[Diy_efi] Olds 403 MPI - was (no subject)

[Rick McLeod]

Let me clarify: TPI is a very specific 'long runner
raised plennum' design that has a very unique intake
manifold as part of the runner design. This is not MPI
or multi-port injection where there are injectors on a
more-or-less standard intake manifold using a
carburetor-like throttle body. Obviously, an Olds MPI
manifold/th-body solution would work, but that is NOT
TPI by definition, which is a very specific intake
design for MPI.

That said, I agree the easy route would be to adapt an
Olds MPI, then the question is what to controll it
with.

--- Tom Visel <five10man at commspeed.net> wrote:

> Dunno about the familial relationship of 403 and 350
> Oldsmobiles, but as 
> a (thankfully) former owner I can testify: '78
> Sevilles had a 350 
> Oldsmobile engine, port injected with a central
> throttle body.  Monster 
> PITA as I experienced it with my limited knowledge
> back then, but one 
> might serve your needs.  I believe there was an Olds
> right about then 
> that had the same awful-looking trunk abortion, and
> it had the same 
> engine AFAIR.
> 
> TomV
> 
> Phillip Kuhn wrote:
> 
> >Okay, I am a bit confused about the topic but from
> >what I gather somebody is wanting to make a TPI
> olds
> >motor ? If this is true I believe that there are
> some
> >late '70's cadillacs that had an oldsmobile engine
> >(350 I believe) with Port fuel injection on them I
> and
> >believe they were sevilles. The fuel injection
> itself
> >is crap but the intake would be desireable as it is
> >configured for such and would bolt on also the fuel
> >rail would be a great piece to have too. Now the
> >tricky part is these cars are pretty rare nowadays
> and
> >finding one would be quite difficult I assume. I
> did
> >run across one a while back but I have no clue
> where
> >it is now though. I saw a 403 mentioned, if it is a
> >403 then I believe the intakes will swap and a lot
> of
> >other external parts will too. The 403 had a few
> >different internal parts due to the enormous bore
> >(4.351 inches I think) they stuffed into a "small
> >block" . Hope this helps............
> >
> >
> >
> >		
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