[DeTomaso] MSD fuel injection

[Don Franck]

As Kirby pointed out, I was an unhappy EFI owner for a long time.  There
were many reasons with the top one being a constant communication problem
between my computer and the ECU.  I am lucky in that Kirby lives near by
and is willing to help.  He came down a couple weeks ago and worked on  it
for about 2 hours.  GOt it very close.  Once there, I can at least drive
around without fear of hurting the engine.  I am having fun again.  Got the
car inspected for the first time in over 2 years.

I do not have the personality to go EFI alone.  I am a thrasher.  You know
the type.  If an adjustment of .1 is good, then an adjustment of 2.5 would
be MUCH better.  Now that we are close, I know to adjust one parameter at a
time and let it run for a while.  Make small adjustments.

Of course it helps to have Kirby close by.

Don


On Tue, Mar 12, 2013 at 3:10 PM, <gow2 at rc-tech.net> wrote:

> I think the big part of Carbs getting a bad rap is how they are tuned. An
> EFI system are usually tuned with a timing and O2 reference. A carb is
> generally tuned with seat of the pants reference. Add an O2 and work more
> with your timing and success tuning a carb is greatly advanced.
>
>
>
> > " Still doesnt run as well as my carb'd engines"
> >
> > My $0.02: Don't get EFI because the throttle
> > response/driveability/power/whatever is not satisfactory with a carb. A
> > well-tuned carb engine can do all those things as well as an EFI engine.
> > And
> > EFI is more complex and more expensive. Now, there are arguments to
> > getting
> > EFI of course. It normally lowers fuel consumption and pollution. And it
> > stays "in tune" longer than a carb. But it can also leave you stranded.
> > Lots
> > of pros and cons. But don't get EFI because your carb (or ignition
> timing)
> > is out of tune. Fix it.
> >
> > Of course there's one big advantage to EFI compared to a carb that appeal
> > to
> > a lot of us I think. It's a new challenge. This is a community that likes
> > to
> > try something new and different, right?
> >
> > Mikael
> >
> >
> > -----Oprindelig meddelelse-----
> > Fra: Justin Greisberg [mailto:justingreisberg at hotmail.com]
> > Sendt: 12. marts 2013 00:02
> > Til: detomaso at poca.com
> > Emne: [DeTomaso] MSD fuel injection
> >
> >
> > I still am the voice of reason in the EFI discussions.  I have been
> > working
> > with my Retrotek EFI system for 4+ years now.  Still doesnt run as well
> as
> > my carb'd engines.  I am making progress, and I hope that one day I will
> > have a really nice setup.  But I would never do it on another vintage
> car.
> > And there is nothing plug and play about it.  I still have not achieved
> > satisfaction in cranking, cold engine running, and idle.  i have not yet
> > really worked on acceleration much at all.  With a chassis dyno and an
> EFI
> > system and some time, it is possible to really do some nice stuff.  But
> > without a chassis dyno, becomes more tedious.  And the various settings
> > and
> > controls are not so intuitive and not so easy for an interested amateur.
> > MSD system looks more or less comparable to FAST EZ EFI and retrotek
> > (professional products).  The ACCEL DFI looks even more confusing to
> me...
> > justin
> > P.S. - a big problem with the pantera is that, if the engine does not
> > catch
> > on the first try with the starter, you have to turn ignition to off and
> > then
> > on again to crank the starter again.  In some, maybe all, of these
> > systems,
> > ignition off starts a process of resetting the idle control motor.  That
> > takes maybe a minute or so, but there is not outward indicator of the
> > process.  If you dont give it that full minute, then when you re-crank,
> > the
> > idle motor is not in the right position and the car wont run right the
> > entire time it is running.  Ask me how many years that took me to figure
> > that out....  that is the kind of thing you discover when you try to make
> > these things work.  justin
> >
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-- 
Don