"A stock Civic 2.0S DOHC i-VTEC 5AT delivers approximately 126ps at the wheels when measured on a Dynojet. In absolute terms, this result is extremely impressive indeed. From the paper spec of 155ps max power, 126ps at the wheels works out to over 81% which means that the new K20Z engine-5AT gearbox combo incurs less than 20% - only 19% power loss. This is even better than what the R18A managed to deliver and in comparison is not that much worse than what a manual gearbox will deliver ! So the days of power-robbing automatic gearboxes now seem to be dissapearing with the latest generations of Honda automatic gearboxes. Again, with more of the engine power that gets transfered to the front wheels, it means better performance from the car, subjected to other factors like the car's kerb weight and gear ratios of course. So the most significant thing about this result is that while on paper we get an engine with the same max power, in practise, and that's where it counts, its as if the engine is a more powerful one !"

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woooo kuntakinte, are you saying that on paper if a car is deemed to have 150ps then it will sure churn out less on road???
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I believe this is due to the explanation of power loss....for newbie, is this from the gears and all??? or as per physics, 100%power transfer is impossible hehehehe
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Kunta,

For older model, are the power loss close to 50%???

bro sharelin

sorry, nearly overlooked your posting.

i think if u read the article in full, u will really appreciate the author's fascination with the efficiency of the new 2.0 engine.