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Old 05-18-2023, 11:16 AM   #14 (permalink)
aerohead
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HOT ROD's Gear Vendors experience

From: HOT ROD Magazine, December, 2008, pages 102-105, by Christopher Campbell.
* Their project truck was a 1967 Ford Ranchero GT.
* With C4, 3-speed automatic, pre-lockup trans.
* OEM, @ 65-mph = 13.0-mpg.
* With street-rod mods, 17.0-mpg @ 65-mph.
* Adding electronically-shifted 0.78:1 overdrive = average 19.5-mpg. As high as 20-mpg, once.
* Average 14.7% mpg improvement.
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