Originally Posted by
JayL
John: ok so say at zero timing it does 20,000rpm and max timing it does 27,000rpm, you are saying it takes longer to get to 20,000 under max timing OR it takes longer to get to 27,000?
Sort of both. The plot line (rpm Vs time) crosses for zero timed and max timed motors. For my 21.5 TPS Motor (same motor dynoed at at different timing), initially from a dead stop the zero timed motor accelerates faster than the max timed motor. Then the lines cross over at ~0.4 seconds and from that point on the max timed motor accelerates faster. The max timed motor does get to the max RPM of the of the zero timed motor (10.5K RPM @ 5V) about 1/2 second faster than the zero timed motor does, but still takes another 2 seconds to get to its max RPM (15K RPM @5V).