Newbie help

[Andrew McRory]

On Sat, 14 Oct 2000, Shannen Durphey wrote:

> Andrew McRory wrote:
> 
> > 
> > Well thanks to all who replied!! I have the entire archive downloaded and
> > am getting up the strength to try and absorb ~20MB of text -wheee!
> 
> Yeah, the amount of info is definitely overwhelming.  I didn't send
> you to the archives as a brush off, and if you have specific questions
> feel free to ask.  Lotsa stuff gets covered lotsa times, so you may
> get a "look in the archives" type answer.  Specific questions get
> better answers.  Asking general questions like "what system should I
> use" can get a whole range of opinions and answers, enough to leave
> your head spinning.  Lotsa times, most of 'em are right, too. : )

Yeah, I really just want some pointers to sites where actual real life EFI
hackers have documented their experience and convresion.

> TBI systems are easier to relate to if you have an understanding of
> carburation.  TBI is a "bridge" between carbs and port fuel systems,
> and lotsa carby type thinking transfers to the understanding of tbi
> tables and operation (when you get to that point).  Lotsa first
> conversions are to TBI, just because the parts are usually much
> cheaper.  I've bought manifold/throttle body/ecm/harness together for
> $100, and that's a little steep for the good shoppers.

TBI definatley would be the easier choice except I'm hard headed and will
not be satisfied until I have the REAL DEAL(TM) multiport fuel injection
so why do it twice? :-)

> Get a general plan in mind first.  EFI is such a broad topic that
> you'll quickly get lost in it if you don't have a specific goal.  What
> are you thinking of converting?

Well I have this 1972 GMC Jimmy 4x4 that has been my project for the past
3 or so years. I have the mechanicals in good order all except for the
induction system.... The old quadrajet has seen it's day with worn
throttle shafts, needles, jets and I don't want to replace it. I'd rather
spend the money on some type of high-performance EFI system using factory
parts if possible.

I had thought of modifying a single plane manifold (have end mill will
travel) but factory TPI seems much easier. Did I mention TPI looks cool?
Naaaah nevermind!

Back around 1992 I swapped 1985 5.0 EFI truck engine into a 1972 F100 and
it was a real sweet setup. The truck still rides today. But it was a stock
engine with a factory wiring harness -no sweat to install. The wiring was
a snap with a switched hot wire, a ground and a constant hot wire.
errr.... something like that anyway... all I needed was a Haynes manual
with a wiring diagram (hey! Haynes is good for something :)

So now the reasone for my plea for help! From what I've seen so far there
is a myriad of ECM/PCM to choose from not to mention MAF/MAP systems 8 and
9 injector systems. The junk yard I'm fond of doesn't have any of the
popular number ECU I've seen (747, 165, 730). Will any ECU have the
necesary functionality with a reprogram?. Am I making this too
complicated?

On top of all this I'm kinda impatient.. errr, so I want all the answers
now *:o)


Andrew McRory - President/CTO        amacc at iron-bridge.net *****************
The PC Doctor, Inc.                  www.pcdr.com            850-575-7213 **
Iron Bridge Communications, Inc.     www.iron-bridge.net     850-575-0779 **
Contributed RPMS for RedHat and Caldera   ftp://ftp.iron-bridge.net/pub   **
****************************************************************************







----------------------------------------------------------------------------
To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org