Quote:
Originally Posted by Lazarus
Yes it does have a lock up converter. I don't know about the 62% but the max torque happens about 3200 rpm and that seem to work well for the acceleration portion.
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I've drawn on the engine map to indicate how much power you want the engine to be producing relative to what it can do, and why.
Note that if you have a choice, via gearing, you want the engine rpms to be as close to 2300 as possible (assuming 4 valve/cylinder car). At any rpm, you want your engine to be loaded such that you are operating within the two bands I have drawn. I calculated the percentage of possible load on the engine as a percentage - stick around 65% and you should be fine. I'd guesstimate that would equate to 65% throttle, as the technique for actually mapping BMEP to throttle requires an accelerometer or dyno.
Note that 0 BMEP corresponds to a no load state on the engine, which is the same negative acceleration in gear as the equivalent neutral coast, which is just a bit above closed throttle.
100% BMEP corresponds to WOT.
Where 65% of the power generated by the engine is in terms of throttle, your guess is as good as mine, although at lower rpms there appears to be a drop off in BMEP near WOT.
I'd love it someone could actually measure this so that we could get a map of rpm versus TPS for 65% BMEP.
