another 747 bin

[CSH-HQ]

My first custom cross fire to 747 was for a manual tranny, so TCC was inop., 
cost one tranny in trying to diagnose.  Then he had the b---s  to want $50 
more to change it to a 700R calibration.  That's when I started burning chips.

  At one time I bought every aftermarket chip for a LG4 many years ago, and 
dialed each one in for air flow/metering, and timing, also tried all combos 
of thermostats, by chip.  What a huge waste of money.  Biggest average 
difference was gas mileage.  Turns out one of the stock gmers wound up 
overall faster, best drivability.

But, I have seen some $4-500 chips that did have alot of time in them.

Also, been funny to hear about how some magazine tests were done.

Not saying all the aftermarket stuff is trash, but, buyer be where.
Bruce

>The Fiero changes where in several tables.....but only from -40F to 8F
>range. 100 more HP in the Artic.
>
>Theft comes to mind.
>
>Terry
>----- Original Message -----
>From: CSH-HQ <nacelp at jvlnet.com>
>To: <gmecm at efi332.eng.ohio-state.edu>
>Sent: Saturday, August 07, 1999 6:48 PM
>Subject: Re: another 747 bin
>
>
>> Read enough, and you'll get real disappointed.
>> Run a 160dF thermostat and change fan turn on temps, weee.  $125 thank you
>> very much.
>>   Change BL + Int limits.
>> Turn off EGR
>> Increase knock limits, and more timing
>> Mental tuning, gosh I spent $250 so it's gotta be faster.
>> Also, remember me harping on back to back test cause seat of the pants can
>> be easily fooled.
>> Bruce
>>   No big surprise but all but Sleepy has called in
>>
>> >> >  It's amazing how factory calibrations can
>> >> > vary.  I have looked at a hypertech thermomaster for a 90 1/2 ton
>> >> > manual trans pickup, and compared it to the stock calibration it was
>> >> > replacing.  The _only_ value that was changed was closed loop enable
>> >> > temp, which had been dropped to allow closed loop with the cooler
>> >> > thermostat.  It was a little dissappointing to find that.
>> >> > Shannen
>> >> >
>>
>>
>