2.5L Iron Duke MPFI conversion.

[Joe Scruggs]

I still have an article about his work in an old magazine and it says
nothing about a mopar engine.  I'll try to dig it up to make sure.  In the
article and pictures I saw, he used a '79 Pontiac Sunbird with a 151.  He
made 2 hp per c.i. and over 50 mpg with his testing.  His intent was not to
make mega-hp V-8's but to get more hp out of smaller engines.  He claimed
there should be kits for the 151 within a year.  Well it so happened that I
had the same engine and same car -- I couldn't wait.  But nothing came out
and it was years before I ever heard anything again.  It turned out that he
sold the rights to his work to GM not too long after the articles came out,
but he had a condition -- GM had to implement it within a certain time
period.  GM was supposed to put it in a small truck (S-10, I assume), but it
obviously didn't happen.  Supposedly, Smokey was suing GM over this, but I
don't know anything about it after that.  I haven't heard anything else.

Still, I wonder if a similar concept could be used with injectors?

Joe

----- Original Message -----
From: "Bruce" <nacelp at bright.net>
To: <gmecm at diy-efi.org>
Sent: Friday, May 25, 2001 4:36 PM
Subject: Re: 2.5L Iron Duke MPFI conversion.


>
>
> I'm pretty darn sure the original work was on some Mopar 4 cylinder, and
> when it came time to go looking for some funding GM came up with some
money
> and engines.
> Ain't nothing special about an Iron Duke.
> Things fell thru over licensing, and when there was no more R+D money the
> program stopped.
> Bruce
>   **Best Damn Garage in Arcanum**
>
>
>
>
>
> > That 4 cyl engine that Smokey built was really something.
> > It was an idea along the same lines as the "100 mpg
> > carburetor" articles that appear from time to time.  But
> > Smokey's approach was a bit different.  Instead of trying to
> > heat gasoline then introduce the resulting vapor into the
> > intake charge, he drew fuel and air into the engine together
> > then applied heat.  The intake charge was kept under
> > pressure to prevent the expanding fuel from displacing the
> > air that was with it.  The engine ran at some incredibly
> > high temperatures and made 3 digit hp numbers.  IIRC, the
> > test vehicle shown in the magazines was a Fiero.
> >
> > Shannen
> >
> > Bruce wrote:
> > >
> > > > I'm playing catch-up with the group and I have a little input on
this
> > > thread
> > > > because of the death of Smokey Yunick this past weekend.  In the
early
> > > > '80's, Smokey was doing research on what he called the "Hot Air
> Engine".
> > > It
> > > > was the kind of work that a group like this would really appreciate.
> I'll
> > > > save the discussion of his technique later, but engine that he used
in
> his
> > > > research and fabrication was no other than the Iron Duke (151 cid)
is
> > > > relevant.  He chose the Iron Duke made by Pontiac because he wanted
to
> use
> > > a
> > > > 4-cylinder engine and, although not widely known, the Iron Duke was
> the
> > > most
> > > > successful engine in automotive racing history (at the time).  I
don't
> > > know
> > > > where he got his information, but he is (was) one of the most
> respected
> > > > engine builders and have no reason to question his facts.
> > > >
> > > > Also, there is some confustion about the 301 and it's history.  From
> what
> > > I
> > > > understand, the Iron Duke was the basis of it - not the other way
> around.
> > > > Pontiac liked the success of the Iron Duke and they believed they
> could
> > > make
> > > > an awesome V-8 by simply doubling it.  They weren't modifying a
> Pontiac
> > > 350,
> > > > but a 151 (yes, the math works out that it should be a 302, but I
> suppose
> > > > that Ford and Chevy already had a 302, so they called it a 301).
> > > >
> > > > This engine might be a very good engine to play around with for efi
> > > > projects, especially if you wanted to run a turbo.
> > > >
> > > > Incidently, I owned a '79 301-4V in a Firebird with a 4-speed and
had
> much
> > > > fun.  I outran many a Camaro with a 350 and auto trans.  I still
have
> one
> > > > sitting on an engine stand.
> > > >
> > > > Joe
>
>
> --------------------------------------------------------------------------
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