I did not mean increasing power literally but efficiency (power may be bonus).little bit of extra juice one can extract from given engine at the cost of additional tuning.
Better burning of fuel in a given cycle, better use of energy available from resources.
Many a times just removing the filter itself make an engine rev better ,which means restrictions a filter provides is not in engine's interest.I am not ironing out the compression aspects .
What I have observed is manufacture has to cut a profitable margin between "form vs performance" factor where most of the time performance remains undermined.
Manufactures claim a high fuel efficiency inside a very very narrow band of specification which apparently is almost impossible to achieve in day to day commute nevertheless they are claimed for business prospective .
Unfortunately we have learnt to live with that kind of atmosphere relying on those narrow set of rules.
Regarding the use of throttle to control fuel flow inside the carb, you are correct upto a point but consider this - a carburettor has jets inside it (small pipe like things) that direct the flow of petrol from the fuel tank to the carb depending upon how much the throttle is twisted. To go with a free flow air filter, these jets are upsized which essentially means that bigger diameter jets are fitted. Now, in a bigger diameter jet, the amount of petrol that would be transmitted would obviously be more that that in a smaller diameter jet, even though the throttle opening is the same in both cases.
still not clear...NOOB here!!
If one has to cover 100 meters of distance needs x kilojoules of power.
the same should be constant if everything remains same.
in that case a more efficient engine with a carb having bigger jet or whatever is used, due to better efficiency we will have a gain which would definitely be on fuel side-Am i wrong ?
Bigger dia and more petrol burnt shouldn't be wasted here that is where ai meant throttle control.
Sucking in more Air means I have no intentions to say fill the cylinder with as much air as possible (we are not working with air compressor here) but what i mean is give it so much that no fuel remains un-burnt without any trace of doubt.
Agreed , manufacturer tune it optimally for for the stock filter they provide (for the narrow band)
but can we vouch on those filters being performing linear with kind of throttle we give ?
I have noticed the stock bike spit smoke at higher rpm's and had seen same bike with additional tweaking dint spew smoke at all when rev hard (at least not visibly) and sounded smoother.