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

dcb · 08-08-2008, 11:42 AM

FWIW, I went from a 47 tooth rear sprocket to a 37 tooth (I have a 15 tooth front sprocket FYI). It is a significant reduction in rpm for a given vehicle speed.

Now my 4th gear is like what my 6th gear used to be. It took a little getting used to when taking off in first, and when selecting gears for a given situation, but I like it and am getting good mpg results with the setup. It's all instinctive now.

When cruising I am at a lower RPM with more throttle opening (more efficient generally), and if I need the acceleration to get up a hill or something, I can always downshift.

08-08-2008, 11:42 AM	#3 (permalink)
dcb needs more cowbell Join Date: Feb 2008 Location: ÿ Posts: 5,038 pimp mobile - '81 suzuki gs 250 t 90 day: 96.29 mpg (US) schnitzel - '01 Volkswagen Golf TDI 90 day: 53.56 mpg (US) Thanks: 158 Thanked 269 Times in 212 Posts	FWIW, I went from a 47 tooth rear sprocket to a 37 tooth (I have a 15 tooth front sprocket FYI). It is a significant reduction in rpm for a given vehicle speed. Now my 4th gear is like what my 6th gear used to be. It took a little getting used to when taking off in first, and when selecting gears for a given situation, but I like it and am getting good mpg results with the setup. It's all instinctive now. When cruising I am at a lower RPM with more throttle opening (more efficient generally), and if I need the acceleration to get up a hill or something, I can always downshift. __________________ WINDMILLS DO NOT WORK THAT WAY!!!