Speed Pro/ESC question

[Bruce Plecan]

The acoustic ones are stop gap measures at best.
Nothing readily available is anything more then that, from what I've seen.
Still boils down to tuning.
I think data logging with one is kinda neat, but I would never RELY on one
for engine protection.  If you agree with the above, then 1 is fine.
I've (for a true street engine) have found no lose in performance with
running 2d less then optimum.  So I do have a cushion.  Then with 15d of
possible retard, I'm covered for an ocassional tank of garbage gas.
I typically run 18 PSI on the GN, and have tickled the K/S twice, and have
just about as much performance as the tires will handle.   With as cold as
the streets are now I have it turned down to 15 cause of adhesion.
What I've done this time is have the systems in place for alot more HP, then
I intend to run, so just run a really mild tune.  Much easier to with a
Turbo system, then N/A.  I want more HP is just twisting the WG, and tuning
accordingly.  (Actually, I can control boost and mixture from my seat)..
So far I've been running the scanners probably 90% of the time the car is
run, but in the immediate future I see running a LED warning light for the
K/S.  Just as a double check for signaling a bad tank of gas.
  One other thought is running a GM K/S with a op-amp,  with an amplifier
design, to a comparator to trip the oem input to the ecm.  that way you can
tune it as you want.
  I also mentioned using a mid 80s ESC module.  On the Thrasher site they
specifically mention using the 86-87 Modules since they are 2 rather then 4
band sensitive.
Bruce





> On a related note... are there any ESC modules that have inputs for 2
> knock sensors? For that matter, should I even consider using 2?
> My project is a something in a turbo SBC using a DFI computer. I have
> the small block and the DFI, the rest is still up in the air.
> Rob_O
> Bruce Plecan wrote:
> > > 2) just how "tuned" are the ESC unit/knock sensor combos? What Harry
at
> > > Precision Turbo is recommending is a mid-80's turbo Buick (V6) ESC
> > > module, and this will be installed on a mid-80's Toyota turbo 4. These
> > > engines have different acoustical characteristics, but maybe this
isn't
> > > too critical since the system is using mid-80's technology?
> > > As always, I am appreciative of whatever input  anyone is willing to
> > > share.
> > > Jeff Moskovitz
> > When around Harry, I shut up sit down, and listen,  then ask as many
> > guestions as he is willing to answer.   He for sure knows his stuff.
> > I would up using a mid 80s ESC N/A v6 module for my SBC, when running a
C3
> > ecm
> > I would imagine it's slightly less sensitive then the others, based on
what
> > I've experienced.
> > There is a thing as being too sensitive.  Which is what my problem was,
I
> > had 0 trace of any detonation using the v-8 KS (87 GM 350 PU), with the
80s
> > ESC module.
> > Bruce

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