Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Vacuum engine to improve fuel efficiency? (after burner engine)

serialk11r · 04-20-2020, 10:32 AM

The answer is anything with a heat exchanger has low power density.

It's going to take a LOT of cooling air to cool down the exhaust stream.

04-20-2020, 10:32 AM	#4 (permalink)
serialk11r Master EcoModder Join Date: Jan 2012 Location: United States Posts: 1,756 spyder2 - '00 Toyota MR2 Spyder Thanks: 104 Thanked 407 Times in 312 Posts	The answer is anything with a heat exchanger has low power density. It's going to take a LOT of cooling air to cool down the exhaust stream.