Any of you out there changed the shift times? (Not shift speed but shift times) Does it work? Anything to be gained?

Tranny is a Pro Yank w/ SY3500.

 

I beleive that controls the time it takes to signal the shift solenoid. I don't think it will effect performance, but setting it to zero should make your tranny shift sooner. If you change it you'll probably have to reset your shift points a little.

I wonder if setting it to zero would clear up the solenoid stuck open codes some people get.

 

I found small changes (les than 0.1s or so) to be pretty noticeable with the stock converter, less so with a SY3500.

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by ToplessTexan:
<strong>I found small changes (les than 0.1s or so) to be pretty noticeable with the stock converter, less so with a SY3500.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">That's interesting. Looking at my PCM, in the normal mode, most of my values are around .5; in the performance mode they are all zero. That's why I thought that it could be set to zero.

 

Joel, I think our performance mode tables are zero because we dont have the "Performance Shift" option switch on our cars. At least I dont. My buddies 94 LT1 had it though.

I took my TM tables down to zero and figure I might just drop the shift times down to about .2 and see if I can tell a difference.

 

Chris:

Could be. My performance shift tables are filled in; they match the normal mode.

Let us know what happens. I wonder if you'll shift earlier.

 

Chris:

Did you experiment with it?

 

Joel, I took the 2-3 shift times down to .250 but didnt notice any difference. I did however try and trick f**k the tranny as far as TM goes though. I put the spark retard table limit to +10 vice -10 and felt a HUGE difference during shifts. No more nose over. Ken K really needs to figure out that bug in Edit. I ended up running a new best of 12.41 @ 109.5 and I still havent put the TR 224 in the car yet.

 

Thanks for the update. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Drop Ken an e-mail with your info. If enough people let him know, maybe he'll get a fix.

Congrats on the new best.

 

Sent him an email last week. No reply yet.