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Old 11-02-2006, 03:35 AM   #1
andys
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Default Propane

Does anyone here have any experience injecting liquid propane as an air charge coolant / octane booster?
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Old 11-02-2006, 05:01 AM   #2
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I remember reading about someone building a DIY propane kit. Try doing a search within this forum?
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Old 11-02-2006, 06:38 AM   #3
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Propane is FAR-FAR more dangerous to use, in comparison to any other material.

A leaking mix of 50/50 water/alcohol won't do much unless it is dripping on a hot exhaust.......a leaking propane system could cause a BIG bang, with resulting fire.

Using it would be a 'last resort' option, for me.
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Old 11-02-2006, 08:24 AM   #4
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diesel guys use it alot.

Also, in addition to Uncle Scotty's warnings you would have to stop at every tunnel and get inspected just like the campers with their propane tanks

finally - read this thread http://forums.nasioc.com/forums/show...pane+injection

Last edited by rebos123; 11-02-2006 at 10:47 AM. Reason: added thread
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Old 11-02-2006, 01:06 PM   #5
andys
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it's dangerous but only really as dangerous as you 60L or fuel. Probably much less so in the scheme of things. Would you rather be covered in fuel and lit on fire or covered in propane and lit on fire?

Anyway,

If you inject liquid propane as you would inject Water you get to capitalize on the serious cooling effects of the phase change of the liquid. As a bonus you also make the fuel a higher octane. Furthermore it's very low cost as there are no pumps / tanks etc. etc. Simply an upside down BBQ tank, a line and a solenoid valve.

I'll crunch some numbers and get back to this.
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Old 11-02-2006, 05:15 PM   #6
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For charge cooling (via liquid to vapor conversion) purposes:
Gasoline 140 Btu/lb
Propane 227 Btu/lb
Ethanol 361 Btu/lb.
Water 970 Btu/lb
Gasoline and Propane have similar cooling effects. Water is by far the best. This is probably not news to you
The hot setup, it seems, would be to run pure ethanol mixed with water and then injected all togeter in the OEM fuel injection system.
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Old 11-02-2006, 05:55 PM   #7
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Uncle scotty..... I thought 50/50 would not ignite.........am i wrong to think that?
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Old 11-02-2006, 10:43 PM   #8
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I dunno. Probably - but you'd never want 50/50 anyway. Maybe 90/10?
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Old 11-03-2006, 08:37 PM   #9
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Quote:
Originally Posted by JMK508 View Post
Uncle scotty..... I thought 50/50 would not ignite.........am i wrong to think that?
......100 proof vodka burns---poorly......but it will, if heated a bit above 'room temperature'.....but that is one of the reasons that a 50/50 water/alky mix is used.....it improves octane, cools, won't burn well if it gets away from ya, is cheap and easy to manipulate and causes few issues.

I would be VERY leary of any system that included use of a pressured/liquified, flamable gas---such as propane, without a firewall between the bottle and ME.
In the trunk is NOT an option for me, unless a heavy, steel sheet would be fabbed to go behind the rear seats....which is a NO-GO, in any event

Trucks have their bottles mounted in the back, OUTSIDE the passengers compartement.

the vehicles fuel tank and system are NOT in the same catagory as an added on system....no way, no how.
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Old 11-20-2006, 12:02 AM   #10
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Quote:
Originally Posted by Uncle Scotty View Post
......100 proof vodka burns---poorly......but it will, if heated a bit above 'room temperature'.....but that is one of the reasons that a 50/50 water/alky mix is used.....it improves octane, cools, won't burn well if it gets away from ya, is cheap and easy to manipulate and causes few issues.

I would be VERY leary of any system that included use of a pressured/liquified, flamable gas---such as propane, without a firewall between the bottle and ME.
In the trunk is NOT an option for me, unless a heavy, steel sheet would be fabbed to go behind the rear seats....which is a NO-GO, in any event

Trucks have their bottles mounted in the back, OUTSIDE the passengers compartement.

the vehicles fuel tank and system are NOT in the same catagory as an added on system....no way, no how.
Oh, vodka injection. One for your car and one for me.
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Old 11-20-2006, 12:26 AM   #11
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Quote:
Originally Posted by ChgoJay View Post
Oh, vodka injection. One for your car and one for me.
...100 proof = 50% alcohol/50% water.......that is about the minimum alcohol---any type... concentration that will burn at a high 'room temperature'

GOT IT


...and if basic chemistry eludes you, it does NOT elude me.
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Old 11-20-2006, 12:33 AM   #12
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Quote:
Originally Posted by Uncle Scotty View Post
...100 proof = 50% alcohol/50% water.......that is about the minimum alcohol---any type... concentration that will burn at a high 'room temperature'

GOT IT


...and if basic chemistry eludes you, it does NOT elude me.
Why are you such a dick?
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Old 11-21-2006, 05:42 AM   #13
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Quote:
Originally Posted by oldhat View Post
Why are you such a dick?
....man...ya got no clue, do ya
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Old 11-21-2006, 02:29 PM   #14
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Quote:
Originally Posted by Uncle Scotty View Post
....man...ya got no clue, do ya
Why you act like a sarcastic, surly adolescent with a chip on his shoulder? No, I have no clue.
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Old 12-15-2006, 03:41 AM   #15
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.....

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Old 12-16-2006, 01:42 PM   #16
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....yeah...this guy wants to re-invent the wheel and wants to just buy a kit and be done with it.

....aint happenin.

If propane use was, REALLY, any better than alcohol----in any way......the d00000ds here, and on all the other boards woulda been all over it like a cheap HO on a crack rock.

REALLY.
QUICK, like.

this guy, obviously, has some kind of 'thing' for the 'pane----wasn't that on one of those stupid cartoon shows, once ......and, just like most of the kiddies these days....can not and will not take that for any kind of an answer.
And after spending countless hours and $$$$$$$$$ on trying to make their idea fit what they WANT it to---and it does NOT, in the end......then they finally, silently, admit defeat and come up with another hairbrained idea, that won't work(nearly as well as something else or at all), either.
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Old 12-16-2006, 01:43 PM   #17
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Quote:
Originally Posted by oldhat View Post
No, I have no clue.
...stick around a couple years...ya WILL
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Old 12-16-2006, 04:42 PM   #18
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.....

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