tuning q for 730 ecm

[timsiford at hushmail.com]

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.

Tim

At Tue, 17 Oct 2000 14:45:50 -0500, "Craig Marcho" <not_valid_email at airmail.net> 
wrote:

>
>>      For Race Apps , a switch can be wired in . Turn function ON/OFF.
>>     Street operation without TCC Lock inhibits ATF flow to cooler 
>causing
>>     toasted friction material on a longer term. Loss of MPG too.
>
>So for quarter-mile, it's best to keep the converter unlocked?
>
>I know on my '85 Corvette, there is a purple wire on a switch by the 
>brake
>pedal that I can hook a switch up to and kill the TCC lockup no matter 
>what
>the ECM is telling it. I'm thinking of doing this and disable the TCC 
>at the
>track. The wire is basically the feed to the TCC Solenoid and when the 
>brake
>pedal is pressed, it kills the feed, turning the TCC off.
>
>Craig M.
>
>--------------------------------------------------------------------
>--------
>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
>