Saturn EFI

[goflo at pacbell.net]

Reminds me of this mexican outfit used to be across the street - Three
stalls, both ends guys wailing away with grinders, sanders, paint guns -
Middle stall guy assembling an engine on a stand...

No offense, I hope, Gene - I'm sure every word is gospel - Hope you
see the story's kinda funny juxtaposed with all these guys trying to
dope out how this stuff works.

Regards, Jack

mrvette wrote:
> 
> Well for instance, on an old boat I had once, some years ago, it had a volvo
> 2100 engine with a no-choke carb. on it,  it was a total bitch to get started
> and stay running,   well no lie,
> 
> so I got a B230f volvo FI manifold/rail/t-body from a junkyard...fit perfectly
> on the boat,
> Went to another junkyard and got a GM computer from a 2300 Pontiac '89 grand am,
> or some such....similar sized engines....and wired it up with GM sending units,
> batch fired the injectors like GM (experimented with the configuration here, and
> found it made absolutely NO differance as which two were wired in a batch, boat
> ran same either which a way)
> since I had a water cooled exhaust manifold I could not do an O2 sensor, so I
> just forgot about it,  only code set was no o2 sensor,  so I forgot about
> it.....
> performance increase was astounding.....really,...I went up 3 prop sizes, nearly
> doubled lo end torque, it seemed,  and could run all day on 1/2 tank of gas, as
> opposed to the previous full tank of usage.....
> 
> I can't remember the specific numbers now, as I sold the boat some years ago,
> withthe injection on it....
> 
> I would  use the 1227730 computer, as it does NOT require a MAF sensor...use the
> tables and MAP,  certainly a much simpler wiring setup, with an increase in
> reliability....MAF tends to foul up, relays burn up, and it's expensive, and
> hard to plumb....
> 
> unless you want to waste time with doing your own chip,  don't get me wrong
> here, but I don't have the time to sit down and figger  out all that arcane
> programming crap, allthough it's interesting,   I would just buy an aftermarket
> chip...200 bucks and it's done.....GENE
> 
> Jemison Richard wrote:
> >
> > Gene,
> >
> > Another quick question.  If I understand you correctly, I should be able to
> > use any GM ECU to control my efi?  If so, I'd want to go with one that was
> > very common (and therefore known to most on this list!).  Which ECU would
> > you recommend under these circumstances?
> >
> > Rick J
> >
> > > -----Original Message-----
> > > From: mrvette [SMTP:mrvette at bellsouth.net]
> > > Sent: Wednesday, October 14, 1998 10:39 AM
> > > To:   diy_efi at efi332.eng.ohio-state.edu
> > > Subject:      Re: Saturn EFI
> > >
> > > I personally never had any trouble on several direct port injection
> > > probjects,
> > > by using an appropriately sized GM computer to run a similar sized engine
> > > with
> > > the prom already in it....a 1200 engine is a 1200 engine...IF you go
> > > closedloop
> > > the tables will calibrate themselves...
> > > the mechanicals don t matter that much, it's the injector type and size
> > > that
> > > matters more....most interchange without much problems...GENE
> > >
> > > Jemison Richard wrote:
> > > >
> > > > I'm wanting to adapt fuel injection to an inline 4 cylinder 4 stroke
> > > 1200cc
> > > > motorcycle.  I have been looking seriously at a Saturn EFI as the
> > > Manifold /
> > > > plenum / throttle body would physically fit the engine and the available
> > > > space quite nicely.
> > > >
> > > > I have several questions however, and have asked one person from the
> > > list
> > > > individually about this and he had some excellent feedback.  One
> > > question he
> > > > had however was whether Saturn did their own thing with respect to the
> > > ECU
> > > > or if they might have adapted an existing ECU to the project.  Does
> > > anyone
> > > > know an easy way for a novice to figure this out!?  Also, I'm interested
> > > in
> > > > opinions from the list as to the suitability of this unit compared to
> > > others
> > > > (my only experience with fuel njection has been the Saturns I own so I'm
> > > > really starting at square one).  Low cost is always a big factor for me.
> > > I
> > > > also have 4 motorcycles.  So, once I get this working, I could see at
> > > least
> > > > one other motorcycle becoming an EFI recipient!
> > > >
> > > > Thanks in advance.
> > > >
> > > > Rick J
> > >
> > > --
> > >
> > >
> > >                                 ____________
> > > Fun under the sun in          //~~~~~~~~~~~~\\
> > > Jacksonville, Fl.  :-)))     //______________\\
> > >                        /~~~---~   |      |   ~---~~~\
> > >                       /|    /______\____/______\    |\
> > >                     (( | /      |          |      \ | ))
> > >      Mako 'Vettes    | \============================/ |
> > >  Shift better with   |\ \\[  ]    |mrvette|   [  ]// /|
> > >      Automatics      | \/+========================+\/ |
> > >                      |~==============================~|
> > >                      |_____|                    |_____|
> > > -------------------------------------------------------------------
> 
> --
> 
>                                 ____________
> Fun under the sun in          //~~~~~~~~~~~~\\
> Jacksonville, Fl.  :-)))     //______________\\
>                        /~~~---~   |      |   ~---~~~\
>                       /|    /______\____/______\    |\
>                     (( | /      |          |      \ | ))
>      Mako 'Vettes    | \============================/ |
>  Shift better with   |\ \\[  ]    |mrvette|   [  ]// /|
>      Automatics      | \/+========================+\/ |
>                      |~==============================~|
>                      |_____|                    |_____|
> -------------------------------------------------------------------