Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Accelrate tech-1/4 throttle vs 3/4 = same result

PaleMelanesian · 05-20-2010, 09:57 AM

Use about 3/4 throttle in 5th gear. If it's too low at 30, you might start in 4th and shift somewhere along the way.

With the rpm that low, you're not accelerating like crazy. What you're doing is opening the throttle valve so the engine can breathe its best.

Autospeed - BSFC article

The Scangauge will be correct, up to the point where the ECU goes into Open Loop. If you press the gas pedal too much, it ignores the exhaust oxygen sensor and just dumps extra fuel in to avoid a lean mix. The Scangauge has no way of knowing how much extra fuel, since it's not reported to the OBD system. As long as you avoid full-throttle open loop, it'll be accurate.

05-20-2010, 09:57 AM	#6 (permalink)
PaleMelanesian Hypermiler Join Date: Dec 2007 Location: Texas Posts: 2,321 PaleCivic (retired) - '96 Honda Civic DX Sedan 90 day: 69.2 mpg (US) PaleFit - '09 Honda Fit Sport Team Honda Wagons 90 day: 44.06 mpg (US) Thanks: 611 Thanked 433 Times in 283 Posts	Use about 3/4 throttle in 5th gear. If it's too low at 30, you might start in 4th and shift somewhere along the way. With the rpm that low, you're not accelerating like crazy. What you're doing is opening the throttle valve so the engine can breathe its best. Autospeed - BSFC article The Scangauge will be correct, up to the point where the ECU goes into Open Loop. If you press the gas pedal too much, it ignores the exhaust oxygen sensor and just dumps extra fuel in to avoid a lean mix. The Scangauge has no way of knowing how much extra fuel, since it's not reported to the OBD system. As long as you avoid full-throttle open loop, it'll be accurate. __________________ 11-mile commute: 100 mpg - - - Tank: 90.2 mpg / 1191 miles Last edited by PaleMelanesian; 05-21-2010 at 08:52 AM..