Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post

sarguy01 · 03-11-2014, 12:13 PM

You know, the whole 1,200 rpm comment in the cylinder thread made me wonder. How many gears would a car need with a usable rpm range of 600ish rpm?? I am assuming a 600 idle and 1,200 red line.

I think semi trucks have a little more range than that.

03-11-2014, 12:13 PM	#7 (permalink)
sarguy01 Master EcoModder Join Date: Jan 2010 Location: Virginia Beach Posts: 468 Mazda5 - '12 Mazda 5 90 day: 25.22 mpg (US) Big D - '11 Dodge Durango Crew 90 day: 18.75 mpg (US) Thanks: 86 Thanked 87 Times in 54 Posts	You know, the whole 1,200 rpm comment in the cylinder thread made me wonder. How many gears would a car need with a usable rpm range of 600ish rpm?? I am assuming a 600 idle and 1,200 red line. I think semi trucks have a little more range than that.