Blowers & the ECM

[Bob Wooten]

Your comment about my first clue was my first impression (I was talking with
Paxton).  then I called ATI & talked with them.  mind you the person @ ATI
seemed to be MUCH "more" knowledgeable than the person @ Paxton, but then
again more is soooo relative.

I agree about the need for Kludges sometimes.  I bet that the FMU's are most
accurate @ boost when it matters the most & they are hoping that the ECM is
going to keep the rest of it as clean as possible.  maybe I will cross that
bridge later, right now still on the steep part of the learning curve &
making time!!!!

in any case, I see your points, this is what I was figuring.  what this says
to me is if I am going to do it, to do it right or be just like the other
knowledge-less guys that send their car to a shop & hope that the
Manufacturers Eng. department did a good enough job that I am not going to
blow anything up.  I live by "go big, or stay home" so, gots to get a new
ECM & then we will see where we go from there.

Tanx Bruce.




-----Original Message-----
From: owner-gmecm at diy-efi.org [mailto:owner-gmecm at diy-efi.org]On Behalf
Of Bruce Plecan
Sent: Thursday, March 15, 2001 12:41 PM
To: gmecm at diy-efi.org
Subject: Re: Blowers & the ECM



The key to all the WOT stuff is having enough resolution to properly
calabrate it.  If you MAF (as an example) pegs at 255 at 2,800 then your in
trouble.   Because you going to have to run the same fuel when the MAF pegs
as at max load.  So at 2,800 you might be at 9.8 to have 11.8 at 5,600.
   This pasting of things together is from when there were no software clues
about what to do.
   Granted at times some Hardware Kludging is needed, just at this stage
using software makes it alot more tunable.
   His first answer should pretty well clue you in about where he's playing
from... <sigh>
Bruce



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