4l80e forcing third gear mod at the track (sloppy trans brake)

well it works! i am happy to report it works really really well haha
the track was just not there tonight, non prepped friday night, couldn't hold anything.

here is a clip of a data log showing i could hit 4600rpm and 15psi at the line!

long video of the night

short video of just the lass pass and 3rd gear mod working