Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Project 100 (custom enclosed Honda C90 targets 100 mph vmax and 100 km/L FE)

Patrick · 08-31-2011, 05:44 PM

You could try a Trail 90 (CT90) engine with the dual-range gearbox. It's supposed to have a 1.89:1 ratio to the countershaft when in low range. Then you could gear up the final drive to 2X and achieve the 100 mph top speed while in high range (1:1 ratio). Supposedly these are shiftable "on the fly." You would have an 8-speed gearbox, in effect.

08-31-2011, 05:44 PM	#30 (permalink)
Patrick Master EcoModder Join Date: Apr 2008 Location: Northern Florida, USA Posts: 510 Hot Tamale - '10 Toyota Prius III Thanks: 27 Thanked 96 Times in 70 Posts	Idea for gearing. You could try a Trail 90 (CT90) engine with the dual-range gearbox. It's supposed to have a 1.89:1 ratio to the countershaft when in low range. Then you could gear up the final drive to 2X and achieve the 100 mph top speed while in high range (1:1 ratio). Supposedly these are shiftable "on the fly." You would have an 8-speed gearbox, in effect.