This page is here temporarily until we find out what happened to Joe...
What is VEMaster?
VEMaster is a program that will take a datalog and make some statistical computations based on the running characteristics of your motor. It will take a TTS Datamaster (and possibly Freescan) data log and make adjustments to the Volumetric Efficiency tables in a .BIN file based on your block learn values at partial throttle.
What is VEMaster not?
VEMaster is not designed to make changes above 3000-4000 RPM (depending on what you set it up to do). It is intended for partial throttle driveability only, not wide open throttle. The PE VS RPM table is there for WOT adjustments.
How much datalogging?
Get the engine warmed up and in to closed loop, and then start your datalogging. Drive around at partial throttle, around town, for maybe 15-20 minutes. Then run VEmaster on your .BIN file.
.BIN file? I have a .LT1 file!
You need to convert your .LT1 file to Tunercat .BIN format before you can run VEMaster on it. To do this, you need to run the program Tuneconv on it (hit the link to download). You will then need to convert the .BIN file *back* to a .LT1 file in order to load it back in to your PCM with LT1_Edit.
How many times to I "iterate" with VEMaster?
You need to iterate until your block learns are settled in at 122-125 or so. I personally like 122-125 so that when I go to WOT, my block learns jump to 128. If you are above 128, the block learns will stay there, and you could conceivably run in to a split block learn at WOT, which isn't necessarily bad, but it isn't necessarily good either. The iteration process may take 2-3 times, it may take 7-10 times, just depends on how far out your VE maps are.
When can I start using VEMaster?
You need to make sure that your block learns aren't too far split (one of them at 150, one at 125 is not good). You need to make sure your car is in good tune, NO exhaust leaks, nothing interfering with the readings of the O2 sensors or the block learn values. They should be pretty close together before you start using VEmaster. If they are 134/139 that's probably good. If they are 108/160, that is bad, and you need to fix your car. VEmaster will not adjust for that.
Download VEMaster by clicking here
Disclaimer: I've not used VEmaster yet, so I cannot answer exactly *how* to use it. ;^) I'm just hosting the software while Joe is moving or whatever he's doing. :) Thanks Joe!