See, your example might show this, BUT max torque and max power can't be ever related to cc's directly. This is not possible in today's tuning world.

That's because engines are tuned for a purpose and towards a direction: either good low end torque (like Karizma) or good top end power (like R15).

Understand it like this: If you're developing a 150cc engine, you can choose between good low end torque for commuting and offroading... but your top end power will suffer most probably. A good example is 13.02 PS Impulse which has good torque but can't even go above 105 kmph properly or give a dashing 0-60 timing.

And if you choose a bigger top end, you'll lose somewhere in the low end or midrange. A good example is R15 which is 17 bhp @ 8500 rpm, but below 6000 rpm, its somewhat lethargic.

BOTH? And if you want both top end and low end torque to be boosted noticeably, simply increase the cc. A good example is P220 which is 21 bhp and stronger in midrange than 150cc bikes.


So, we have two major schools of tuning:

1. The low end torque: These engines won't rev very high but they pull loads easily due to more torque from lower rpm's, like Royal Enfields.

2. The top end focussed: They rev high and make a lot of power at high rpms, but their low end torque might suffer, like R15, R6, etc.


So, the bottom line is that, due to difference in tuning, you can't interrelate cc, max bhp and max torque directly. Its just not possible. For example, a particular 220cc engine may make 14 bhp or 17 bhp or 21 bhp or even 27 bhp near redline. Similarly, max torque figure may vary too.
Yes, if you increase the cc, it should increase power and torque for an engine, but how much exactly can't be told by engine size specs.