Quote:
Originally Posted by California98Civic
You are looking for the "sweet spot" on an island graph much like this one, with different values specific to your car. The pulse is counter intuitive because you are not trying to drive slowly for good instant MPG numbers. Instead you are quickly accelerating in order to achieve engine load that puts you in the sweet spot of the BSFC map.
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This definitely helps. The island graph appears to have the engine's torque graphed at the top whereas the other graph lines appear as the engine's efficiency. I can't relate to the numbers associated with the plotted lines. I would love to make this graph but I doubt I have the necessary parameters to do it without having to calculate (with rounding errors) some of the needed parms.
Based on the fact their graph is a diesel engine, and diesels' peak horsepower is made very low in rpm, I expect that the 'sweet spot' in the example is at the engine's peak horsepower since, at this point, the engine is already at its peak torque. I suspect that the sweet spot of my engine would be WOT at 5100 rpm (282.39 whp 290.82 wtq) where peak hp=286@5400 and pk tq=302@4400.
Applying this, should make for some really interesting Pulses, even terrifying on a rainy day! If all of this works I'm going to program a micro to take care of all of these tasks so I can make sure the car is pointed in the right direction during the jump to light speed. The wife isn't going to want to ride with me anymore, take that as you may.
