I'd love to read the paper, especially if there's info in it that pertains specifically to the 6.9/7.3L IDI. Mine is N/A, not turbo, and I'm not as conserned about increased performance as I am keeping the carbon cleaned out. I burn my WVO mix in my front tank, but I don't have any extra valving or any addional heat for the fuel system (although I do hope to add a heater to the fuel filter this fall). I do a decent job of shutting down and starting up on the rear tank (D2), but since I'm using the stock fuel selection system, I am getting contamination from the front tank into the rear tank from the return lines, and I do occationally forget to make the switch so I end up having to start on my blend. With over 220K on the engine, I'm confident that it's got plenty of life left in it, but the rest of the truck is going down hill thanks largely to the winter salt here in Indiana, and the fantastic condition of our roads (makes me so glad to pay my taxes). Anyway, back on point. From what I've read so far, guys who burn WVO, or WVO blends really like the water injection for elliminating the carbon buildup in the engine. From the sounds of it, they are not using very much water, and probably not enough to make a significant differnece in the engine's performance, nor do I really care about an increase in HP or TQ. I'm burning my mix for around $1 a gal, so I'm not really concerned about fuel millage as much while I'm using it
Having said all that, like Mr. Fox from Co, I do occationally pull a 5,000 lb camper, and there are select times when a little extra performance would be nice. Mainly out on the highway/interstate. If the water injection works out, and I want to try something, I figure I could always add some Liquid Heet to the water before I head out with the camper. I've got 3.55 gears and with a camper behind me, I need to keep the rpm at 2K or above when I'm on the highway. Anything lower than 2K and I have to down shift. That means I'm running at least 65 in 4th gear before I can shift. I don't think the **** injection will help me get into 5th gear any easier in this case, but since it should help me get a more complete burn, and since I don't have a turbo, it may actually help. While it would be a neat little perk, it's not that important to me. We only camp 6 to 8 times a year, and the campgrounds are 2 hrs or less each way (30 min most of the time), and I'm burning a WVO/D2 mix at $1 a gal. So the only benifit I see out of it is keeping my RPMs down some. Back and forth to work, the truck rarely see's over 2300 rpm, so having to run her down the highway in 4th gear at 2500+ for extended periods does make me a little uncomfortable, but in the end I know she needs to be run at least a little hard every once in a while so who knows.
