Quote:
Originally Posted by slowbro
I just want to see the instantaneous mpg jump on my scangauge like the oem trip computer shows
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Aha! Well, you
won't see it on the ScanGauge, because it doesn't register lean burn operation. The SG calculates fuel consumption by monitoring
air consumption, and it assumes a stoichiometric (14.7:1) air:fuel ratio in its fuel use calculations. So when the Insight's engine transitions to lean burn at a constant load, the air consumption doesn't really change, so the SG won't report the jump in MPG. You have to rely on the Insight's factory gauges for MPG.
Quote:
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I'm pretty good at maintaining lean burn... What kind of instant mpg should I target while travelling at, say 55 mph? ... Is 80 mpg a reasonable goal?
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The key to good cruising fuel consumption is monitoring/maintaining lean burn (driving with load / target MPG driving). So if you're good at that, you can achieve whatever MPG you want by adjusting load (speed, usually).
When I target 100 MPG minimum on the instant display while cruising, I usually end up with 85-95 MPG for the trip, after factoring in lower MPG on inclines, unexpected stuff, town driving at either end, etc. I'd say choose a route that gives you the most lattitude to adjust your speed as needed without disrupting traffic.
Also, since 55 mph is getting close to the lean burn limits of the car, have you done any mods that will help? Pump up the tires, do a few aero mods: see
http://ecomodder.com/forum/showthrea...-km-18930.html