View Single Post
Old 02-12-2015, 07:46 PM   #25 (permalink)
EcoModding Apprentice
Join Date: Oct 2010
Location: Ivins UT
Posts: 212

the green machine :P - '97 Jeep Grand Cherokee ZJ
90 day: 20.92 mpg (US)

Thee s10 - '00 Chevy S10
90 day: 24.27 mpg (US)

Freedom - '05 Kawasaki Ninja 250EX
90 day: 75.55 mpg (US)
Thanks: 2
Thanked 21 Times in 19 Posts
Yes, I understand that it's just that I've heard auto manufacturers say that they can't go too lean because "The engine can't handle a instant detonation of the fuel at thoughs low a levels".

I was just using that as a base figure. I don't honestly believe that the a/f ratio will Chang one to one with the compression ratio, I was just stating that it can change with it. And quit substantially.(though I'm not 100% sure how much!!)

may I ask how inefficient running lean would make the catalytic converter??

I have my Roketa 150cc scooter running using the "vapor" system and I find it weird that to accelerate with it I have to close the intake(tell about half way, then it starts to drop in rpm's) and to idle it I have to open the intake.
  Reply With Quote