Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Toying with idea of taller Metro 5th gear (to go with the already taller final drive)

3-Wheeler · 11-22-2012, 11:42 AM

Darin,

I was reading the earlier comments in this thread and got the part where you discussing what gears to use to achieve about 1200 rpm at 55 mph, if I recall correctly.

So I used one of the ScanGauge channels to show rpm, and in the Insight this turns out to be 1200 rpm at 35 mph.

Now in the summer, this creates a very easy load for the engine, but in winter driving it is close to the bottom rpm I can run without the engine "throbbing" from the 3 cylinder engine pulses.

I guess I am wondering out loud if you could actually drive the car with a wind load at 55 mph and still maintain this engine rpm?

Seems pretty low to me.

Jim.

11-22-2012, 11:42 AM	#101 (permalink)
3-Wheeler Master EcoModder Join Date: Dec 2008 Location: Southern WI Posts: 829 AlienMobile - '00 Honda Insight Team Honda 90 day: 80.05 mpg (US) Thanks: 101 Thanked 563 Times in 191 Posts	Darin, I was reading the earlier comments in this thread and got the part where you discussing what gears to use to achieve about 1200 rpm at 55 mph, if I recall correctly. So I used one of the ScanGauge channels to show rpm, and in the Insight this turns out to be 1200 rpm at 35 mph. Now in the summer, this creates a very easy load for the engine, but in winter driving it is close to the bottom rpm I can run without the engine "throbbing" from the 3 cylinder engine pulses. I guess I am wondering out loud if you could actually drive the car with a wind load at 55 mph and still maintain this engine rpm? Seems pretty low to me. Jim. __________________ Under-Belly Panels: http://ecomodder.com/forum/showthrea...els-10638.html Tail Extension: http://ecomodder.com/forum/showthrea...ect-13533.html