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Old 12-11-2007, 06:33 PM   #21 (permalink)
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featurecreepitis

I'm putting down a wishlist of features I'll include in version 1.1.

-US units - I can't count on people having either completely US units or metric units as a resource, since a lot of these figures will be straight out of google. So there will have to be options for each.

-parasitic loads included (e.g. alternator), maybe A/C (suggest others and likely power draw)

-transmission losses for autos

-constant velocity cruise in gear automatically calculated for comparison

-two valve per cylinder engine map (I believe that Variable Valve Timing and Lift (VVT&L) engines should be the same as a 4 valve/cylinder engine in terms BSFC(min) for a given rpm. Based on the graphs here.) Note that the vertical lines of BSFC from 2300 on are at identical rpms, and this is where we want our engine operating during the pulse.

-diesel engine map

-something saying that Engine Size is only useful for calculating idle fuel burn rate, so if you have a hybrid this should be zero. Or maybe just a check box for Hybrid/Engine Off Coast (versus idle).

-I'll include Synlube after effects have been independently verified and quantified.

-results in l/100km, mpg, km/l.

Let me know if I've forgotten anything.

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Last edited by newtonsfirstlaw; 12-12-2007 at 08:00 PM..
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Old 09-24-2008, 06:30 AM   #22 (permalink)
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Old 09-24-2008, 10:38 AM   #23 (permalink)
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The instructions page doens't seem to load correctly Drew. Also, welcome to the site.
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Old 10-20-2008, 03:06 PM   #24 (permalink)
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Yes this works
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Old 10-20-2008, 09:41 PM   #25 (permalink)
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I've fixed the instructions and am currently working an easier-to-use version for common American units - gallons, miles, and m.p.h.
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Old 11-04-2008, 03:32 PM   #26 (permalink)
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The hard part is maintaining that elusive 62% at different gears/throttle positions and speeds.

This is the one figure I am tracking on the ScangaugeII while pulsing. Dramatic results! Am achieving sustained fuel efficiency close enough to BSFC(min) to make friends seriously envious

If only we could get some Audible alarm that buzzes a LOW tone below ~57% and a HIGH tone above 67% engine load and I would not have to look at the Gauges at all while driving!

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