[Diy_efi] Jag V-12 Injectors (was Digest Vol 21...)

Fri Nov 3 03:35:13 UTC 2006

Terry,
I think Dodge Magnum V-8 injectors are 19 #/hr, but I also think they run at
a higher pressure than some other engines.  I'm guessing they're rated at
that pressure, but I'm not sure about that.  318's and 360's (5.2 or 5.9L)
both use the same injector as far as I know.

Out of curiosity, why change out the Jag injectors?  My dad has a Jag V-12
that he's thinking about putting in an Allard kit car, and we'd like to keep
the EFI on that as well.  I hadn't planned on replacing any of the injectors
or other hard parts, but had sort of toyed with the idea of ditching the ECM
(which I suspect is a GM unit anyway).  I know the injectors are funky, but
as long as they worked, they were going to stay.  I have exactly zero
experience with Jag stuff at this point...

Clair

----- Original Message ----- 
From: "terence difalco" <olpaint at hotmail.com>
To: <diy_efi at diy-efi.org>
Sent: Thursday, November 02, 2006 7:16 PM
Subject: [Diy_efi] RE: Diy_efi Digest, Vol 21, Issue 1

> hello all,
> I'm new to the list and not sure how to use it yet (so far I can't find
> archives or anything that resembles a discussion board) but I'm working on
> something and could use some help. The project is a jag v12 and what I'm
> doing is replacing the hoses and old style fuel rail with a more modern
> o-ring style fuel rail. I have the fuel rails, hoses etc but need a
> substitute injector. (low impedence, 18.1 lbs per hour.) So far my choice
is
> a ford white (Escort 1.9L) which matches specs quite closely but I have
two
> questions. First the jag specs say peak and hold and the escort is I
believe
> saturated. Is that about the ECU or the injectors? Second, can I exchange
> the tops of similar bosch injectors without destroying the inner workings.
I
> could destroy an injector to find out but I'd rather hear from someone who
> has done this whether successful or not.
> Thanks in advance
> Terry diFalco
>
> any information is welcome
>
>
> >From: diy_efi-request at diy-efi.org
> >Reply-To: diy_efi at diy-efi.org
> >To: diy_efi at diy-efi.org
> >Subject: Diy_efi Digest, Vol 21, Issue 1
> >Date: 1 Nov 2006 10:00:20 -0800
> >
> >Send Diy_efi mailing list submissions to
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> >When replying, please edit your Subject line so it is more specific
> >than "Re: Contents of Diy_efi digest..."
> >
> >
> >Today's Topics:
> >
> >    1. Porsche electronic fuel injection (fox at hiwaay.net)
> >    2. Re: Porsche electronic fuel injection (Bobqzzi)
> >    3. Re: Porsche electronic fuel injection (Mike)
> >    4. Re: Porsche electronic fuel injection (Adam Wade)
> >    5. Re: BMW/Siemens stratified direct injection, link (Bernd Felsche)
> >
> >
> >----------------------------------------------------------------------
> >
> >Message: 1
> >Date: Tue, 31 Oct 2006 13:46:49 -0600 (CST)
> >From: fox at hiwaay.net
> >Subject: [Diy_efi] Porsche electronic fuel injection
> >To: diy_efi at diy-efi.org
> >Message-ID: <1162324009.4547a8296ba81 at webmail.hiwaay.net>
> >Content-Type: text/plain; charset=ISO-8859-1
> >
> >Hi -
> >
> >Does anyone know the name of the company that makes an electronic FI
> >conversion for 911 Porsches with CIS injection ('78 to '83)?
> >
> >Charlie
> >
> >
> >------------------------------
> >
> >Message: 2
> >Date: Tue, 31 Oct 2006 14:55:06 -0500
> >From: Bobqzzi <bobqzzi at cox.net>
> >Subject: Re: [Diy_efi] Porsche electronic fuel injection
> >To: diy_efi at diy-efi.org
> >Message-ID: <4.2.0.58.20061031145426.00b6ffc0 at pop.east.cox.net>
> >Content-Type: text/plain; charset="us-ascii"; format=flowed
> >
> >Rensport
> >50 Tripp Street, # 16
> >Framingham, MA 01702
> >
> >
> >508-875-8911
> >Fax: 508-872-7361
> >
> >Email: rensport at cs.com
> >
> >I've seen the development done on the dyno- excellent power and
> >driveabilty.
> >
> >
> >At 01:46 PM 10/31/2006 -0600, you wrote:
> > >Hi -
> > >
> > >Does anyone know the name of the company that makes an electronic FI
> > >conversion for 911 Porsches with CIS injection ('78 to '83)?
> > >
> > >Charlie
> > >_______________________________________________
> > >Diy_efi mailing list
> > >Diy_efi at diy-efi.org
> > >Subscribe: http://lists.diy-efi.org/mailman/listinfo/diy_efi
> > >Main WWW page:  http://www.diy-efi.org/diy_efi
> >
> >
> >
> >------------------------------
> >
> >Message: 3
> >Date: Tue, 31 Oct 2006 14:06:20 -0600
> >From: Mike <mls928 at sbcglobal.net>
> >Subject: Re: [Diy_efi] Porsche electronic fuel injection
> >To: diy_efi at diy-efi.org
> >Message-ID:
> > <6.2.0.14.2.20061031140538.030f1200 at pop.sbcglobal.yahoo.com>
> >Content-Type: text/plain; charset="us-ascii"; format=flowed
> >
> >www.bitzracing.com
> >
> >Mike
> >
> >
> >At 01:46 PM 10/31/06, you wrote:
> > >Hi -
> > >
> > >Does anyone know the name of the company that makes an electronic FI
> > >conversion for 911 Porsches with CIS injection ('78 to '83)?
> > >
> > >Charlie
> >
> >
> >
> >------------------------------
> >
> >Message: 4
> >Date: Tue, 31 Oct 2006 12:49:11 -0800 (PST)
> >From: Adam Wade <espresso_doppio at yahoo.com>
> >Subject: Re: [Diy_efi] Porsche electronic fuel injection
> >To: diy_efi at diy-efi.org
> >Message-ID: <20061031204911.88288.qmail at web32208.mail.mud.yahoo.com>
> >Content-Type: text/plain; charset=iso-8859-1
> >
> >--- fox at hiwaay.net wrote:
> >
> > > Does anyone know the name of the company that makes
> > > an electronic FI conversion for 911 Porsches with
> >CIS
> > > injection ('78 to '83)?
> >
> >TWM has throttle bodies with fuel rail and
> >regulator...  I knwo that for sure.  They may have an
> >appropriate ECU for you to work with as well, or you
> >could do something yourself (convert a GM unit, build
> >a MegaSquirt, etc.) just using their throttle bodies.
> >
> >| Kawasaki Zephyr 615 (Daphne)       Kawasaki Zephyr 550 (Velma)|
> >| "It was like an emergency ward after a great catastrophe; it  |
> >|   didn't matter what race or class the victims belonged to.   |
> >|  They were all given the same miracle drug, which was coffee. |
> >|   The catastrophe in this case, of course, was that the sun   |
> >|     had come up again."                    -Kurt Vonnegut     |
> >| M/C Fuel Inj. Hndbk. @ Amazon.com -  http://tinyurl.com/6o3ze |
> >
> >
> >
>
>___________________________________________________________________________
_________
> >Cheap Talk? Check out Yahoo! Messenger's low PC-to-Phone call rates
> >(http://voice.yahoo.com)
> >
> >
> >
> >------------------------------
> >
> >Message: 5
> >Date: Wed, 1 Nov 2006 11:33:05 +0800
> >From: Bernd Felsche <bernie at innovative.iinet.net.au>
> >Subject: Re: [Diy_efi] BMW/Siemens stratified direct injection, link
> >To: diy_efi at diy-efi.org
> >Message-ID: <200611011133.05795 at death.2.spammers>
> >Content-Type: text/plain;  charset="iso-8859-1"
> >
> >On Monday 30 October 2006 23:04, d at davidhunt.net wrote:
> > > I'm curious.
> >
> >We agree on that, for sure! :-)
> >
> >But please explain why you included the entire previous article when
> >you don't appear to refer to any of it?
> >
> > > 1) If the fuel is delivered to the back of the intake valve and
allowed
> > > to heat - is the 'atomization' required?  I realize that a larger O2
> > > charge is available if the fuel evaporates in the chamber, but what if
> > > full evaporation is the actual requirement?
> >
> >That's not direct injection. Direct injection is directly into the
> >cylinder.  There is no valve between the injector and the combustion
> >chamber.
> >
> >All the latent heat of evaporation absorbed by the fuel is then from
> >the gases being compressed in the combustion chamber. It provides
> >less time for evaporation so the droplet size has to be smaller.
> >
> >There is no need to allow for "wetting" of inlet tracts and valves
> >with direct injection so the injected quantities can be far more
> >precise; resulting in greater power, fuel efficiency and better
> >control of emissions.
> >
> >In terms of stratified charge, an ignitable rich "bubble" of
> >air-fuel mixture can be concentrated fairly reliably near the spark
> >gap; and allow the engine to run much "leaner" than a homogeneous
> >charge engine fed by port injection, TBI or fuel dripping from a
> >sponge into the inlet manifold.
> >
> >Stratified charge is useful because the (Otto cycle) engine can
> >operate much more efficiently under light load conditions. That is
> >especially so when the throttle valve can be fully opened and the
> >power output regulated by mixture (and EGR flow) control.
> >
> > > 2) If the fuel is evaporated at the intake valve, is there a serious
> > > problem mixing fuel with O2 in the chamber?
> >
> > > ----- Original Message -----
> > > From: "Bernd Felsche" <bernie at innovative.iinet.net.au>
> > > To: <diy_efi at diy-efi.org>
> > > Sent: Wednesday, October 25, 2006 11:23 AM
> > > Subject: Re: [Diy_efi] BMW/Siemens stratified direct injection, link
> >
> >[198 lines snipped]
> >
> >--
> >/"\ Bernd Felsche - Innovative Reckoning, Perth, Western Australia
> >\ /  ASCII ribbon campaign | "If we let things terrify us,
> >  X   against HTML mail     |  life will not be worth living."
> >/ \  and postings          | Lucius Annaeus Seneca, c. 4BC - 65AD.
> >
> >
> >
> >
> >------------------------------
> >
> >_______________________________________________
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> >
> >
> >End of Diy_efi Digest, Vol 21, Issue 1
> >**************************************
>
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