Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Water cooled exhaust manifold = 20% fuel economy gain

LeanBurn · 09-24-2019, 01:01 PM

My Si has the exhaust manifold integrated into the block. I can get 48mpgUK (40 mpg US) pretty regular in the summer.

09-24-2019, 01:01 PM	#18 (permalink)
LeanBurn Got MPG? Join Date: Sep 2010 Location: Southern Alberta, Canada Posts: 330 The Car - '09 Toyota Corolla CE Enhanced Thanks: 13 Thanked 43 Times in 38 Posts	My Si has the exhaust manifold integrated into the block. I can get 48mpgUK (40 mpg US) pretty regular in the summer. __________________ 2013 Honda Civic Si - 2.4L OEM front to back belly pan from the factory.