Not that I'm gonna run out and try it tomorrow or anything, but the LPG-slant idea creeps into my head every time I have to get into the engine compartment of the fork truck at work (friggin' starter this time. @#%*!) The mixer looks like it'd bolt right on to a 1bbl /6 manifold. With all the industrial slants out there powering things like aircraft tugs and such, I figure it's probably already been done. Anybody here ever see an LPG slant? Or have any info on how to set up an LPG system?

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Brian (Valianator)

'65 Valiant V100 170/T-flite
'82 D150 225/4-speed
'65 Dart 225 4 door
'68 Dart 225 4-door with Valiant front clip (future project)

I have no personal experience with it, but an australian-based email list I'm on has many guys that have converted to LPG in their early Valiants. I'm sure there is info on it: http://www.1962valiants.com/

Propane used to be such a great option...Mostly because it was so damned cheap!

It has gotten more expensive..And the price of it has risen more than diesel or gasoline. Still cheaper to run.

Expect a drop in horsepower and fuel mileage slightly

The thing I always wondered about was if there was a way to rig up a propane slant with a turbo...to offset the loss in power and mileage...And run a cheaper cleaner fuel?

-Peter

Expect a significant drop in horsepower and fuel mileage. Also expect to lose most of your trunk space.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

If I live long enough, I'm going to try it. I have just about everything I need, except for time. Have the turbo, propane system, adapters for the turbo to propane mixer, etc. Need new hose for the propane, and brackets for the tank. Have to fab the turbo pipeing.

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225

LPG systems are typically installed in fleet applications where the cost per mile is a major consideration in the operation of the vehicle. Fuel economy is lower with LPG simply because LPG contains less energy per gallon than gasoline. Power drops off somewhat because propane is usually metered into the engine as a gas which displaces air. Gasoline, in comparison, is metered into the engine as a liquid mist which displaces a negligible amount of air.

Unless you remove the gas tank and mount the propane tank in its place, you will lose trunk space. I wouldn't say that you will lose most of your trunk space but you will certainly lose all of the space under the parcel shelf and then some.

Propane prices vary from location to location. Places with a large amount of fleet traffic will usually have the best propane prices. In the USA, I have heard that Flying J has competitive prices ($1.49/gallon in Utah last month).

I have been trying to find some photos of slant six propane converions but have not had luck yet. However, Tom Jennings' Rambler conversion would be almost identical to a slant six conversion: http://www.wps.com/LPG/index.html

Frank
http://cars.rasoenterprises.com/
http://fuelsforum.rasoenterprises.com/

I would think that the setup from a slant powered forklift would just bolt right on to a slant six in a car or truck. I used to drive slant powered forklifts and the intake manifold looked identical to a stock one barrel. I think all you would need would be the carburetor, all the plumbing, and the tank for your trunk.

sorry. Double post. Ignore this one.

That would probably work, but I think most forklifts have a bit undersized carbs?
Should work anyway...

Seems to me I've read something about direct propane injection systems; i.e., propane injected as a liquid. I haven't read up on it yet; I imagine there are some fairly radical modifications to be made, but probably some fairly radical gains to be had, too.

As far as how much trunk space you lose to the tank, that kinda depends on whether we're starting with a '62 Valiant or a '69 Dart!

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

I think there is a place in Minnesota that specializes in liquid LP injection as EFI. I know Hyster is experimenting with it too.

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Official Cookie and Mater Tormentor.

Thanks for all the info! Gotta read up at some of those links.....

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Brian (Valianator)

'65 Valiant V100 170/T-flite
'82 D150 225/4-speed
'65 Dart 225 4 door
'68 Dart 225 4-door with Valiant front clip (future project)

Charlie S

you said and I quote:
"If I live long enough, I'm going to try it. I have just about everything I need, except for time. Have the turbo, propane system, adapters for the turbo to propane mixer, etc. Need new hose for the propane, and brackets for the tank. Have to fab the turbo pipeing."

Man send me a PM...I am in a bit over my head on some of those technical terms...As far as access to propane automobiles I have access to several so I can scavenge lots of parts...My family owns 50 acres of a junk yard...So the turbo and propane parts are not a huge problem..I just need to understand what I am doing

Any help with that you can provide...Is appreciated.

I bought a mint slant 6 shortwheel base 82 pickup....60,000 actual on it here in South Carolina...I want to take it back to Canada (where I am from) and install the turbo and switch it to propane)

I saved a couple of complete propane set ups...One was in a 85 Aries K car wagon....Propane vehicles were popular in Canada....the other propane system I have came out of a 1 ton chevy cube van....

I have muddled through and have a basic understanding of setting up a turbo on a slant.... So I am half way there to understanding it.

-Peter

In case anyone is interested in reading about LPG injection, I have two links:

Liquid Injection: http://www.eng-tips.com/viewthread.cfm?qid=129931

Gaeous Injection: http://fuelsforum.rasoenterprises.com/v ... .php?t=162