glen,
do not discount this system because of a single carb aplication. the early
injected fieros and pontiac 6000's used a single injector that sprayed fuel
into the throttle body(where the throttle plate is). i am willing to bet
that this type of injector would be easily adapted to the system design.
since the system will need to pulse the injector on an intake stroke it
already knows when to spray fuel. all that would need to be known is does
the injectoion unit alternatly pulse the 2 injectors according to which
cylinder is on an intake stroke or pulse them both at the same time. this
would tell which way the system would have to be modified to operate a
single injector. i figure that the system as it exists using a diode as a
guard against feedback to the computer on the 2 hot leads to the
injector(bringing a hot lead from each of the 2 injectors together) so it
would read a pulse for either injector feed. if the two injectors spray
atthe same time then you already can adaptthe system to a single carb.
aplication.
chuck
----- Original Message -----
From Glen Byrns <grbyrns at ucdavis.edu>
To: WFO Herb <froggi@cdsnet.net>
Cc: <spridgets@autox.team.net>
Sent: Tuesday, May 30, 2000 7:31 PM
Subject: Re: BEEFI update
> Herb,
>
> AARRGH! With so much of the normal 2 carb manifold retained, it looks
like
> this won't work out for my single SU fed turbo although I would love to
add
> EFI. Post turbo, my manifold has two branches. Perhaps the injectors
could
> be mounted into the two inlet branches? Also the manifold intake pressure
> sensor would be getting very different readings from a turbo equipped
> car..??
> Needless to say, I'm very interested and would love to follow
developements.
> I think most of the list would be interested in what you are doing.
>
> Regards,
> Glen Byrns
> '59 bugeye
>
>
> > Fellow Spridgeteers,
> >
> > This weekend, FROGGI ('60 Bugeye w/1275) hit the road for the first time
> > with his new fuel
> > injection system... BEEFI. For those of you somewhat new to the list,
> > BEEFI is an acronym for
> > BugEye Electronic Fuel Injection and is being developed by my son
> > Dustin.
> >
> > While a couple of "tweaks" are needed, the car performed surprising
> > well. The
> > engine started almost immediately and without dying a number of times
> > prior to
> > reaching operating temperature. It idled smooth and revved quickly when
> > we "bleeped" the
> > throttle. On the road, the car accelerated, pulled hard right up to red
> > line... and beyond
> > (Bugeye tach, 1275 engine)! Didn't even hesitated or sputter. This
> > thing works guys!
> >
> > Some time back, I reported that various sensors had been installed under
> > the bonnet. Sensors
> > supply information to the "brain" for fuel management. Sensors used
> > are: MAP (manifold
> > absolute pressure); throttle; temp and oxygen. Each plays an important
> > and significant role in
> > maintaining the correct fuel mixture throughout the engine operating
> > range and various driving
> > conditions.
> >
> > BEEFI is designed to be an affordable alternative for those wishing to
> > "clean up" their fuel
> > delivery system and eliminate the constant adjustment of SU or similar
> > carbs. No expensive
> > manifolds to buy... the base of the SU's are retained as mounting blocks
> > for the injectors and
> > also for their throttle plates. The float bowls are removed and air is
> > drawn from the top of the
> > carb body; where the piston and chamber normally sit.
> >
> > This is a DIY (do it yourself) system and as such requires some
> > fabrication and machine work.
> > The most difficult portion will be fabricating the fuel rail. A
> > junk-yard, Ford Bronco V-6 fuel
> > rail, cut/welded, is currently being used on our test car.
> >
> > Next time I'll write more on how and where the sensors are mounted, fuel
> > pump being used, fuel
> > pressure regulation and the injectors themselves.
> >
> > If you have questions, I'll try to answer them as well. Feel free to
> > e-mail me off list so we don't bore everyone.
> >
> > WFO Herb
> > Keep the sticky side down!
> >
>
>
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