Re: [alfa] RE: 164 up in flames

["Bill LeClair" <billleclair@xxxxxxxxxxx>]

The spica fuel pressure should be about 18-20 lbs., the main filter has a
regulator built into it that will start to by-pass the fuel back to the tank
if the pressure rises over 24 lbs.


Spend the money for fuel injector hose.


Bill LeClair



----- Original Message ----- 
From: "Jon Pike" <jhpike@domain.elided>
To: <alfa-digest@domain.elided>
Sent: Saturday, September 13, 2003 3:38 AM
Subject: [alfa] RE: 164 up in flames


> >Are we sure SPICA is lower pressure?  I know a lot of the pressure
> >> comes from the SPICA injection pump, but I'd look up or measure the
> >> pressure upstream of the injection pump before assuming it's
> >> appreciably lower than that of Bosch EFI.  SAE 30R7 should be fine
> >> for carburetors, though.
> >
> >
> >
> >The pressure into the Spica pump is 25 - 30 psi, IIRC.
> >
> >In the hard lines, it's much higher, as much as 200 psi, again, IIRC.
> >The pressure from the pump opens the injectors.
> >
> >bs
> >
>
> I concur, and IIRC,  the flow is either 1/2, or even 2-3 gallons per
> minute.. lots of pressure and lots of flow, since the gas is acting as a
> coolant and lubricant for the pump.  The earlier quoted pressure is more
> like where the low fuel pressure warning light would be on.  (Wish I
> still had my 69 Berlina manual, which gave all these details)
>
> Don't even think about using low pressure line!  You pop a hose,  you'll
> be spraying a lot of gas, fast!!
> In fact,  I'd like to know sources for good quality line rated for these
> pressures.. all this talk about gas leaks is getting me itchy to replace
> everything soft while I have the car apart.
>
> Another IIRC,  I either read in Wes Ingram's Spica Book, or heard him
> say at the 2001 convention,  that the injector side pressure is around
> 350 psi.  They are basically passive relief valves with spray nozzles.
>
> Jon and Marcia
> 77 Spider
> Irvine, CA
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