TBI cam duration

[rr]

Actually, I'm planning to eventually go to a Torker single plane (have one),
and port injection. Might stay with the '747, might do to a '730, don't know
yet. '730 has definite advantages.

Right now, I have a Performer RPM (dual plane) on the car, and a 5.7L TBI
ready to bolt on. Have a Bosch high pressure inline pump to plumb. I'd do
a '730 and port, but adding drivers for a TBI is a pain. Right now I'm in a huge
time crunch (have been, otherwise I'd be injected by now).

I think this is the second time in a couple of days you mentioned a vacuum
referenced FPR for a TBI. I'm not sure of the reason for it, as your adding
another tuning variable. Fuel pressure and injector flow changes with manifold
pressure. In port injection it's done to eliminate a tuning variable.

You know', one of those Smokey cross ram jobs would be kinda cool
with dual two-bbl TBI's. You wouldn't know where I could get one,
would ya'? <g> I could easily go this way.

BobR.

CSH-HQ wrote:

> Just for dumb ideas, if your running a TPI level of fuel pressure, why not
> use a vac referenced fuel pressure regulator, a set of P+H 4/1, and a 730.
> Then just consider it a wet manifold TPI.  If running a single plane I don't
> see where the firing rate of the injector would be as critical (please note
> I have my CSH, with chinstrap on).  Specifically I looking at a cross fire
> set of TBs on a vintage Smokey Ram manifold.  Only real advantage is when
> using diacom.  OK, better/more tables, then 747 in a way.
>
> On a similiar not has anyone tried just clearing as many tables out of a 730
> that aren't used for off-road applications?.
> Grumpy
>
> At 07:27 AM 11/7/99 -0500, gmecm at efi332.eng.ohio-state.edu wrote:
> >Thanks for the info Walt, this solves the problem of getting enough
> >fuel into the engine. When I get some time I'll be putting a TBI
> >on to complete the conversion. Need to install the fuel delivery
> >system first.
> >
> >BobR.
> >
> >For peak driver boards, the 332 group has a schematic & layout.
> >
> >Walter Sherwin wrote:
> >
> >> >
> >> >I've wondered about doing this (rasing the fuel pressure). Did
> >> >GM do anything to the new TBI's  to hold the additional pressure
> >> >without leaks? Or, are we safe doing it to the older ones? (89-91)
> >> >
> >> >Thanks for the gm #'s.
> >> >
> >> >BobR.
> >> >