View Single Post
Old 01-05-2011, 03:36 PM   #13 (permalink)
t vago
MPGuino Supporter
 
t vago's Avatar
 
Join Date: Oct 2010
Location: Hungary
Posts: 1,808

iNXS - '10 Opel Zafira 111 Anniversary

Suzi - '02 Suzuki Swift GL
Thanks: 831
Thanked 709 Times in 457 Posts
Quote:
Originally Posted by mnmarcus View Post
Thanks t vago,
Generally, could this additional be off set by the increased milage? In your opinion are the overall emissions worse for an aftermarket lean burn car than a regular?
Yer welcome.

If you're looking at a point where you recoup the expense involved in converting a cat system to efficiently convert oxides of nitrogen, I'd say that's simply not possible.

From a technical standpoint, you'd need NOx sensors, some sort of NOx-storing catalytic converter, and some way to automatically enrich the fuel-air mix to transform all of that stored NOx back into harmless emissions.

You're going to have to balance the increase in fuel economy you're seeing, with the fact that you're also emitting higher NOx emissions. You can offset that by using EGR, but be prepared to suffer a performance hit in the process.
  Reply With Quote