[s-cars] SOURCE needed for 45or47 high Z , bosch or siemens

[Tom Mullane]

I was trying to diagnose an overboost issue that drove me crazy for months.
After eliminating everything (and I mean _everything_) else, I decided it
was the custom MRC chip.  I bit the bullet and bought the RS2 MAF and
injectors to try another chip.  Problem solved.

I liked the MRC tuning, but exploring the mechanical limits of my boost
gauge on a regular basis was unnerving.  Once the problem was found, MRC was
quick to provide an updated chip, but since that chip was based on a custom
tuned chip that was changed several times for various reason (more timing
for FMIC, leaner mixture, etc) I felt that we had strayed too far from the
original tuning to be safe.  Not to mention that there was obviously an
issue with the original tuning upon which all these changes were based. I
never installed the update.  I should probably send all my various
iterations of my chip back to Bob in trade for an MRC standard chipset that
will run the Delphi Injectors and stock MAF with RS2 turbo.  I liked that
setup and would go back.

Tom

On 10/17/06, Alvin Labonite <alabonite at gmail.com> wrote:
>
> I am running MRC RS2 btw and so does Tim.
>
> Tom, didn't you switch to RS2 injectors? for what reason?
>
>
> On 10/17/06, Tom Mullane <tmullane at gmail.com> wrote:
> >
> > Alvin,
> >
> > This is why I took little stock in the comments on AW.  It's difficult
> > to separate the injectors from the software using when looking at anecdotal
> > "data".  No saying it isn't useful, but it is hard to draw firm conclusions.
> >
> >
> > Tom
> >
> > On 10/17/06, Alvin Labonite <alabonite at gmail.com > wrote:
> > >
> > > I just installed my D/L intjectors last night and obviously i have not
> > > had the RS2 or replicas before so I couldn't compare the idle difference.
> > > But one of these days I will take it for emissions test and see.  Wasn't the
> > > people that initially did the testing were from CA which has stricter
> > > emission requirements?
> > >
> > > Tim (repeater on AW) on the other hand said he passed with flying
> > > colors in TX.
> > >
> > >
> > >  On 10/17/06, Theodore Chen <tedebearp at yahoo.com > wrote:
> > > >
> > > > tom,
> > > >
> > > > your timing was good, because injectors and chip are next on my
> > > > shopping list.  it's pretty hard to find things in the archives now,
> > > >
> > > > so i'm glad you asked the question.
> > > >
> > > > craig, are the delphi injectors actually that poor or just not
> > > > designed
> > > > for this application?
> > > >
> > > > -t.
> > > >
> > > > --- Tom Mullane < tmullane at gmail.com > wrote:
> > > >
> > > > > Sorry to revisit the issue, folks.  I had seen the AW posts, but
> > > > usually
> > > > > take little stock in AW; this list is much more technical and
> > > > generalities
> > > > > do not stand long here without challenge.  I must have slept
> > > > through Brian's
> > > > > posts.  Due to unrelated I dumped my Delphi injectors and related
> > > > chipset a
> > > > > year ago in favor of the "real deal" - RS2 injectors.  No issues
> > > > at
> > > > > emissions in CT.
> > > > >
> > > > > Tom
> > > > >
> > > > > On 10/17/06, lebakken1 at netzero.net < lebakken1 at netzero.net> wrote:
> > > > > >
> > > > > > Tom asked:
> > > > > >
> > > > > > Inconsistent spray with the Delphi injectors?
> > > > > > Did I miss something?
> > > > > > Can someone provide a link or info?
> > > > > >
> > > > > >
> > > > > > Tom - the main info is from an email from Brian Powell about a
> > > > three
> > > > > > weeks to a month ago. He did some testing with the new 034 RS2
> > > > > > equivalent injectors, as compared to Delphi. There are issues
> > > > with
> > > > > > the Delphi injectors, physically, with the nozzle design, and
> > > > also
> > > > > > perhaps internally with the solenoid performance and its
> > > > compatibilty
> > > > > > with Bosch Motronic input. The result is poor performance at
> > > > light or
> > > > > > no engine load, with excess fuel being delivered, and subsequent
> > > > OXS
> > > > > > derived CEL's. There is probably excess fuel (or poorly atomized
> > > >
> > > > > > fuel) being delivered under load as well, as evidenced by sooty
> > > > rear
> > > > > > bumpers.
> > > > > >
> > > > > > The biggest problem comes when you have to get the car through
> > > > > > emissions - and can't. I had to put my stock injectors back in,
> > > > limp
> > > > > > out to the car butt sniffers, pass the car with flying colors,
> > > > and
> > > > > > then but the Delphi's back in to get it to run properly with the
> > > > RS2
> > > > > > programming.
> > > > > >
> > > > > > I had a bad feeling when I was putting Lucas/Delphi injectors
> > > > during
> > > > > > my RS2 conversion. I always do when using non Bosch/OEM parts.
> > > > This
> > > > > > is why.
> > > > > >
> > > > > > Use RS2 or at least the 034 equivalents. Use the Delphi's on a
> > > > small
> > > > > > block Chevy. Or something. Like watering plants.
> > > > > >
> > > > > > HTH
> > > > > >
> > > > > > Craig Lebakken
> > > > > > 94 S4
> > > > > >
> > > > > >
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