propane injection - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 9 (permalink) Old 08-16-2009, 03:01 AM Thread Starter
 
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propane injection

anyone running propane threw a nitrious kit
or herd of anyone doing so
i have an extra kit and didnt want to have to buy the propane kit just thought i could buy a grill propane bottle and put on the nos kit
but what just should i run or is this just a very bad idea
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post #2 of 9 (permalink) Old 08-16-2009, 05:44 AM
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There is a thread on propane to improve mileage. Propane tank, welding regulator, electric shutoff valve.

The tank pressures are not close and the nozzle designs should be very different.

keydl

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post #3 of 9 (permalink) Old 08-16-2009, 03:03 PM
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Most Cummins do not respond as well to propane as a Ford or Dmax.
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post #4 of 9 (permalink) Old 08-16-2009, 08:57 PM
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Quote:
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Most Cummins do not respond as well to propane as a Ford or Dmax.
What do base this remark on?

Every turbo diesel engine responds with additional power and mileage gains from the addition of propane injection. Cummins, Ford, GM, International, CAT, Detroits, etc.

It simply adds a small amount of additional fuel, to burn the diesel faster and more completely.
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post #5 of 9 (permalink) Old 08-16-2009, 09:22 PM Thread Starter
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i know that much but can i run propane threw a nitrous kit if so what jet and were to install on the intake horn or the air filter
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post #6 of 9 (permalink) Old 08-17-2009, 12:49 AM
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Quote:
Originally Posted by powershotone View Post
What do base this remark on?

Every turbo diesel engine responds with additional power and mileage gains from the addition of propane injection. Cummins, Ford, GM, International, CAT, Detroits, etc.

It simply adds a small amount of additional fuel, to burn the diesel faster and more completely.
Cummins has a higher compression ratio and tend to pull the tops off of pistons.
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post #7 of 9 (permalink) Old 08-17-2009, 05:35 AM
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I don't think that it would be well to use more than the lines and electric valve.

I have not done this.

The artical puts a 3/8ths tube in the intake elbow pointed at the compressor wheel to mix well. The controls require some boost to turn on the propane and a welding regulator to set the pressure.

Blow $1k on a propane kit or look up the discription to use your parts, there is little in common between the kits.

Both kits are for racing, the DIY is for fuel management on tuggers and roadrunners.

keydl

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post #8 of 9 (permalink) Old 08-27-2009, 03:29 AM
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Why not just use Nos.

Propane is a combustant not an accelerant like Nitrous so itís a lot harder to tune and if done wrong will pre-detonate and blow head gaskets.

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post #9 of 9 (permalink) Old 08-27-2009, 07:00 AM
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Difrent strokes for difrent folks.

If he is a racer and owns the NOS kit - no question - no propane as first fuel additive.

If he wants up to 25% better fuel mileage on diesel - propane is a good place to look.

Too much propane dents the hood with hard parts, when you get close to a mixture that will ignite the pressure goes up the same as preignition on a spark ignition engine.

As a mixture that is under 5% of the fuel it can boost HP and mileage.

I have not done it but intend to - best guess at the current knowledge level - 1 1/4 % mix at 4-5 # boost and add 4% at 15# boost. At that mix it seems to work as a catalyst to raise the combustion temp in a controlled manner - after the diesel lights.

Yes it will light but if you havs worked on propane fueled engines they have a very narrow mixture that they will run at - to much or to little - no run. Add it to a diesel and approch the 'run' mixture and you get preignition. Wet it out with water pumped in to cool the mixture and get a power boost from the steam and the extra propane fuel and eliminate some of the smoke with more power.

It is not idiot proof, so have the coin to put it back togather and learn to recognise malfunctions.

keydl

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