Has anyone seen an engine running of of propane that is turbocharged?? I wonder if it could work. I'm thinking it would work like a turbocharged diesel.....the more air you force in there the more you turn up the "fuel". And being presurised there shouldn't be a problem getting enuf fuel. Can anyone think of any problems that I'm not thinking of?? I don't think you would need a new fuel mixer.....just pipe the turbo into the intake before the fuel mixer. I know I'm just brain storming now. To many :beer: and not enuf :zzz:

Lots of pikes peak car's are turbo propane. Check this out (http://www.truckworld.com/4x4-OffRoad/96-1957TurboWillys/1957TurboWillys.html)

very interesting, what about nitrous and propane?

You bring up some interesting concepts here.... I can see one issue though, on some of the farm-trucks we used to have that
were converted to gas/propane systems, they also used a small
resevoir that somehow injected a hihg-grade oil into the intake
for better lubrication. (mainly for valves I think) Not sure how it
was plumbed or even worked, but I know the oil used was that
"Marvel Mystery Oil" stuff...... Those trucks ran pretty good, and
showed little wear for their mileage.. (And the farm bosses that
drove them, ran the piss outta them)


turbo for power, propane for economy...hmmmmm

smog legal too............

there is a company out of NJ (I think) that makes a dual fuel converter for propane or natural gas. it's been a long time since I've looked at any of that info, but I think it was Welsh or Walsh Technologies. the owner of the company is John. he primarily does conversions for big rigs/fleet trucks, but has a kit for passenger vehicles. if I remember correctly, the regulator was around $300, and the tank was another $300 on top of that. I tried to dig up the link to the web site, but can't find it. I can check my info at home if you can't find the site.

it should be just fine as long as you can get the a/f ratio to stay in the hunt i remember i guy with a super charged propane set up here in texas. it was a drag car and it ran in the sixs. the biggest problem would be keeping it from leaning out. mike

here is that link

http://www.welshtec.com/

They sell alternative fuel stuff.

Am working on doing an AMC 360 lpg myself.....

What are you looking to use this in anyway? Rockcrawler? Sand runner?

later

themaddhatter

Yes, you should be able to turbocharge your propane rig and turn up the fuel, so you'll have more fuel and more air, but if you do that you'll also need to retard the timing for it to work best and to avoid detonation. This system someone was describing that injects a tiny bit of oil into the intake, that should actually be helpful in this situation, because it would help avoid detonation. Some turbocharged rigs use water injection for this purpose, they actually inject a tiny bit of water into the combustion chamber. Good luck.

thanks for posting the link - it was driving me nuts that I couldn't remember it. now I'll be able to sleep tonight :p

Originally posted by Black_Panther
thanks for posting the link - it was driving me nuts that I couldn't remember it. now I'll be able to sleep tonight :p

I hate it when that happens!!!

yeah, me too man......

I was thinking about that oiling thing....

It is my opinion that if you were to keep the whole valvetrain stock, then you would need something like that (yes, you are right that LPG is hard on valves: damn hot and doesn't self-lube the exhaust valves).

If you build the motor for propane, then you wouldn't need that. Install stellite-tipped stainless valves and stellite seats, and you should be alright.

But the oiling thing might not be bad too. Could probably rig it up as some sorta venturi thing. A tiny tube coming into the airhorn of the LPG mixer, then the engine vac pulls some out...

Would require a little experimentation, but that might work out.

:D

glad to hear I'm not alone :D wasn't there a tech article up here a while back on someone doing a full propane swap into an old FJ40 or a Jeep. I didn't do a search, but I'm sure it's out there somewhere...

ok, took me a whopping 30 seconds to find it in the tech department :emb4: here's the link Propane Power!!! (http://www.pirate4x4.com/tech/propane/index.html)

I have a 3.8 buick in my truck right now. I was thinking of converting to lpg, however I still have the turbo that went with the engine. I took the turbo system off when I rebuilt it and put the q-jet on it. I was just thinking of putting the turbo back on when I converted to propane. I love the advantages of propane off-road.

yeah, offroad propane kick ass.....

But in general, if you are replacing a carb system, there are TONS of benefits.

There are super simple parts to a propane system. A couple diaphrams, some valves, and voila: POWER....

No dinking with floats and jets and F'n vac leaks. This is by far the most simplest system one could run on an engine.

EFI runs nice, but all those electronics that hate being wet. LPG looks so much better.

And, you may want to scour old fleet salvage yards. I got my LPG system for $300 used out of a cab. Rebuild kits for the mixer and regulator are cheap too.

Only minus is finding fillup places (but they are there: campgrounds, industrial equipment renters usually too)

just my .02

themaddhatter