Vinod2070
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What is your own theory? When I say 'black,' you say, 'no, it is not black, it is non-white.' What is the meaning of 'more power for the same size, then?' It means the same energy can produce more power.
Actually no. Two stroke engines have less mileage per litre of fuel than four stroke. They waste more fuel as they try to combine two strokes of the Otto cycle (for those who have read such stuff) in one and this invariably results in some unburned fuel and so wastage of fuel and more pollution.
Obviously they can give more power than a four stroke engine because there are more power strokes per unit time (double of 4 strokes). Effectively they can generate about ~1.3 times more power for the same engine size.
But with less fuel efficiency!
I don't remember discussing anything with you more than 2-3 times. So your post is a bit surprising.