Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - ---Backpressure in exhaust; good for city bad for highway!---

basslover911 · 10-20-2008, 01:59 AM

What i have been thinking;

Backpressure is good because it increases torque, so that is good for city driving where you need to constantly accelerate and decelerate.

But what about for constant cruising? When you dont need that torque... Wouldn't less backpressure be the best since air would flow out much better?

10-20-2008, 01:59 AM	#1 (permalink)
basslover911 Master EcoModder Join Date: Sep 2008 Location: Fort Worth, Texas Posts: 356 Silver Turtle - '02 Ford Focus Zx3 90 day: 38.83 mpg (US) Thanks: 4 Thanked 2 Times in 2 Posts	---Backpressure in exhaust; good for city bad for highway!--- What i have been thinking; Backpressure is good because it increases torque, so that is good for city driving where you need to constantly accelerate and decelerate. But what about for constant cruising? When you dont need that torque... Wouldn't less backpressure be the best since air would flow out much better?