Quote:
Originally Posted by mikeyjd
... find 69-71% load yields optimal results in my 3.4L Tacoma while around 85% is better in my Dad's 96 Ford Aspire. ...
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I'm interested in how you make the determination of what %-load is optimal. On my UltraGauge the percentages are ephemeral since acceleration periods are usually brief, and are very sensitive to throttle position.
I haven't been able to find a BSFC chart for my engine (2.0 L Duratec in a 2005 Ford Focus), so I have been trying to hit 75%-85% as a generic best guess, and figuring that 65% to 75% is probably good at lower than 1300-1800 RPMs. Guesswork, as I said.
But backing off the pedal just the smallest tad drops me from, say 95% to 60%, so it's quite hard to hit my guesswork sweet spot.
(I also notice that, while accelerating, I need to progressively add bits pedal displacement to keep in my target %-load range.)
Sorry for the digression. My question is in the first sentence.