Thread: Lpg diesel fumigation

You're wasting your time with the hydrogen. Only big-oil conspiracy types believe that works.

LPG works but will make life very hard on your engine. Be careful.

Ive never heard of the Hydrogen vapour inj and I dont think you will be able to meter the LPG with a petrol engine based converter due to the massive vacuum that diesels produce.

As far as doing it yourself, IT IS ILLEGAL AND DANGEROUS and unless you are a registered gas fitter then you shouldnt touch it.

As far as being hard on the engine, Im sure it wouldnt like it but apparently the 300TDI's take it pretty well and you get reasonable gains from it and as long as you keep the mix low I dont think you will do too much damage as our Diesel over here is such poor quality that anyhthing to improove it's burn would probably make the engine happier.

Search is your friend. Search on LPG fumigation and you'll find myriad posts.

See also Dieselgas Technologies - LPG injection for diesel engines...

I thought that diesels produce less vacuum ? i'd give it a go, just use a much smaller gas system than the equivalent capacity petrol motor would use- i wouldnt wory about killing the nissan, 1 less ! find as much info as possible about the systems before you try anything.

Originally Posted by locorr

Maybe a crazy idea but is it possible to use a lpg fumigator off a car for diesel fumigation. Not sure if there is enough adjustment on them to get the ratio low enough. I've read that 15 to 20% is used. I have an old 3.5 rangie on gas and a disco 300tdi. I also have a navara tdi 2.7L that I'll use for experiments, don't want to hurt the disco. I'm also in the process of building my first hydrogen from water splitter. Will attempt to use hydrogen as a catylist for the diesel.

have you had a look at relevent websites? (eg dieselgas)

my son's 110 has their fitting installed and it is very good, both on increased power & economy

my understanding is that the lpg injection is controlled by a chip, and I am wondering how you will meter the lpg supplement to accord with throttle/power settings

Originally Posted by mcrover

Ive never heard of the Hydrogen vapour inj and I dont think you will be able to meter the LPG with a petrol engine based converter due to the massive vacuum that diesels produce.

As far as doing it yourself, IT IS ILLEGAL AND DANGEROUS and unless you are a registered gas fitter then you shouldnt touch it.

As far as being hard on the engine, Im sure it wouldnt like it but apparently the 300TDI's take it pretty well and you get reasonable gains from it and as long as you keep the mix low I dont think you will do too much damage as our Diesel over here is such poor quality that anyhthing to improove it's burn would probably make the engine happier.

300Tdi's dont produce Vaccum. Hence the need for a Vacuum pump. I thought you were a mechanic?

Thanks for the reply's.
Yes I know it's illegal to do it myself.
Yes I've check other sites about lpg diesel, I like the idea not the price.
I would think there would be vacuum on the air cleaner side of the turbo, how much I don't know. Less would be good because the old carbi style lpg fumigators use vacuum to increase the mixture, less vacuum less lpg. They do have enrichment control but I'm not sure how low it goes.
Like I said the navara will be the test mule, it has cancer so it's not long for this world anyway. It's coming up to 400,000 km so it might be fitting if it goes out with a bang.

Did you Google LPG fumigation?

The first one to come up is this home made system: LPG (Propane) Fumigation for Diesel Engines