ive spent a bit of time trying to read here about propane injection...however dont seem to find the basics behind it...

is propane injected into the factory fuel system? or is it injected beforehand througha jet or nozzle of some sort??? is it like nitrous but just always On???

ive got the 26 gallon fuel tank and would love to see 400+miles per tank if possible while towing and this is why im intrigued by what i have read on the propane injection...

do you need the aftermarket chips to run propane or can you run it on a stock motor/electrics...

and of course...what can i expect to spend on a decent propane system???

anyone that can help to explain the basics...i woult be greatly appreciative

thanks
jason

It is injected as a gas pre-turbo.

There are a few good systems for our trucks. I'm sure someone will pipe up how they like theirs.

It is injected as a gas pre-turbo.

There are a few good systems for our trucks. I'm sure someone will pipe up how they like theirs.

SO THE mass airsensor or whatever it is that meters the incoming air and fuel will automatically compenasate whent he propane is injected???

also i would assume propane like most compressed gasses has a cooling affect when it enters the hot intake stream...in theory dropping intake charge temps???

You need to understand how a diesel works first.

There is no throttle on a diesel. Engine speed is controlled by injector pulse. There is never a significant vacuum in the intake tract. MAF is used for engine diagnostics and emissions control.

As the piston comes up, it compresses the air to about 18:1, which gets the air VERY hot. At the right time, fuel is sprayed directly into the combustion chamber, and the hot air ignites it. There is no fuel in the intake tract at all in a stock truck.

Now propane systems inject gaseous propane into the air based on engine load. Most propane systems look at engine boost and turn on the propane when the engine is making boost (under load). The propane/air ratio is so thin that it will not ignite during the compression stroke, the diesel fuel lights it. Since propane burns fast, and it's everywhere in the cylinder, it accelerates the combustion of the diesel fuel and allows it to burn more completely. It also uses up some of the air for it's own combustion, so it "richens" the combustion and blows a bit of black smoke itself. Diesels that are not overfueled get a bigger gain from propane than ones that are overfueled from big programs from what I've seen. There is only so much air, and propane displaces some of it.

It is normally fed in after the MAF, but I doubt it matters.

the propane is injected right after your air filter and before your turbo, anywhere in their is fine, it just comes out of a 1/4or3/8 hose and flows into the intake tube, no jet required, the whole system is contolled threw the regulator that uses your boost signal to variable flow rate of lp

i also run the 26 gallon tank and have seen 400 miles on a tank pulling but that is with a 100hp tune, you can run lp with out any tune but i have no exsperience with that, powershot 2000 has some dyno sheets about that, they showed almost 100hp increase

the power shot sells for 649 new last time i looked, and that is with out the tank
i seen this on another fourm for a used item

"I have a Powershot 2000 Propane injection system for sale. The unit is used and I am the second owner. I have not had the chance to install this kit and I am now selling my truck so I will not be needing it. The kit comes with everything to install the unit. Hoses, Power switches, Propane injection module. The kit does not come with a tank since it can not be shipped. I am asking $300 plus shipping OBO. I will take paypal for the unit. Here is a link to more about the unit. http://www.dieselperformanceproducts.com/home.html
shawn@sound-buys.com "


i have had mine for close to six months, and have driven about 20k with it so far, lets just say i do look for the lp stations when the tank is empty, it seams to make a great difference on mileage even with high hp tunes and the additional tq when pulling is a must, you will need a tranny upgrade if thinking of adding lp with a chip, as for the sise of the tank, bigger is ussally better, but then i get close to 600 miles on 9 gallons tank of lp(a forklift tank hid in the toolbox)

hope this helps








ive spent a bit of time trying to read here about propane injection...however dont seem to find the basics behind it...

is propane injected into the factory fuel system? or is it injected beforehand througha jet or nozzle of some sort??? is it like nitrous but just always On???

ive got the 26 gallon fuel tank and would love to see 400+miles per tank if possible while towing and this is why im intrigued by what i have read on the propane injection...

do you need the aftermarket chips to run propane or can you run it on a stock motor/electrics...

and of course...what can i expect to spend on a decent propane system???

anyone that can help to explain the basics...i woult be greatly appreciative

thanks
jason

I REALLY appreciate your guys helpfulness...

so if i understand this correctly propane is used to make additional power...but at the same time can increase your effiecency of fuel consumption...

so when your propane is activated you will in turn burn less diesel...burning both diesel & propane at the same time maybe burning a similar amount of fuel overall but because the propane displaces a bunch of diesel your diesel in turn will go that much farther...like i said i would love to get 400miles towing out of my 26 gallon tank and would enjoy the propane more than shelling out a ton of cash for a bigger gas tank...

now the LP liquid propane is this the same propane i assume as i go get filled for my barbeque??? cause we have many propane places around here so it seems like it would be a good mod for my situation

BTW...i know im new to this whole LP thing but am intrigued...to burn through 26 gallons of fuel at say the 100 or so horse rating...how big of a propane tank are we talking would be necessary to prevent running out of propane? should i be looking into something the size of a barbeque grills size tank or would i need much larger??? how many gallons of propane do the standard barbeque tanks hold?...i could set something up in the bed pretty easily as i dont use my truck for work...just for towing and commuting...so i could easily sacrafice some bedspace if necessary...

how many miles on average could i expect to see a barbecue size tank go...my round trips average 260miles to 1200 miles...i would want a propane tank hopefully big enough to take me to utah and back...and of course filling the diesel tank along the way...

any more advise and explanation is greatly appreciated

thanks again
jason

I am also very interested in propane. How will propane effect your engine? I know gas powered motors coverted to propane run exceptionally clean , is that the case when ran with diesel as well? How about the engine warranty? Any real dangers here on that front? On say level 2,or 3 on the attitudw will trans upgrades be mandatory?, and in that case should I wait untilk after 36,000 miles ? Thanks guys.:ro)

From my experience, propane is not a miracle fuel regarding mileage. You are merely substituting one fuel for another. I took my truck from 19 mpg on diesel only to 42 mpg running lp. But at that diesel mileage, I am getting only 21 mpg on lp. So, the price of the lp is the determining factor if you are concerned about operating cost per mile. If you want the extra power and extend your range and don't care about driving any cheaper, then it does both nicely. The lp needs to go in ahead of the turbo but after the MAF, otherwise the oil in the lp will foul the sensor. Using lots of lp keeps the oil looking like new, and the engine runs quieter. The extra torque is really noticable, and it seems so smooth and effortless. You need to decide how much you want to use and carry. I don't need my whole truck bed and I do alot of business trips, so I have a 100 gal lp tank. Even at 21 mpg on lp, I can get 2100 miles to a tank, and that gets me about 1300 to a tank of diesel. To put a tank under the bed, it will either need to be pretty small to go along the frame, or you could put a 30 - 35 gal tank where the spare is, if it is a double or triple manifolded tank. Otherwise, there are manifolded tanks that can go under a crossbed toolbox that hold up to 50 or 60 gal. Read some of the other threads in this section or search my previous posts for more info and some pics of my setup.

With a variable system, a 20 lb or 4.5 gallon propane tank will last between 400-600 miles of constant use.

sorry to change the subject here..but you guys running LP.. doesn't this qualify for a tax deduction for alternative fuel???

I've been reading all the threads in here and am seriously considering this upgrade just for fuel economy these days. I have some more research to do first, crunch some numbers.

now the LP liquid propane is this the same propane i assume as i go get filled for my barbeque??? cause we have many propane places around here so it seems like it would be a good mod for my situation

thanks again
jason

This is my ? also. I've never really thought about it before but is there different grades of propane? I just assume pane is pane. Cooking steaks on the grill, heating your home or fueling your pickup! If thats the case it's much easier than finding a good grade of diesel fuel.

BBQ is fine as long as you leave the grill at home.

Technically you must use a DOT approved tank. BBQ tanks aren't. Propane is propane. Get it from Hank Hill.

Get it from Hank Hill.

Thats priceless. lol Give ole hank a free plug.

i'm still learning about these systems too, but i thought i would chime in about what kind of tank you will need. someone was saying something about just putting in a bbq tank..... there is a distinction between a vapor tank and a liquid tank. with the ps2k system, you must flow vapor. this is either a special vapor tank that is more $$$, or running a liquid tank upright (bbq or forklift)which can still be risky. did i get this right?

A ASME tank is rated higher than DOT tanks, this is what I find out when searching for tanks. Confirmed this when I spoke to the man over at Manchester tanks.

When I was looking for a tank, I found a place that does alternative fuel conversions. They sold me a slighty used tank, with new fittings/valves for 100 bucks. Had a ton to choose from.

Tank has the ports for both, vapor and/or liquid draw.

A ASME tank is rated higher than DOT tanks, this is what I find out when searching for tanks. Confirmed this when I spoke to the man over at Manchester tanks.

When I was looking for a tank, I found a place that does alternative fuel conversions. They sold me a slighty used tank, with new fittings/valves for 100 bucks. Had a ton to choose from.

Tank has the ports for both, vapor and/or liquid draw.
What size tank did you get?