EFI RWHP and EFI RWTQ

[DmaxHawk]

Hey guys, I've been reading about this wanting to make a RWHP and RWTQ PID but I'm not sure at what to do. What do I have to do? I've been reading about putting in formulas but dont know where to put them. If someone could have a step-by-step process to make them show up I would greatly appreciate it.

Thanks
-Sal

[2002_z28_six_speed]

Hey guys, I've been reading about this wanting to make a RWHP and RWTQ PID but I'm not sure at what to do. What do I have to do? I've been reading about putting in formulas but dont know where to put them. If someone could have a step-by-step process to make them show up I would greatly appreciate it.

Thanks
-Sal

use the search feature on your computer to locate a file called calc_pids.txt

that is where this info will go!

[DmaxHawk]

use the search feature on your computer to locate a file called calc_pids.txt

that is where this info will go!

Thanks! I got the pid to come up on the pid list but I can seem to get a gauge or chart made to log the results..Any idea on how to do this?

Thanks

[Extinct]

Found this thread and thought I would contribute. You can empirically measure your real world drag using a coast down test. By sorta using the power calc in reverse you can figure the resistance. The aero drag increases with the square of speed and the rolling resistance is a linear funcion, both have coefficients of course, however by measuring the coastdown and plugging the data in your can use a curvefit and get a real life measure of the two coefficients.

[2002_z28_six_speed]

Found this thread and thought I would contribute. You can empirically measure your real world drag using a coast down test. By sorta using the power calc in reverse you can figure the resistance. The aero drag increases with the square of speed and the rolling resistance is a linear funcion, both have coefficients of course, however by measuring the coastdown and plugging the data in your can use a curvefit and get a real life measure of the two coefficients.

This is entirely true and the best way to get the data if you can find a flat spot.

I wish I could pursue this more but I no longer have a laptop. I am pretty pissed about that... Not much I can do. I'd rather not spend the money on a new one.

[scdyne]

This is entirely true and the best way to get the data if you can find a flat spot.

I wish I could pursue this more but I no longer have a laptop. I am pretty pissed about that... Not much I can do. I'd rather not spend the money on a new one.

Why in the world does it require real time logging to the scan tool for this PID to work?
Maybe it's just me, but I can't get it to work when uploading the logs from FlashScan and displaying them in the ScanTool.

I hate having to export everything to MatLab to play with the HP, TQ results.

[joecar]

In the scantool, open your log file, goto the PIDs tab and select the calc pids you require...

Then on the chart display, pick a corner of a chart and do rightclick and select one of those calc pids.

[scdyne]

yes, yes, in theory I know how to do it, but in function my calculated PID for Power_RW doesn't display anything but a value of zero.

I have Build 84 and the default PID in the sae_generic.txt
Yes the gvmlb() is valid as is the Power_RW PID.

something is a miss and I just can't see it..

[joecar]

Try this: in your calc_pids.txt make a separate calc pid for each component of your power calc pid, and disiplay each of those on the chart tab.

[5.7ute]

yes, yes, in theory I know how to do it, but in function my calculated PID for Power_RW doesn't display anything but a value of zero.

I have Build 84 and the default PID in the sae_generic.txt
Yes the gvmlb() is valid as is the Power_RW PID.

something is a miss and I just can't see it..

In the scan tool with the log loaded go to Edit/log file information/vehicle options and make sure the information is recorded in here.(weight etc)