My biased opinions

[DC Smith]

Mike Pitts wrote:
> 
> >>I thought a few of you guys were working on a sequential
> >>speed density ecm to adapt to the buicks? sequential and
> >>DIS on a syty...ahh, that would be nice...
> 
> FelPro already worked on this.  8-)
> 

 If you've got 3 grand to plop down.


> I don't think sequential is "all-that" unless you are trying
> to make big injectors idle cleanly.  Or you don't like the
> hydraulic shock on the fuel rail associated with batch fire.
> FWIW: My GN runs alot better with a batch fire DFI than it
> does with the sequential OEM ECM.

 Good point. The fuel system is a "fluid" system, and we use
accumulators on things like that, to control shock. (kinda like the fuel
pump pulsator everyone, including me, pitches) 


> Adding wideband O2 capability to the OEM ECM...now that would
> be trick in my book!  Adapting a system which uses a large

 That'd be cool. Been wanting to do that, too.

> =====================================================
> 
> |>One thing I have always wanted to do, is to make the
> |>7148 ecm programmable, kinda like a DFI.
> 
> I think making the 7148 programmable is a waste of time.
> That ECM is so outdated it's pathetic.  Plus most of the
> ROM is permanently embedded (without MAJOR modification).
> 

 Hehe.. like usual, I do value your most biased opinion and comments,
Mike. I think you are one smart cookie, personally. :^)
 The thing I was looking at is the massive changing of the wiring and
sensors on the TR's, going to a different animal all together. If it
wasn't such a pain, I would have already been running my car on one.

> This is not a flame, it's just that I've been inside a
> newer P4 PCM and have "seen the light". Compared to C3's,
> the P4's rock!  It's like comparing an Apple-II to a
> Pentium-II.

 Kinda looked like that to me, too.  No flame taken. :)


> Personaly I am working with an 8625, which is similar to
> the 7749 but has electronic trans capability as well. I've
> even located some EEPROM in the MCU which was unused and
> have already written a code patch to place the VE table in
> that location and another patch to allow me to alter it
> from a laptop.  (ala: DFI-like capability)  But like
> Brian's 3-bar code, it's not ready for prime time yet.

 Very interesting! Gonna figure out the data logging side of things? Got
this figured out for your GN?  Keep me.. er.. us posted!

***********************************************************************
Dan Smith      84 Regal   12.13 at 112     GSCA# 1459
St.Charles, Missouri                
mailto:dcsmith at gnttype.org
http://www.tetranet.net/users/morepoweral
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