LPG and diesel ?

Ron

There have been several posts about this in the last 2 months - just do a search to look up what has been said.

Meanwhile - check out the following websites for more information
http://www.lovato-autogas.com.au/
and
http://www.dieselgas.com.au/home.htm

Jeff

Jeff,

thanks for that, very interesting.

I would still be keen to hear from anyone whos done it? I cant find much on searches, and whilst its very interesting, the dieselgas site has a financial interest in telling us all how good it is.

This site is very good for getting real fair dinkum responses from real end users.

Rgds

Ron

Hi
Read an article in West Australian a couple of months ago.
A guy tows a double horse float with 100 series 4.2 diesel and he was really impressed with the extra performance and economy, it appears they have been doing it in big trucks for years! You can have it set up for better economy or better power or a mixture of the two.
Mind cost was about $2500 fitted here in Perth.
Brian wa.

I tihkn I may have said this in a previous post.

Friend did it on an 8 tonne truck.

Theory is good, and when it worked porperly worked well.
From what I understand idea is to start on diesel and then keep enough diesel being injected so that combustion starts, but then inject gas for the rest of the power needed.
hassle was getting the metering system working properly. After a year he gave up. Was costing him too much being off the road for a few days a year getting it looked at. Don't know about the power side.
That is one story.

Also, I did work on some large stationary diesel generators where they started on diesel and switched over to a free supply of methane for running when warm. Think they had spark plugs expecially installed to do this.

Hi There,

Very popular in the states. You can buy a kit called the powershot 2000 which is LPG injection into a Diesel (similar to nitrous but less potent and longer sustaining). I found a great site a while ago about a home done jobby at Mr Sharkey's Homepage

LPG injection has been done on a lot of comp trucks including Alben Perretts GU from Landcruiser Mountain Park In Qld. Really quite easy to do but 1. should be done by a licensced gas fitter (legal reasons) 2. need to know what you are doing (need micro switches to cutoff supply when at idle, out of gear, etc) or you could end up with ....BOOM....

At the end of the day you will get way better power and torque (expect 30%+) and fuel economy as the lpg will allow better combustion and more fuel to be burnt.

Regards
David

new technology???

http://www.findarticles.com/p/articles/mi_m0EIN/is_1994_Dec_13/ai_15978034

hi ron i fit gas and have experimented a little with gas on diesel engines.on lower compression engines it is aposibility but most indirect diesels the compression is to high.and will cause the engine to detonate which willdestroy engine.diesel fuel spryed into intake will do the same as it is a very low octane fuel but works ok when injected in at the right time. gas would also work if injected in at right time,however this can be done , their is legal problems involved with safety issues
we have injected in directly to direct injec. engine ,nd does work ok,were stillworking on this when we get spare time, to overcome safety issues
dmech

Many thanks for all the replies.

I'm starting to think its not really a great idea.

If it was so good, it would be more popular and we'd all be running it.

Thanks again

Ron

As pointed out, this is an old concept from around the mid 70's (in Australia).

It works well on commercial (ie real truck) engines.

The problem with smaller engines is making it commercial viable, the legal and warranty issues.

Most of the links posted that relate to Dodge, Ford, or GMC vehicles are reaaly very basic systems, with litte or no adjustment for engine speed, load and boost variations. To do this properly you need a micro computer to calculate and adjust the LPG rates, OR use a standard restrictive mixer like th IMPCO units.

Dave
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