I have ls1 edit. I also have a car that came with 2.73 gears. It now has 3.42 gears and a 3500 stall converter. Anyone have a similar setup? I'd like to look at your shift tables to see what you did to get it to shift correctly. Mine seems to be not wanting to shift from 2nd to 3rd at WOT until it bounces off the rev limiter half a dozen times.

I lowered the shift rpm to 5000 and the shift mph is at 69mph and it's still doing it. I'm asusming I just use the "normal" tab for tuning the trans since there is no performance button on the z28 thus I shouldn't need that table. And hot shoft is for when temps get high, right?

I can post my .ls1 file if someone wants to look through it, or if you can email me yours assuming you have the same gears and converter setup.

I just don't know where I am going with this...is it shift points causing problem? What about adjusting for converter slip?

Lost here... I need to know asap if it's a tuning issue or a mechanical trans issue.

 

I lowered my rpm threshold to about 2500rpm and have it shift by mph and not rpm. The rpm reading the pcm sees will not be correct because the increase slip of your stall convertor. It's not the same as what the tach on your dash reads. Imo; the crank sensor in OBD2 corrected this problem and so no more OBD1 high stall problems. Since you are OBD2; r u using a crank sensor?

Anyway, I would at least try it. Watch your rpm until you get your mph low enough for it to shift. If it works then great.

JD