 platform, but -US_CAR- ♂ (23 bytes) () 09/18/2006 postreply 12:58:26

• And I am sure you wanted to use same tranny for both -ifidonlike- ♂ (298 bytes) () 09/18/2006 postreply 13:05:34

• So, you still hanging on your "ideal" tranny? The best -US_CAR- ♂ (134 bytes) () 09/18/2006 postreply 13:17:32

• Whatever tranny you can find for yourself. -ifidonlike- ♂ (101 bytes) () 09/18/2006 postreply 13:25:19

• 回复：Unfortunately to you, my friend. -Speculator- ♂ (1211 bytes) () 09/18/2006 postreply 13:18:39

• 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

• 友情挑拨离间：各位看准了目标操家伙，给我上：-) -CarCrazier- ♂ (56 bytes) () 09/18/2006 postreply 12:26:31

• Hey, why don't you give your opinion first :) -Speculator- ♂ (0 bytes) () 09/18/2006 postreply 12:33:32

• 哈哈，别介意，就是个玩笑：-) -CarCrazier- ♂ (169 bytes) () 09/18/2006 postreply 12:38:43

• 回复：哈哈，别介意，就是个玩笑：-) -Speculator- ♂ (206 bytes) () 09/18/2006 postreply 13:02:05

• 400 ponies are too little -CarCrazier- ♂ (36 bytes) () 09/18/2006 postreply 13:07:09

• Here's a 480-ponny car that can beat almost any other -ifidonlike- ♂ (434 bytes) () 09/18/2006 postreply 13:22:03

• piece of cake -##^^##- ♂ (99 bytes) () 09/18/2006 postreply 14:24:27

• Haha, good luck trying to get ifidonlike to accept this as a pro -Speculator- ♂ (67 bytes) () 09/18/2006 postreply 14:50:37

• On the contrary, I will take the bait! -ifidonlike- ♂ (501 bytes) () 09/18/2006 postreply 15:38:03

• Disproof of the conjecture. -Speculator- ♂ (3382 bytes) () 09/18/2006 postreply 14:48:42

• Here's your problem. -ifidonlike- ♂ (1181 bytes) () 09/18/2006 postreply 15:17:34

• That's your problem, not mine. -Speculator- ♂ (810 bytes) () 09/18/2006 postreply 17:51:56

• 该用马力还是扭力达到最快的加速？ -TBz- ♂ (259 bytes) () 09/18/2006 postreply 17:16:01

• Of course 1st gear, but what's your point? -Speculator- ♂ (0 bytes) () 09/18/2006 postreply 17:46:36

• Very Good. 同样的问题，另一个问法 -TBz- ♂ (276 bytes) () 09/18/2006 postreply 17:54:22

• First, I object that you want to talk about "ideal" CVTs. -Speculator- ♂ (1710 bytes) () 09/18/2006 postreply 18:18:40

• 理想的CVT是... -TBz- ♂ (1402 bytes) () 09/19/2006 postreply 00:30:08

• OK, you admit this: 在起步的瞬间离合器打滑是不可避免的 -Speculator- ♂ (3096 bytes) () 09/19/2006 postreply 05:57:19

• OK, but.. -TBz- ♂ (743 bytes) () 09/19/2006 postreply 09:02:02

• Understood. -Speculator- ♂ (442 bytes) () 09/19/2006 postreply 09:16:41

• Partially agree -TBz- ♂ (641 bytes) () 09/19/2006 postreply 11:48:12

• Sorry, -Speculator- ♂ (465 bytes) () 09/19/2006 postreply 12:11:54

• Note that I didn't say: "现有汽车上使用的CVT，(根据你的贴子)在有 -Speculator- ♂ (822 bytes) () 09/19/2006 postreply 07:01:05

• 恕我打岔，我来帮Speculartor总结一下 -ifidonlike- ♂ (2897 bytes) () 09/19/2006 postreply 07:39:13

• Those are not my assumptions. -Speculator- ♂ (586 bytes) () 09/19/2006 postreply 08:47:59

• And why put words into my mouth? -Speculator- ♂ (351 bytes) () 09/19/2006 postreply 08:51:58