tuning q for 730 ecm

[Bruce Plecan]

I think tis easier then that.
Autos give you addition torque multiplication (via converter), but the down
side is slippage (slippage is a waste of heat energey).
Not wasting this heat energy gives ya some HP.
Depending on converter, this slippage can be 7-15%.
Down side, is all that more inertia to change speeds SUDDENLY during a gear
change.
Bruce





> Heres what I think the reason is it works for some and not others:
>
> TCC lock at the track works to better the ET if your setup makes more
> average power at RPM's BELOW your normal auto shift point with TC unlocked
> (or if your setup makes more average power below where you MANUALLY shift
> your auto trans and you didn't realize it.). If you can lock the TC at
your
> peak power it serves to extend or flatten the power curve as it holds peak
> RPM for a longer period. Think of it as a switch that changes your 3.73's
> into 3.42's (well, to illustrate anyway). Use the 373's for takeoff and
> switch to 342's to keep your 1/4 mi RPM's from extending too far above
> average peak power.
>
> If yer gonna lock it, Dont lock it at too low a RPM if you make more power
> in the upper range.... you're just delaying the good R's arrival.
>
> Locking it is cheating.. whereas N2O, for example is "natures" mod  LOL
;-)
>
> My $0.015 Now back to your regularly scheduled EFI content.
>
> ----- Original Message -----
> From: <ECMnut at aol.com>
> To: <gmecm at diy-efi.org>
> Sent: Tuesday, October 17, 2000 4:54 PM
> Subject: Re: tuning q for 730 ecm
>
>
> > Sorry for the earlier blank reply..  The TC lockup works for my syclone.
> > good for about a tenth in a 12 second truck with stock trans &
convertor.
> > I have a drawing for which adld pins to short.
> >   http://www.enzoco.com/mike/syclone/lockup.htm
> > Crappy sketch, but someone from the F-Body list must have liked it, as
> > he scarfed it and put it on his own page.  Very simple.. You just short
> the
> > outside top row pins on the aldl connector together..  The TCC locks in
> > any gear but first.  It unlock if youtrip a brake pedal switch, or
return
> to
> > firsr gear.  If you like boost, this tends to shorten TC clutch life.
> > Cheers,
> > MV
> >
> > >  I think that its hit or miss whether you lock the TC or not for track
> use.
> > >
> > >   A LOT of GN guys lock the TC.  This is why Precision Industries
> created
> > >  TC's with multi-clutch designs.  There's a group of people who will
> swear
> > >  that they gain 0.1 and 1mph for locking up the TC in all gears above
> > first.
> > >   So - when the car hits second the TC locks.  Some people have tried
> this
> > >  'trick' and not seen anything.  There's even a couple magazine
articles
> > >  which show car gaining a tenth by manually locking the coverter above
> > first
> > >  gear.  I personally have never tried it.  However, I might try it
this
> > > weekend
> > >  for shits and giggles to see if it works.
> > >
>
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