Quote:
Originally Posted by Bill Verburg
That particular engine has a rev limit of 6700
here you can see where a shift at 6700 takes you, this trans is not optimized for the engine or for track use in general. it is a fuel economy trans, as such short shifting in 3,4,5 will take you to a better part of the torque curve, 1 & 2 shifts rpm drops are good and take you to a decent place on the torque curve
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Ok that explains part of it (the part that the redline is really not 7000rpm, but 6700rpm.. the graph i copied however said to shift at 6500rpm, which didnt make much sense to me.
Next, what do you mean by short shifting. is the 6700rpm the rev limit and also the "short shift" or do you mean to shift at an even lower RPM?
If so, that would not optimize acceleration thrust, as you can see from your graph, every single gear shift has maximum thrust before a shift up to the next gear. (even 4-5 and 5-6th, however, not as critical as the prior shifts)
mostly i want to understand the "blue power band " area highlighted. this is the max thrust force in each gear, but based on the gear spacing vs speed, certainly not the "powerband" for the car... that would be in the higher RPM ranges, all the way to whatever your redline is.
This is because at each shift at 6700rpm the thrust force is lower in the next gear, but you have to shift anyway, because its at its RPM limit.