There's a guy in fairview Oregon selling a cheap kit on ebay, $195.00, I tried to talk to the guy and go see it but he won't let you. guess he's scared that you will see how easy it is and build your own. He won't say how much power increase you will get either. my guess is, it's pretty much a hoopty rig setup!

 

I ran a dump truck with a propane injection system on it for a while, and it would save me about 3-4 shifts going uphill with an old 13 speed. Had a similar truck without for comparison with the same company, and I'd say it's worth it. Keep in mind, a little is good, but to much of a good thing can ruin your day. Keep the injection mild, and you'll benefit, push it to hard, and you'll cost yourself huge dollars.

FYI, I do have a gas engine propane conversion kit for sale, if anyone wants a few parts. Running propane on a gas engine is not viable anymore, as the price in Canada is roughly the same as it is for regular gas, and without doing a full conversion and increasing compression, propane doesn't really perform all that well. My tanks are made to mount underneath, between the frame rails. Make me an offer, and we can talk about shipping, since I work for a trans-border crossing trucking company, I can arrange my price(discount) It's going to run me 150 bucks Canadian(roughly) to get the rest of the system removed properly. The engine is totally on gas now, as I purchased the truck that way, but the mixer and tanks and switch are still on the truck.

 

You can build one for one of these NA diesels for a lot cheaper than you can buy a kit. You don't need all the fancy stuff like most of these systems have.

My system uses a regulator that was used for a propane powered truck. The best one to use is the IMPCO Model J. This system runs off of vacuum created by the air intake. You then just need a switch in the cab a lock off hose and a tank. If you have a turbo all you need, if you want it, is a pressure switch.

Basically you run a line from the regulator to the intake. You cut the outlet at a 45 so that as the air flows into the intake thereis a vacuum created which opens up the regulator and allows fluid to flow. As soon as you slow down to where there isn't enough airflow to create vacuum it shuts down. There is also a switch in the cab so you can totally shut it down if you decide you want or need to.

 

i'l check into it, A few years ago I bought a rig that was propane powered, I still have the tanks, and I guess what you would call the carb, I'll have to see if I have any more of it than that, don't remember much about it, didn't think I would ever need it. rotory.1

 

Im not sure of the shut-down-when-going-slow idea. I want to be able to accelerate faster off the line, annd then get better mpg on the highway too. Is there anyway to have a dial or multiple switches for a variable flow setup?
You know, so you could do something like "good mpg" "fast acceleration" and "death injection"

Edit: Dont exactly follow the 45 angle thing. Do you mean put a 45 degree elbow in the intake so that it points witht the air stream to create a vacuum?

Also, on the pressure switch, do you mean increase of flow with increase of boost? I would be mounting the propane before the turbo, so boost wouldnt reall effect it unless I ran a pressure line from the turbo, similar to the waste gate pressure line, to the pressure valve on the propane, which I wouldnt do...

 

"a variable flow setup?" and " increase of flow with increase of boost?"

A Powershot is the only system that has both.

 

how about using a adjustable regulator? you could mount it in the cab on the floor where they used to mount the old style gas tank switch. then you could run the hose to a guage mounted on the dash and see your pressure and flow, like the regulator used on a welder that uses argon, I think you could instantly see how much flow does what,
and how much power increase you needed. rotory.1

 

I am seriously considering adding one of these systems to my truck, but would like to know all the pro's and con's before I commit....I found the following opinion regarding propane injection on another message board. According to this guy, I would run the risk of my engine blowing up....Can any of you comment on the below quote?




"This is from the Banks Power web-site. While it might be slanted, the points seem valid.

We've followed the interest in propane-injection systems for diesel engines, and tested several to see if they are a valid way of safely increasing horsepower. We uncovered a number of serious safety issues:

Propane injection is nothing more than a way to add more fuel to the diesel engine. Without additional airflow, that additional fuel delivery can produce excessive exhaust-gas temperatures that harm internal engine components.

When propane is injected into the intake tract, it actually displaces some air, further increasing the risk of excessive exhaust-gas temperatures.

Too much propane can cause detonation, which is very damaging to internal engine components.

Propane is commonly injected into the intake prior to the turbocharger. This means that propane is present in the pressurized intake air, introducing a volatile fuel in an air-stream that would not normally contain fuel of any sort. Turbo-diesel engines occasionally develop intake boost leaks, and when propane is present, a boost leak could result in the presence of propane in a heated under-hood environment. This is a great safety risk.

I don't think that I'd want propane injection. It seems to me that it would also be another cost of fuel, adding to the already high cost of diesel. Even if it saved 20 % on diesel it might cost more in $ than not burning it. Add to that the fact that modern diesels burn better than 90% of the fuel.......

Just my uneducated opinion. "

 

Here is the link to the message board where I found this opinion


http://www.campingworld.com/forums/i...d/13173032.cfm