RNDDUDE
Veteran Member
First off let me say that I am a big proponent of clean air and low-emission vehicles. This is NOT an attempt to circumvent any emissions equipment.This is more about trying to mine the forum expertice on the effects of emission control strategies and their impact on fuel mileage.
So I was wondering...if you were to take a CR engined car, and could remove all post-combustion after-treatments...EGR, DPF, cats, resonators, mufflers, etc....and could tune the ECU to do no regens and be tuned for economy, what sort of gains theoretically could be realized? Or would a PD engine offer better potential? I am thinking that other than the DPF and it's required fuel-rich regens, there probably aren't a lot of appreciable gains to be had. Your thoughts are encouraged......
So I was wondering...if you were to take a CR engined car, and could remove all post-combustion after-treatments...EGR, DPF, cats, resonators, mufflers, etc....and could tune the ECU to do no regens and be tuned for economy, what sort of gains theoretically could be realized? Or would a PD engine offer better potential? I am thinking that other than the DPF and it's required fuel-rich regens, there probably aren't a lot of appreciable gains to be had. Your thoughts are encouraged......