Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Buddy just got a Dyno that measures BSFC!

Deezler · 04-15-2009, 08:24 AM

I did calculations something like this for my engines BSFC map here:
http://ecomodder.com/forum/showthrea...t-1466-13.html

Also a post at the bottom of page 12.

I was analyzing the effect of Cd reductions and a gearing swap on expected fuel economy during 5th gear cruising. (my commute is all highway).

But your query regarding where to shift gears based upon integrated fuel consumption is very interesting. It would be much more difficult to analyze as you'd need the hard data from the BSFC map. In my case I simply recreated the plotted lines and made assumptions in between....

Maybe theres a matlab script that can take scanned data and convert to real data for a contour plot.

04-15-2009, 08:24 AM	#17 (permalink)
Deezler Master EcoModder Join Date: Apr 2008 Location: Michigan Posts: 261 Bio Deezler (sold) - '03 Volkswagen Jetta GLS TDI 90 day: 50.78 mpg (US) The Beast. - '03 GMC Sierra 2500HD SLT 90 day: 12.86 mpg (US) Thanks: 0 Thanked 36 Times in 22 Posts	I did calculations something like this for my engines BSFC map here: http://ecomodder.com/forum/showthrea...t-1466-13.html Also a post at the bottom of page 12. I was analyzing the effect of Cd reductions and a gearing swap on expected fuel economy during 5th gear cruising. (my commute is all highway). But your query regarding where to shift gears based upon integrated fuel consumption is very interesting. It would be much more difficult to analyze as you'd need the hard data from the BSFC map. In my case I simply recreated the plotted lines and made assumptions in between.... Maybe theres a matlab script that can take scanned data and convert to real data for a contour plot.