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Message: [QUOTE="Hotrodtractor, post: 319394, member: 25"] This is why fuel burn rate and combustion chamber efficiency is so critical. Anything that can be done to increase the burn rate, improve combustion efficiency and improve turbulent mixing of the cylinders can allow these motors to be turned harder and turned faster. The more efficent the burn (well atomized, highly mixed, fine droplets) the faster the burn, the faster the burn the more easier it is to create and maintain cylinder pressure at higher RPMs thus giving you more torque in the higher RPMs and higher power as a result. This is also why at lower RPMs (say cruise and mid throttle positions) it is best to keep the ICP in the mid range and lengthen the PW out a bit - the decrease in combustion efficiency actually improves performance by lowering the peak cylinder pressures and prolonging the burn so the cylinder pressures are acting on the pistons for a longer period of time. Its all about the burn rate and how to control it. [/QUOTE]

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