I read somewhere on this site that keeping exhaust temperature below 600 degrees F will result in better fuel mileage.  One way to accomplish this would be to set up a water/methanol injection system that activates above 600F and deactivates below 600F.  The nozzle would have to be quite small to avoid extinguishing the combustion fire.  An improvement would be to have a two stage system with a second, slightly larger nozzle that activates at about 700F.  I believe Banks Power offers a new water injection system that has the ability to be temperature activated.  The temperature trigger points I'm suggesting are, of course, subject to change.  A wide array of nozzle aperatures are available.

 

Does anyone have any experience with using water injection to improve fuel mileage?  What I am looking for is real world experience in using water/methanol or water/ethanol injection in a diesel engine.  Opinions may be useful if they are supported by scientific knowledge.  If you want to express your opinion without any experience, be ready to back it up with physics, chemistry and math.  I'm sure there are a lot guys out there in the 80,000 pound club that have been using water injection for years.  Please help us all out with your vast knowledge and experience.

Edited June 29, 20159 yr by CoyoteKiller

Just sent a private message to WShupe on Cummins Forum.  We'll see what he has to say.

Have exchanged a few private messages with WShupe on Cummins Forum.  It sounds like his main interest is making maximum power for any given setup.  Not a bad endeavor in the world of diesel competition, and I understand he is quite good at what he does.

For on-road use in California, I have to be willing to make some compromise for smoke control.  Will probably go with the F1 AF Mach injectors.