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Message: <blockquote data-quote="speedchaser" data-source="post: 1499491" data-attributes="member: 5171">Car ECUs are very advanced nowadays that it could implement active variable ignition to any pre-determined loads and TPS.What Professore tried to explain is true but he got it out from his system in a jumble up way though. :)We have to acknowledge the fact that 'generally' (there is a counter argument to that on VEs, MBTs and such, but I'm not going into it now) the more ignition timing we run, the more torque we get and consumption will go lower because of better combustion.In an active ignition system, even at cruising, the ECU will advance the timing as much as it can until the pre-knocking stage based on the common variables of TPS, O2, load or air-flow, temp, knock sensors, etc. The pre-knocking stage theoretically produce the most torque. (It's a fact in my car though.) Professore's Protech can't do this yet! hehehe...When the car is under load as in flooring the throttle, engine load increases and timing will have to be retarded to prevent knock (pre-detonation).Take a look at the link below. It's a good article on active ignition.http://www.ecutek.com/tuning/ignition/</blockquote>

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