The PowerLogger can calculate torque converter slip. Here is how to enable that feature.
Tech details:
To know converter slip you need to know the speed of the flywheel (RPM), and the speed of the input shaft of the transmission. We don't have a way to measure the input speed, but the speedo cable is connected to the output of the transmission, so if we factor in the speedo drive gears and the gear ratio of the transmission we have what we need...
In PLC, the F3 Config and Download page, click on the Adjust button in the Analog Input Settings group.
put the following numbers in the CS factor boxes.
Second Gear: 75.50
Third Gear: 46.40
Fourth Gear: 31.00
Note that the ECM/PLC can't tell first gear from second, so the CS in first gear will be wierd...
Once these values are entered, CS will appear on the Graph page. This will show up and work even on old logs.
Bob
(edit, replaced my wrong numbers with TurboDave's numbers)
Tech details:
To know converter slip you need to know the speed of the flywheel (RPM), and the speed of the input shaft of the transmission. We don't have a way to measure the input speed, but the speedo cable is connected to the output of the transmission, so if we factor in the speedo drive gears and the gear ratio of the transmission we have what we need...
In PLC, the F3 Config and Download page, click on the Adjust button in the Analog Input Settings group.
put the following numbers in the CS factor boxes.
Second Gear: 75.50
Third Gear: 46.40
Fourth Gear: 31.00
Note that the ECM/PLC can't tell first gear from second, so the CS in first gear will be wierd...
Once these values are entered, CS will appear on the Graph page. This will show up and work even on old logs.
Bob
(edit, replaced my wrong numbers with TurboDave's numbers)
Last edited: