Patrick,
Can't say that I'm into NASCAR, I wish I were.
I'm into the unusual or unknown, and Dodge certainly falls into this
catagory, seems that everying has been planned or done to Fords and
Chevy's. In my early days, I played with Top Fuel ( 392 1-A's) primarly.
I guess I'm showing my age. Boat engines, Rod engines, anything that
tends to be unusual. Favorite engine, Boss 429 Ford. Best production
Hemi ever built (and I use the term production loosly). Had my own
engine
shop (made a lot of money putting steel sleves in Vega engines). Today
Software Engineer. Engine controllers really interest me (the challenge
of understanding what the Powertrain GODS are doing and finding a
better way). Because of my roots, tend to believe that supercharging is
the
ONLY way to go. Really like the SB A-series engines. Just not enough
aftermaket R&D applied to them.
Frank
> -----Original Message-----
> From: Patrick and Kelly Engram [SMTP:shetland@erols.com]
> Sent: Saturday, August 01, 1998 6:27 AM
> To: Holloway,Frank T
> Subject: Re: moving distributor, injector sync.
>
> Holloway,Frank T wrote:
> >
> > Patrick,
> >
> > I did some reading and playing last night and I am even more
> confused
> > then
> > I was before. In the service manual 95 Section 8 It does talk about
> > injector
> > phase being controlled by the camshaft sensor located in the
> > distributor. And
> > indeed if you hook up the scan tool, you can bring up a screen that
> > tells whether
> > you are "within limits" and how many degrees you are off. You even
> have
> > and error
> > code associated with it "error 54 no fuel sync (camshaft signal)
> during
> > engine cranking".
> > My confusion centers around wether or not Dodge is using this sync
> > signal as the "primary"
> > source for injector phase. Dodge also uses a crankshaft position
> sensor
> > on the Magnum
> > engines. This sensor is used for ignition, and I would hope that it
> > would be used as the
> > primary sensor to trigger the injectors. It's a heck of lot more
> > accurate then the one in
> > the distributor (timing chain stretch, camshaft flex, etc). The only
> use
> > that I can see for
> > a camshaft position sensor, would be to locate number #1 TDC power
> > stroke, once located
> > there would be no need to even look at it. Remember crank turns at
> twice
> > the speed as
> > the camshaft. With the crank sensor, you would not know whether you
> #1
> > TDC power or
> > exhaust stroke. If you start the engine, you can actually un-plug
> the
> > camshaft sensor
> > and it still runs. The real question then becomes "after start" does
> > Dodge use the crank or
> > camshaft as the "primary" sync signal for firing the injectors.
> Only
> > the Dodge powertrain
> > Gods now for sure.....
> >
> > Frank
> >
> Frank,
> thanks for reading my message and actually understanding it! I've
> been on the dml for quite a while and there are only a handful of guys
> that can talk in the mechanical level that I can! It gets frustrating
> sometimes, but other times we can be of great help.
> You e-mail raises some good points and questions. I will look into
> this farther and get back to you.
> Are you into NASCAR?
> Patrick
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