can running LP reduce engine life? I see there are a few of you on here that use the powershot 2000. Is the performance increase worth the money?

i'd be running it on a cc/lwb 3/4hd w/ a stock '03 duramax (for the moment at least :hihi: ) and doing ALOT of towing and driving 500-600 mile round-trips.
-craq

There are alot of variables here. I believe that lp done properly is the safest added power there is. It burns slower than diesel, so you don't have the peak cylinder pressures that you would have by overfueling with diesel. However, if you are making way more power than the engine is designed to do, it certainly will shorten its lifespan, but extra diesel fuel will too.

would the transmission need to modified in order to compensate for the added power?

The damaging thing for the alli is shifting under power. If you are conservative with it, and don't pour the power to it until you get into your final gear, then it will last a long time. If you take off from a stop and rip through the gears, it won't last any time without major mods.

A suncoast 3 should hold right Marcdeluca?

Do you have a shift kit? The converter should be good, but it is the line pressure and shift programming that needs the improvement. In the stock setup, the engine defuels during shifts to take load off the trans. When propane is on, the engine still makes power during the shift.

I'm interested in a Lp gas setup but I don't know where to get the gas.I havent generally seen it around!! Where is it?

I do indeed have a shift kit installed as well.

The cheapest lp is had by having a storage tank at home. This way, you can get bulk pricing, which is significantly lower than carrying the tank somewhere to get filled. However, most folks using lp on diesels don't use enough to ever justify the cost of setting up to do this. The cheapest fuel is usually at propane companies, like Ferrellgas, Amerigas, people that only sell propane. Resellers mark it up alot, like gas stations, U-haul, etc. Some truck stops sell it, but I don't know if they will fill small tanks like BBQ or not. They mainly sell it for LP powered reefers. Look in the yellow pages under 'gas' or 'propane' to find out who has it. Then call them for the price per gallon. It will probably vary widely from place to place.

The damaging thing for the alli is shifting under power. If you are conservative with it, and don't pour the power to it until you get into your final gear, then it will last a long time. If you take off from a stop and rip through the gears, it won't last any time without major mods.
So you have to constantly adjust the fuel valve when stopping and starting? :confused:

I just soft pedal it through the gears, only giving it heavy throttle when it isn't shifting. I could switch off the fuel, but haven't bothered to do so. I need to come up with a way to turn the lp off during shifts.

""So you have to constantly adjust the fuel valve when stopping and starting? ""

No. A variable system, ;) will adjust the flow amount based on the amount of boost. So you just drive and forget it. It is a very smooth onset of power. This method of delivering propane is also very easy on the drive train as it is not all or nothing or all at once. Most of our customers have stock transmissions with the rest having mild to wild trans modifications, due to the other power modifications they have.


Propane is readily available at many places. Prices will vary though, highest being at an RV or say U Haul as previously mentioned.. Most Flying J's and other stations also carry it now. Just pull up and have them fill your permanently mounted tank. I pay locally around 14.00 for an 8 gallon tank fill up. In South Carolina at an Ace Hardware, I paid $6.25 for 5 gallons.:cool2:

Marc,

We include a relay for our semi truck customers so that when the Jake Brake is applied, power to the propane system is interrupted. This type of solution or variance of it may work for you.

Powershotone, how long will the 8 gallon tank run on a stock truck with the ps2000 tuned for mileage?
It also seems that the mileage increases are better while towing than while empty...has that been your experience?

An 8 gallon tank should last between 1000-1200 miles of "constant" use, meaning it's on to some degree anytime you are over 5psi. You will also get extended range from your diesel tank, of on average 80-100 miles.

Mileage does seem to be better towing. One possibility, the truck is making the power much earlier and with less throttle, so what used to be a stand on it hill, is now a half or 3/4 throttle run.
Also, probably a lot less hotrodding going on with a trailer behind you.:lol:

powershotone, what is you email address? I was in contact with you a few months ago and I lost it.

A variable system will adjust the flow amount based on the amount of boost. So you just drive and forget it. It is a very smooth onset of power. This method of delivering propane is also very easy on the drive train as it is not all or nothing or all at once. Most of our customers have stock transmissions with the rest having mild to wild trans modifications, due to the other power modifications they have..
So the extra HP won't put too much stress on a stock tranny? I want this mod to be as efficient and reliable as possible. Is it best to use a tuner as well? (all I've ever driven were stock trucks).

stacking the propane and a programmer might be pushing the stock ally. Used in small proportions you might be ok, but that's an expensive gamble.

Is anybody here running just propane...no chips or programmers....on an otherwise stock truck?

Is anybody here running just propane...no chips or programmers....on an otherwise stock truck?

Mine is bone stock except for lp.

There are alot of variables here. I believe that lp done properly is the safest added power there is. It burns slower than diesel, so you don't have the peak cylinder pressures that you would have by overfueling with diesel. However, if you are making way more power than the engine is designed to do, it certainly will shorten its lifespan, but extra diesel fuel will too.
So if I was looking for more fuel efficiency, would there be a way to slow the metering of diesel as more 'pane is introduced into the system?

So if I was looking for more fuel efficiency, would there be a way to slow the metering of diesel as more 'pane is introduced into the system?

Yes, your right foot will do this automatically... :)

i think mine is broken. It doesn't do that at all?

As you add more and more lp, you will use less and less diesel to do the same power level. You can add lp to the point that it starts surging on the level, or pinging at increased load. Seems to be at around the 70% level. Unless the lp you are burning is below 2/3 the cost of #2, your cost/mile will go up.

Yes, your right foot will do this automatically... :)
:sleep: