LPG Fuel Injection

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Came across this folder in the Yahoo MegaSquirt group. Not sure if you can see it without being a yahoo member, but heres the link anyway:
http://photos.groups.yahoo.com/grou...er=&.view=t&.done=http://briefcase.yahoo.com/

I'm not exactly sure what the deal is there, but it seems as though they aren't using a fuel pump, like the Liquiphase in-tank setup, instead utilising a pressure regulator. I dont recognise where the injector is from, it doesn't look like something I've seen in the past.

now

It seems to me that this would be an incredible modification to carry out on an LPG vehicle. MS installations are already pretty easy to carry out, and it would probably be easier to tune than a conventional vapouriser equipped vehicle. With the latent heat in LPG turning into gasseous LPG in either the intake manifold (TBI) or in the cylinder (multipoint), turbocharging on standard compression ratios becomes a viable option, since it would chill the intake charge somewhat more than an Intercooler ever will.

Thoughts? Comments? :D


edit: apparently theyre the Bosch LPi Injectors.
 
Been around since 1996. An Aussie SAE article dealt with the issues involved. Impco took over BSC in Italy, who revolutionised LP gas EFI in 1998. Electonic liquid EFI will be the next things. It's likely the development costs of the Liquiquip have been the issue, mate. Street Machine had a big write up on it for 1997 Dec issue.

Ford and Holden then went to stupid lpg mixers, not the injectors. Go figure? The mega-costs of injector and EFI mapping, I'd say. Someone would have under bid the cost of the better system. That's why the latset E-Gas Falcons are so guttless compared to the Barra 182. 160 or so kW is quite a loss.
 
Thanks for the link, disco! :)

I have been considering a Megasquirt setup for another car of mine, and was unaware of this application, but this is exactly what I have been really hoping for for my turbo-LPG '66 Mustang. As you note, capturing the latent heat of evaporation is a big key to unlocking the true potential of LPG.

I recall reading a while back that one can route liquid LPG to conventional injectors, and that the injectors should work fine. I have no proof of that, though, and these injectors don't look like unmodified gasoline/petrol units. Nonetheless, I need to dig further into this... ;)
 
verry interesting topic , i also was thinking to do this , a turbo setup with multi port lpg injection , are there not more links ? tips ore howto ? i,m not a yahoo member so i could not read the link ,
 
I understood that regular injectors froze up with liquid propane. And that return lines posed a problem of sorts. Still, this could all be incidental and/or part of a negative publicity campaign.
 
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