Originally posted by wcoyote
That is why engines in cars usually use chain or belt driven cams. Gears have more drag.
I agreee with most of what you said, however this statement is wrong.... Automotive manufacturers use belt or chain driven camgears because of cost and cost alone.... look at the aftermarket, even the highest quality valvetrain chain drive for a Chevy 350 cost around $75-100... meanwhile a Pete Jackson geardrive is at least double or more..... maybe even triple.
You also failed to mention that gears have the potential to transmit much more power.....
However Automotive tech cannot really be used fr example in RC Tech.... it just doesn't work the same....
Someone else could say.... 99% of all automobiles ever manufactured gave been gear/shaft driven, so it must be an absolute better solution to transmit power to the ground in RC.....Now would the automobile>Rc analogy be correct for them too????