[Carl Summers]

Joe Boucher wrote:
> 
> > >
> > > Mr Guru,
> > >
> > > Are the GM TBI injectors tuneable?  Someone posted the discovery of
> > > three small spot welds around a screw on the centerline of the
> > > injector.  Looks like an adjustment screw.
> 
> [snip]
> 
> > > Joe Boucher
> > > '70 RS/SS Camaro  '81 TBI Suburban
> >
> >   Joe, No problem with the info part.  go to   www.lindertech.com for more and will
> > post more there as time goes on.
> >
> > The tbi's are somewhat tuneable bu by the time you break the spot weld and mess with
> > them it is usually not worth your time.
> > Remember the injector is told what to spray based on a map of opening s in ms. So
> > actual flow change , against spring tension only has large effect at wot and even
> > then questionable.
> > There are many different flow rates of tbi units for different engines.
> > We stock these units and flow them on a test bench.
> > Would flow a set and try for more fuel if ya have a extra set to experiment with
> > though.
> >
> > Jim Linder
> > the injector " guru"
> 
> So, Gm didn't spec one size TBI injector and screw it in 5 turns for a
> 4.3, 4 turns for a 5.0, 3 turns for a 5.7, 2 turns for a 454, and one to
> no turns for a God-knows-what, in other words.
> 
> Cool, that's what I was after.
> 
> Joe Boucher
> '70 RS/SS Camaro   '81 TBI Suburban

I have a pretty good source for  new 454 (TB) injectors $100. If anyone
is interested........Carl Summers---Innovative Technologies (IN-TECH)