LPG Injection.

[The Punisher]

very interesting. Anybody try a constant flow type injector?? of course this 
would end up being similar to the servo controlled K-Jetronic I was thinking 
about earlier this year(still want to try it if I get time). A high speed 
servoconnected to a small barrel valve feeding a fuel block, that the 
constant flow injectors are connected to.
Unfortunatly this setup may be prone to inject gas instead of liquid at low 
flow rates.


>From: Chris McKinnon <chrism at cnx.net>
>Reply-To: diy_efi at diy-efi.org
>To: diy_efi at diy-efi.org
>Subject: RE: LPG Injection.
>Date: Mon, 24 Dec 2001 03:40:06 -0700 (MST)
>
>I've heard that they self-destruct due to the lack of lubrication provided
>by LPG, plus the fact that the fuel rail pressure will need to be at least
>300 PSI. I'm looking for a couple of cheap injectors to try though. No luck
>yet unfortunately :(
>
>As for valve seats, for LPG hardened valve seats are a MUST. I've been told
>LPG is very hard on old, non hardened, valve seats for leaded gas.
>
>
>Chris
>
> >Sorry I came in late on this one, but what happens if you try to use a
> >'conventional' electronic fuel injector with LPG ?
> >
> >I know LPG has some things going for it. I had this 76 dodge pickup with 
>a
> >440 that was on propane since almost new (had 140 gallons total 
>capacity!)
> >fuel system always worked good (emco on holley baseplate) only trouble it
> >had was the chrysler ignition system(installed GM HEI module and cured 
>it).
> >At about 350,000 miles or so it suddenly wouldnt hardly run so I tore the
> >engine down. The interior was quite clean and had VERY little sludge,
> >bearings looked good, and the cylinders had almost no ridge and good 
>looking
> >bores.
> >
> >The problem was that the valve seats finaly CRUMBLED. Some were totaly 
>GONE
> >and most were spider-webbed and falling apart. When the valves were 
>removed
> >most of the seats were removed by hand.
> >I've seen valve seats fail in gas engines(petrol for some) but nothing 
>like
> >this, it was downright STRANGE. Ever seen this??
> >
> >Marvin Fugate (always looking for more power)
> >
> >
>
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