[Diy_efi] timeframe to get equal fuel distribution

[Toyota Supra]

cylinder pressures and temps are the first things that come to mind, which 
might make it a couple of years back from being in f/i cars. another thing 
to consider is that a car with f/i has a completely different pattern in 
which air enters the intake manifold runners and chambers, so the extra 
area/time (in reference to it spraying in the bottom of the intake manifold 
vs directly into the cylinder) might be needed for atomization ??? not a 
fact, just a thought

-j






From: "Bevan Weiss" <kaizen__ at hotmail.com>
>Reply-To: List for general do-it-yourself EFI talk <diy_efi at diy-efi.org>
>To: "List for general do-it-yourself EFI talk" <diy_efi at diy-efi.org>
>Subject: Re: [Diy_efi] timeframe to get equal fuel distribution
>Date: Sun, 16 Mar 2003 17:40:53 +1200
>
>
>----- Original Message -----
From: "Adam Wade" <espresso_doppio at yahoo.com>
>To: "List for general do-it-yourself EFI talk" <diy_efi at diy-efi.org>
>Sent: Sunday, March 16, 2003 5:30 PM
>Subject: Re: [Diy_efi] timeframe to get equal fuel distribution
>
>
> > --- Bevan Weiss <kaizen__ at hotmail.com> wrote:
> >
> > > Which cars are using GDI (gasoline direct
> > > injection)??
> >
> > http://alflash.narod.ru/D4.htm
> >
> > Nissan, Mitsubishi, Toyota (Denso system).
> > Supposedly, Mitsu plans on replacing all port
> > injection with GDI eventually.
> >
> > Apparently Volvo had a car with a Mitsu GDI.
> >
> > Renault has used the Siemens/Bosch system in some
> > Meganes.
> >
> > Delphi has a system, but I can't find whose cars it is
> > used in.
> >
> > > (also what's the cost for the injectors?)
> >
> > That I can't help you with.  Are they even available
> > outside of OE Tier 1 and 2 levels?  GDI doesn't seem
> > to serve a lot of purpose without very specific ECU
> > power, software, combustion chamber design, etc...  It
> > doesn't appear that it would be a lot of use to a
> > hobbyist.  Reading up on the Bosch/Siemens system,
> > there's not even anything you could modify witout
> > making a LOT of things worse.
>
>It would also seem that for some reason turbo engines aren't suited to GDI.
>Or at least from the statistics of current manufacturer releases.  It would
>seem that all the economy cars are going to GDI, and many of the upmarket
>models (ie lexus etc).  However any sport performance cars seem to not
>include GDI in the range...
>
>I'd have thought that it'd be something that you'd want to put on 
>everything
>that you possibly could.  Although maybe the higher intake pressures with
>turbo engines makes it inpractical.
>
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