line pressure
There are a few different ways that can be done. The easiest way to figure it out is to open a stock file and compare differences. That will tell you what tables have been changed. If you don't know how then post the file and I will look at it.
Tampa Tuning Camaro Corvette GTO GM Trucks performance tuning Go to the transmission tab/ auto shift properties/ Click on shift pressure.
If I increase line pressure, I increase it 5 pounds at a time till im happy.
www.TampaTuning.com
Phil
If I increase line pressure, I increase it 5 pounds at a time till im happy.
www.TampaTuning.com
Phil
what is the limit on the pressure for those tables. I know it is kind of hard to answer that question cause the warmer the fluid gets the higher the pressure is.
I cant seem to get the shift firmness that I want. Does some of that have to do with the servo also?
I cant seem to get the shift firmness that I want. Does some of that have to do with the servo also?
No, actually, the colder the fluid is the higher the pressure is... there are tables that compensate for temperature as well. The firmness can be effected by the condition of the transmission as well - you can jack the pressure way up on a worn out trans and it won't be firm...
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Stock for what? GM programs different line pressures for almost every MY and vehicle. Do you think performance transmissions are built different depending on what the stock line pressures are for that particular vehicle?
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Verdad Gallardo If you compare them, stock pressures are not that much different - no, they aren't built different depending on what the stock line pressure is. The point is if you run elevated line pressures in a built trans you will break ****...
Then you must not look at too many different platform files. There is as much as 12 PSI difference just between 98 and 02 F-body tables in the middlre of the tables and the GM trucks can vary even more. Just between Denalis and Silverados of the same MY there can be big differences in the pressure tables. Silverado SSs and Hummers will have a lot higher stock pressures than regular trucks.
This trans info is great. I am not a guru but if you have a rebuilt trans with the best planetaries and the beast sun shell, wont those hard parts handle a little harder shifts. That could be a dumb question. If it is, sorry.
No, actually, the colder the fluid is the higher the pressure is... there are tables that compensate for temperature as well. The firmness can be effected by the condition of the transmission as well - you can jack the pressure way up on a worn out trans and it won't be firm...
The trans is rebuilt with probably about 5k on it.....everything has been upgraded except for the servo. There was no trans kit put in it. Only thing for the valve body was the intermediate servo release check valve and was drilled out to the size per chart that came with the rebuild kit. Think is was 0.028 or something like that.
