I'm having my new built tranny done by Pro Built Automatics in SoCal. When I called, he asked me a question that I suddenly wasn't sure of.

What is the stock shift point on a 95 Z28? I said it was around 5700 or so, but I told him I wasn't sure. Either way he can look it up, but what is the stock shift point anyway? I can't go try it out to see, since my transmission is now slipping.

Anyway, he decided that for what I want to do with it (he's building me a taylor made setup suited to road racing) that a 2800 stall would be good (I like the 3.23s and I'm keeping them). Any guesses on how much a 2800 stall would drop my quarter mile ET at the drag strip? I'm thinking it should be pretty decent (4 or 5 tenths?) even though drag racing isn't going to be the main focus of my off road fun.

 

Tunercat shows 1st-2nd at 5344 rpm, 2nd-3rd 5440 rpm and 3rd-4th 5344 on my 94 Z28.

 

Going by the instrument rpm gauge, Mine shifts roughly around 6k, and a little less from 2nd to 3rd.