'98 Vortec 350 - Good swap into a Jeep?

[Shannen Durphey]

Yeah, I wonder if marketing is at work there.  Basically, you have a
distributor minus pickup coil, reluctor, and module.  If that means
you are running a distributorless system, then a crank triggered MSD
ignition system is also distributorless.  
Shannen
CSH-HQ wrote:
> 
> It's not distributorless in the sence that you might be thinking.  It has a
> dissy type housing.  You  ought to get the gm manual to see it.
> Bruce
> 
> >Shannen,
> >Ward,
> >       I didn't realize the 98 Vortec was distributorless. That
> >would be a problem with compatablity in the old PCM's. I
> >would assume that running a 747 would require adding a
> >distributor or modifying the 747 Code. Do any of the 747
> >Proms support a distributorless engine?
> >
> >               Ken
> >
> >Shannen Durphey wrote:
> >>
> >> Ken Kelly wrote:
> >> >
> >> > I'm confused by all the comments on changing the intake,
> >> > etc. Using a Non-OBD-II computer does not require
> >> > changinging the intake manifold and Fuel system.
> >> >Any of the
> >> > TPI or later electronics could be used with the existing
> >> > Intake.
> >> Requires it?  No.  I was showing some options for cost effectiveness.
> >> Do I know whether the Vortech engine he's looking at is complete w/
> >> manifold?  No.  Will I say the only way to go is with the Vortec
> >> manifold?  No.
> >>
> >> > What was the 95 computer used in
> >> > chevy trucks? Is it compatable with the wiring harness?
> >>
> >> Is the 95 PCM plug-n-play with 96 harness?  Nope, it's not even
> >> close.  The 95 pickup used a dizzy based tbi system with the 16197427
> >> PCM.  Talking auto trans, 1/2 ton, 350 engine.  Vortech engine uses no
> >> distributor (technical point), crankshaft sensor, sequential pfi.
> >>
> >> > Using a 730 or 747 would be a lot more work because of all
> >> > the custom wiring required,
> >>
> >> Depends on your idea of work.  Modifying a harness one time can be
> >> less work and frustration than multiple attempts at modifying ecm
> >> tables.  I would suggest to a novice using a setup close to an
> >> existing calibration to start with.
> >>
> >> >although you may be able to use
> >> > the harness and most of the sensors off the old TPI system
> >> > if the locations are similar.
> >>
> >> Vortec units are different from previous pfi systems.  Physical
> >> changes to the wiring harness should be a minor issue, though.
> >> Shannen
> >>
> >> >
> >> >         Or if you are running stock
> >> >keep the whole Vortec system.
> >> > Remember this means Cats, after cat O2 sensors, etc. It does
> >> > get tricky. There are some people out there making O2
> >> > simulators for the AfterCat O2 sensors, but by the time you
> >> > get done modifying the 99 PCM to get rid of OBD-II for your
> >> > Jeep you may be one of the List experts on the Vortec!!
> >> >
> >> >                 Ken
> >> >
> >> > > > I guess I'm asking for HELP and recomendations.  I've done engine swaps
> >> > > > before, I just have NO experience with a VorTec System.
> >> > >
> >> >>  For simplicity, you may want to consider using the new
> >> > > engine with an older computer and maybe the fuel system.
> >> > >
> >>
> >> > > Shannen
> >