Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Under-drive pulley installation test drive

SlideWRX · 03-29-2014, 10:40 PM

I put an underdrive pulley on my Mustang (also 4.6l, but a 3 valve) and got 0.5 mpg, give or take. Noticed the available power change, but nothing big.

03-29-2014, 10:40 PM	#8 (permalink)
SlideWRX EcoModding Lurker Join Date: Jun 2009 Location: SE Michigan Posts: 66 Moostange - '07 Ford Mustang GT Last 3: 21.8 mpg (US) Thanks: 1 Thanked 6 Times in 6 Posts	I put an underdrive pulley on my Mustang (also 4.6l, but a 3 valve) and got 0.5 mpg, give or take. Noticed the available power change, but nothing big.