Lately I have been paying more attention to my shift points than ever. One thing I have done is set my shift light to 3000rpms, and then just shift when it comes on, that way I don't have to stare at the tach the whole time.
I find if I shift earlier than 3000 I don't have enough acceleration to keep up with traffic some times. It seems that I frustrate other drivers around me if I accelerate any slower than that.
I am going to start recording some data as I try out different shift points via changing when my shift light comes on.
To those of you who don't have tachs. I bought this one for $25 off eBay and it works great. Not too large, not too flashy, and has a built in shift light that is easily adjustable. I would definately recomend getting one. I like to always know what RPM I am at.
P.S. When I autocross I set the shift light to 7300rpms and even then I hit the rev limiter from time to time.
Most of the time:
1 -> 2 @ 2900
2 -> 3 @ 2900
3 -> 4 @ 2200
This is normal city driving with the automatic. Usually, it'll shift immediately before the 3k mark and fall to just above 2k but by the time I hit overdrive I'm pretty much at 45 and need to let off. This was before the mechanics touched my car and fubared my cam timing. Now I have to be hard on it til it goes back in.
When I'm hard on it I'm limited by fuel cut at 6650 so I have it shift about 50 rpm before that mark.
Unfortunately I have to drive an automatic now incase my girlfriend she ever has car troubles and needs to drive my car. It's a 92 Saturn SL1, I usually can get it to shift into the next gear around 2000 rpm by feathering the throttle. 40 mph = ~1490 4th gear (top) with the TC locked up (I think).