| analyzed the reasons for increased power with larger IC's but I believe it is a result of several factors. Better transfer of heat means a cooler, hence denser mixture to the cylinders.
Less pressure drop.
Due to the cooler charge, more boost can be used before detonation occurs.
Cooler charge allows more timing before detonation occurs. So the optimal design has the least pressure drop with the best heat exchange. These are mutually exclusive to a point so a compromise has to be reached. Additionally I think that the mass or the air being processed matters too so does that mean that efficiency drops as pressure increases? The longer the charge is in the IC the more time the charge has to give up heat. The better the exterior of the IC is cooled the more heat it can accept. The more thermal mass the IC has the more heat it can accept but the longer it would take to give up the heat as well.
KKROFFTNow occurs everywhere, simultaneously. But it doesn't have to be experienced the moment it happens. Every now that ever was is still exactly when it was, when it was now.
Then, in terms of perception, is nothing more than all the nows that are no longer now. Thus, the difference between now and then is when. --The Waystoppers Users' Manual 
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