Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - What is Engine Load %

redpoint5 · 10-10-2011, 01:20 AM

I have been aiming for 80% engine load during acceleration for no reason other than I heard engines are generally most efficient (most unit power per unit fuel) at 80% of full capacity. I don't know if 80% engine load equates to 80% capacity, or the basis of the 80% claim in general. Any info on this appreciated.

Thank you Old Mech for the detailed explanation of manifold vacuum and MAP.

FYI, my UG shows something like 25% Engine Load at idle, and falls several points below 100% at WOT.

10-10-2011, 01:20 AM	#6 (permalink)
redpoint5 Human Environmentalist Join Date: Aug 2010 Location: Oregon Posts: 12,895 Acura TSX - '06 Acura TSX 90 day: 24.19 mpg (US) Lafawnda - CBR600 - '01 Honda CBR600 F4i 90 day: 47.32 mpg (US) Big Yeller - Dodge/Cummins - '98 Dodge Ram 2500 base 90 day: 21.82 mpg (US) Chevy ZR-2 - '03 Chevrolet S10 ZR2 90 day: 17.14 mpg (US) Model Y - '24 Tesla Y LR AWD Pacifica Hybrid - '21 Chrysler Pacifica Hybrid 90 day: 38.47 mpg (US) Thanks: 4,346 Thanked 4,501 Times in 3,462 Posts	I have been aiming for 80% engine load during acceleration for no reason other than I heard engines are generally most efficient (most unit power per unit fuel) at 80% of full capacity. I don't know if 80% engine load equates to 80% capacity, or the basis of the 80% claim in general. Any info on this appreciated. Thank you Old Mech for the detailed explanation of manifold vacuum and MAP. FYI, my UG shows something like 25% Engine Load at idle, and falls several points below 100% at WOT. __________________ Gas and Electric Vehicle Cost of Ownership Calculator Give me absolute safety, or give me death! Last edited by redpoint5; 10-11-2011 at 02:11 PM..