Originally Posted by Rick
high cylinder pressures. Either extra capacity or extra boost are the only ways to significantly make a difference.
Or nitrous of course, thats the single best torque adder going.
But basically the crux of it is whatever you do you need to get it to consume more air PER CYCLE, ie revving it more might make you more power by having cycles occur more often but it wont actually increase torque (in fact as revs increase its harder to maintain torque generally)