Shift pressure vs. torque question

[MMGT1]

Was just reading in the v8 section about some of this. I got a little confused there. I think their tables must be different from ours? In one comment the table gets maxed @ 96% from about 320 and up. The most they will see is 400 usually. Now, with a V6 that hits 225(in the scanner) would I not set mine to 96% @ about 170 and carry that 96% to the end of the table? Now, mind you, the table goes to 640, which is nuts, because I will "NEVER" see more than 250.
Any input guys?
I don't have any values below 300 @ 96% if that helps

[stone]

You could log Delivared Torque and see what it maxes out and raise the pressure in that area.

For instance if your car puts out a max of 225...you could raise the pressure in the cells from 200 lb-ft and up to like 85....I was told that 96 isnt really neccesary..

You pretty much got it...

[MMGT1]

Also, what I see is the car will never shift at max torque. I'll hit max at about 4200 rpm(approx. 230 torque) but I shift at 6600. So I am thinking I need increased pressure at about 150-160(shift range) and leave the higher stuff alone?

[stone]

Yeah if you are only putting out 175 at the time of the shift, then you could raise those areas only like you are talking about...I would change the general area where your transmission shifts (150-175lb-ft) a little at a time to see how much pressure you need to get the desired firmness..

Just remember that if you mod the car significantly later on you will need to come back and lower those areas back down little if it shifts too firm at low to medium throttle positions...It might make the same power at lower throttle positions due to the increased efficiency of the motor...

You COULD raise everything from 175 and up, but you may not like how it shifts at part throttle, it may be too firm..

BTW if you car feels like it has power until 5000-6000 RPMs, but stops pushing you in the seat after 6000 RPMs, I would lower the shift RPMs to 6000....My '06 Silvy did that..It actually ran faster with a lower shift RPM because it kept the RPMs close to the peak power of the motor..

[MMGT1]

This cam has an awesome torque curve on the dyno. That allows the 6600 shifts, will be even nicer once I get some headers on this thing, but plan on the same shift points. here is a graph of the cam....

http://www.putfile.com/pic.php?img=3734972

That was a while ago. I was having some issues with fueling but you'll get the idea about the cam. Everyone who has seen this cam is very impressed with it.

[stone]

Wow I'd say yoi've got it then

Nice curve

[gman4dx266]

Russ Kemp has a badass way of setting shift pressures. It works very well.

I set the base shift pressure on the Impala by adding 0 psi @ 0 ft lbs torque and 60 psi @ 640 ft lbs. To do this first type in 0 to the 1-2,2-3 & 3-4 rows at the 0 ft lb column. Then type in 60 to the 640 ft lbs column. Now highlight the whole table and hit the Interpolate Between Horizontal Bounds button, copy this table, then click the Undo All changes button. Now using Paste Special > Add to the shift pressure table. The table will max at 96 psi by default at the high torque columns. This way you add allot of shift pressure at WOT, but just a little at low throttle. Of course you can change the pressure to suit your car/shift firmness.

And I zero out the 100 psi column of the force motor table just in case the shift pressure exceeds 96 psi.