MSD propain injection mpg gains? - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 11 (permalink) Old 01-22-2011, 10:44 PM Thread Starter
biostroke1
 
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MSD propain injection mpg gains?

Ive just recently bought a used MSD propane injection kit for my 02 7.3 cc 4x4 longbed. The truck has a 4" lift running 285 75 16 tires. I was wondering if anyone else is still running propane and what kind of real world mpg gains could I expect? I drive 50/50 highway and city. I drive fairly conservative. The ony mods so far is a afe pro dry air filter and a sct programmer. I have not yet installed the propane injection. Thanks
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post #2 of 11 (permalink) Old 01-23-2011, 12:16 AM
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Re: MSD propain injection mpg gains?

I wouldn't do propane w/ PMR's like on the 02 motor.
call swamps and see what he has to say. He's a 7.3 god IMHO.

"New" 05 no payment, all original 305k and runs like a champ
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post #3 of 11 (permalink) Old 01-23-2011, 02:15 AM
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Re: MSD propain injection mpg gains?

I know a guy running the same setup on his 03 7.3L and he said his power and MPG's went up big time.
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post #4 of 11 (permalink) Old 01-25-2011, 11:43 AM
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Re: MSD propain injection mpg gains?

I have been using propane for about 300k. You will save a small amount on your fuel cost DEPENDING on the cost of the propane. I saw the biggest savings when pulling any large load and the least when running empty.
If someone with the proper equipment such as MSD were to do some R & D concerning MPG gains using propane I think that some noticable savings are possible. But due to propane's bad reputation there is no demand from the buying public to warrant a company to invest any funds in R & D

99.5 F-350 SRW 6 speed mods:PHP live tuned., MSD propane system, snow water injection,DDP stage 1 injectors,AFE stage II air intake,ITP boost regulater,3.5 turbo back exaust,FASS fuel system. Gulf Coast oil bypass filtration, ITP reg. return, HPX oil line , GTP 38r with 1.15,EBPV delete. 430,000 miles,Adrenaline HPOP
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post #5 of 11 (permalink) Old 01-25-2011, 04:01 PM Thread Starter
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Re: MSD propain injection mpg gains?

So it sounds like as long as propane doesnt go up w/ the rising coast of diesel there could be fair amount of savings.
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post #6 of 11 (permalink) Old 01-26-2011, 12:49 PM
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Re: MSD propain injection mpg gains?

go to page 8 here on the MPG- fuel economy discussion and look at the thread -new propane data. I think the money saved is minimal unless you can get propane substancially cheaper than what I see in my area.

This test that I performed was the only time that I put forth the effort to gather any data. In my opinion if you get a 20+ gallon propane tank,then the biggest advantage is increased distance between fill ups along with an increase in horsepower.

I really wish that someone with the proper equipment would do some extensive testing to see if there were any real savings to be had pertaining to propane injection into a modern diesel engine.

99.5 F-350 SRW 6 speed mods:PHP live tuned., MSD propane system, snow water injection,DDP stage 1 injectors,AFE stage II air intake,ITP boost regulater,3.5 turbo back exaust,FASS fuel system. Gulf Coast oil bypass filtration, ITP reg. return, HPX oil line , GTP 38r with 1.15,EBPV delete. 430,000 miles,Adrenaline HPOP
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post #7 of 11 (permalink) Old 02-01-2011, 12:13 AM
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Re: MSD propain injection mpg gains?

Look in to a company called Fire Em Up. They have been building LP Injection kits for over the road trucks for close to 10 years. I have installed a few on farm equipment and they love it. I did have one on my brothers old 7.3 he would see about a 4 mpg increase when using LP.

The key to making it work with out blowing anything up is to inject the correct amount. The trouble comes from getting to agressive with the LP or with the diesel timing, the LP speeds up the flame front.

I will be installing Fire em up's "Diesel Magnum" on our EX. sometime this year.

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1988 bronco ii 2.3 turbo motor on propane
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post #8 of 11 (permalink) Old 02-05-2011, 05:39 PM Thread Starter
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Re: MSD propain injection mpg gains?

The propane kit I have is made by MSD/ Superchips and is computer controlled so it wont overdue the amount of propane injected @ any given time. I live in Il and the kit is in Az @ my folks house so Im waiting for them to come back to Il for the summer and bring the kit w/ em. so as soon as it comes Ill install it and post all of my data as I get it.
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post #9 of 11 (permalink) Old 02-15-2011, 12:20 AM
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Re: MSD propain injection mpg gains?

before you claim any mpg gains, remember to factor in the cost of the propane.
best way with a combo like that is to look at $/Mi.

Dan
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post #10 of 11 (permalink) Old 02-20-2011, 08:49 PM Thread Starter
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Re: MSD propain injection mpg gains?

Once I install the kit Ill do some shopping before I fill up the tanks but yes, Ill be sure to factor all costs in.
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