Lpg Conversion question 1

[mag88]

Iam currently in the process of a LPG conversion, I understand that a liquid fuel injector can not run gaseous propane through it because it has no lubrication qualities. Does anybody know of a inert gas that can be mixed with gaseous propane that has enough lubrication qualities?

 

[ivymike]

I doubt there is one. Why not use a fuel system designed for gaseous fuel?

 

[mag88]

The cost to substitute exspensive oem gaseous injectors.

 

[patprimmer]

LPG can run at up to 300psi. Normal petrol injectors are designed for 30 odd psi. Does that suggest a problem?

Regards

eng-tips, by professional engineers for professional engineers
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.

 

[mag88]

It will run on gaseous propane like I said not high pressure liquid.

 

[patprimmer]

Well then, how will you handle the extra volume. An equal mass of gas takes a lot more room than liquid.

The people who make liquid or gas LPG injectors don't go to the expense because the enormous numbers of petrol injectors out there will do the job.

LPG is a dangerous substance when handled naively. Without bothering to read past the first obvious flaw in your post, I tried to discourage you. I stand by that decision. You are playing with fire, literally. Only use LPG rated components on an LPG system.

Regards

eng-tips, by professional engineers for professional engineers
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.

 

[turbocohen]

I second Patprimer. LPG operating pressures vary and liquid systems need to be able to operate in excess of 400psi.
For lp gas, there is not enough flow area using a gasoline injector. For liquid there are very few port injectors capable of +400psi let alone designed for it.

 

[Unotec]

If you do decide to do this, please take photos of the aftermath, 'cause it'll be a blast, literally

<<A good friend will bail you out of jail, but a true friend
will be sitting beside you saying ” Damn that was fun!” - Unknown>>

 

[turbocohen]

B L E V E May I suggest you Google it.

 

[Unotec]

yeah, I was at the San Juanico Disaster, saw that one with my own eyes and worked in the rescue crews. But this defeats the purpose, when the point is to discourage of doing lpg on petrol fuel nozzles

<<A good friend will bail you out of jail, but a true friend
will be sitting beside you saying ” Damn that was fun!” - Unknown>>

 

[turbocohen]

No, this does not defeat the purpose of this post. Quite a few guys have burned themselves and property when experimental fuel systems went oops. Rule #1. Do not harm self.