Dual TBI units

[Alexander Pikas]

Allright guys.  The quiet are speaking.  I'm fairly new, and have only been
reading until now (mostly because I'm a Ford guy, but I'm running a Haltech
on my car).  I had dual TBI (actually Ford refers to them as CFI) units on
my '85 LTD LX, controlled by the stock computer, with 4 32lb injectors
(stock were 48).  With tapping the FP regulator and tweaking the pressure, I
was able to run the stock program, and pass a sniffer test.  Driveability
was perfect.  Only thing to note was the violence of the combo.  A little
bit of throttle application resulted in alot of acceleration, because of the
increase in surface area.  I only used one TPS sensor, rigged up a linkage,
etc.  It looked pretty cool, too.  I've got some pics of the old setup if
you'd like to see 'em.

alex
(I hope turned off all the stuff I was supposed to - if not, I apologize in
advance - it's my first post, you know... ;-)

> True...But I'm referring to TBI..Throttle Body Injection, not TPI.  I want
to
> be able to run two TBI units on a dual quad style manifold, not a port
> injection engine.  Port injection is not an option for this buildup.
>
> Estimated hardware cost is under $300, including the dual quad manifold.
>
> I can't believe this hasn't already been though about and either done
> successfully or deemed impossible...And I SERIOUSLY doubt the collective
"you"
> would deem anything impossible judging by what I've seen discussed around
here
> over the past 6 months or so since I subbed.
>
> Stephen Cranford
>
> > Those 305 TPI TBs are 49mm I think?  For 400 real HP 2
> > of those are way overkill.  One larger one (52mm or
> > 58mm) would do fine.  Or you could get a 4-bbl TB (w/o
> > injectors) from holley, force-efi.com, or accel for
> > around $350-$450 complete with IAC and TPS and
> > progressive linkage.
> >
> > Squash
> >
> > --- Stephen Cranford <cranford at texas.net> wrote:
> > > Hmmm...Lots of interesting ideas.  But maybe I
> > > should have been a little
> > > clearer on our proposed setup.
> > >
> > > Two stock F-Body (90-92) 305 TBI units mounted on
> > > adapters to fit a dual
> > > quad manifold controlled by a reprogrammed ECM.
> > > Hopefully by doubling the
> > > potential airflow and fuel capacity, we would be
> > > able to supply a healthy
> > > 400.  Stock throttle bodies from a 305, stock
> > > injectors, nothing modified.
> > >
> > > Just trying to come up wit ha cheaper alternative
> > > for higher airflow/fuel
> > > capacity than spending $1300 on  a Holley 4Di setup.
> > >
> > > --
> > > Stephen Cranford
> > > http://austin.f-body.org/members/cranford
> > >
> > > http://cranford.home.texas.net
> > > 92 RS Sapphire Blue w/Purple Pearl & White Stripes
> > > 89 IROC-Z28 Red w/black hood
> > > "I am not suffering from my insanity...I'm enjoying
> > > every minute of it!"
> > >
> > >
> >
> >
> > =====
> > Trains, Trucks, and EFI at http://www.elknet.net/squash
> > __________________________________________________
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>
>
>