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Old Sep 2, 2004 | 06:17 PM
  #1  
ME Leigh's Avatar
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Propane Turbo Power

I am interested in learning a propane fueled engines. Does anybody know how propane is mixed with air? How about also running a turbo, how would you set it up?

I would like to know about propane conversion and what its about. I want to do this for a 300 or so cid motor with 8:1 compression with a stock flat cam. Thats why i want to turbocharge it, to pump up the power and VE.

[

Last edited by ME Leigh; Sep 3, 2004 at 06:39 PM.
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Old Sep 3, 2004 | 02:27 AM
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This is for a inline 6, so a simple, single turbo will be easy.
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Old Sep 3, 2004 | 02:31 AM
  #3  
sellmanb's Avatar
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From: Tigard, Oregon
Car: '86 Berlinetta
Engine: 350
Transmission: 700R4
If memory serves me correctly, propane is what diesels use. It is similar to how gas cars use NO2.

I dont know what octane propane is, but I'm guessing you'll need to advance or retard the timing accordingly.

In all honesty I have never heard of someone running a pure-propane engine. I've heard of the alcohol drag cars, but not propane. Sorry
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Old Sep 3, 2004 | 02:48 AM
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ME Leigh's Avatar
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No, propane can be used as the primary fuel. Its called LPG. It has a lower energy density then gasoline, but makes up for it with a higher octane rating,. That is why iwant to use a turbo, to take advatage of the higher octane and extract more energy from the propane.
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Old Sep 3, 2004 | 04:43 AM
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Car: 84 Z-28 Camaro, 2022 2500 silverado
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the GM vehicals on bace are diesel or gas/LPG powered, they have a switch to go from gas to LPG, and seem to have allot more power when it's in LPG position, when you pop te hood it looks like any other GM vehical's factory engine, I was talking to one of the vehical maintance guys awhile ago about it, and he told me that they install a kit to convert them to LPG supplyed by GM, you might want to look into seeing if that kit is avaibale to the public, and if they have it for you engine, also, the vechals seem to get really lousy mileage when using LPG (I think it's cheaper than gas, though), which is one thing you might want to consider.
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Old Sep 3, 2004 | 01:07 PM
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From: Calgary, Alberta, Republic of Western Canada
Car: 1986 Sport Coupé
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It can be done. I knew a guy about 15 years ago who has a 350 in his Nova and had twin turbos on it. It ran somehere in the 10s or 11s.

Propane is an EXCELLENT fuel for internal combustion engines. It has a higher octane than most gas and burns COMPLETELY--no carbon deposits even after 100,000s of miles! Clean as a whistle.

Go for it!
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Old Sep 3, 2004 | 06:41 PM
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Do you know how the propane carbs work? Like where the air inlet is, or where the propane goes.

Would propane work well in a blow-through setup turbo?
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Old Sep 3, 2004 | 07:02 PM
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From: Calgary, Alberta, Republic of Western Canada
Car: 1986 Sport Coupé
Engine: 305-4v
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Originally posted by ME Leigh
Do you know how the propane carbs work? Like where the air inlet is, or where the propane goes.

Would propane work well in a blow-through setup turbo?
I ran it on my car with a 350 for almost 20 years but you are better served by doing a search on Google. The setup in your picture looks pretty much like the one I had. Mine was an Impco setup that only moved about 400 cfm. The price of propane w2as often dirt cheap back then. I remember getting it for 2 cents per litre one time! My tank held about 85 litres, so that fill was only about $1.75
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Old Sep 3, 2004 | 07:10 PM
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I could'nt find much searching. I wish i had some Google stock though. I was thinking of a simple blow through design. I'd really liked to know how they propane and air are metered.

Every sentence starts with I

Last edited by ME Leigh; Sep 3, 2004 at 07:13 PM.
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Old Sep 4, 2004 | 08:40 PM
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From: B'ville, WV
Car: 2002 Formula Firebird
Engine: LS1
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hmmmm....funny how propane and alcohol work great and burn cleaner than gas....yet we are still using gas.

When you purchase propane does it come in a liquid or gaseous form? I've never seen liquid propane and it may not exist...just wondering.
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Old Sep 4, 2004 | 08:47 PM
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under mild pressure (I frogot the exact #, in wich it goes to liquid at room temp) propane is a liquid, when pressure is released it turnes to a gas, also a note to rember, only gasses burn, solids and liquids do not. (when you heat most flamable solids they break down into flamable gasses, same with liquids. see I accuatally learned somthing from fire fighter accadamy )
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Old Sep 4, 2004 | 10:22 PM
  #12  
ME Leigh's Avatar
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Car: 82 Z28
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Axle/Gears: 3.73 posi with spacer
I'm actually think cng or compressed natural gas now. CNG has an octane rating of 130 so i could run tons of boost on 8:1 compression.
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Old Sep 4, 2004 | 10:41 PM
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Car: 1966 El Camino Custom
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Transmission: 200R4
Axle/Gears: 3:73 12 bolt with Brute Strength
AK Miller Turbocharging actually sold a complete Propane/Turbo set up that was good for 700+ horsepower. I couldn't find any reference to Ak Miller Turbocharging other than this Propane/Turbo project on a truck website. The article I read years ago made me very interested in alternative fuels. My interest is mainly with Natural Gas because it has a thermal energy rating very close to gasoline where Propane is quite a bit lower. What makes propane attractive is it's availability compared to NG. A cross county trip with propane is easy to plan. Not so easy with NG. There is an NG station very close to me though, so for normal street terrorizing, it works for me. Not to mention being 85 cents per unit equalivalent to gallon of gasoline.

http://www.truckworld.com/4x4-OffRoa...rboWillys.html
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Old Sep 4, 2004 | 11:52 PM
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Natural gas fuel tanks are huge compared to propane tanks. keep that in mind.
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Old Sep 5, 2004 | 10:37 AM
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I didn't know that. Where can I find out what the comparison is as far as volume versus tank size? Any ideas?
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Old Sep 5, 2004 | 04:56 PM
  #16  
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From: Calgary, Alberta, Republic of Western Canada
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Originally posted by wesilva
I didn't know that. Where can I find out what the comparison is as far as volume versus tank size? Any ideas?
Google is the best I can suggest. Or talk to a natural gas provider.
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