Quote:
Originally Posted by Fourdoor
Actually, peak cylinder pressure is greatest at peak torque, not at peak HP.... that is why you ramp down the timming map as the car approaches peak torque and then ramp it back up beyond peak torque.
Peak torque = most powerful indevidual explosions in cylinder
Peak power = more explosions per second in the cylinder
Keith
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Hmm, that's contrary to what tuners say, but it's more likely that I misinterpreted the explanation or that I am just not remembering it properly. Whatever it is called, there is an event around 6k that causes us to need to fatten it up just a little. I've also witnessed how 10 straight Evos all spit out a puff of black smoke right at 6k, but it wasn't evident in the hp/tq curves, nor the AFR or boost curves. Whatever it is that causes that is what I'm referring. I had been told it was peak cylinder pressure, but maybe it's something else.
