[Diy_efi] RE: Diy_efi Digest, Vol 21, Issue 1
terence difalco
olpaint
Fri Nov 3 01:16:43 UTC 2006
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
>
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>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
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> >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
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>
>
>------------------------------
>
>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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