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Hi I have a 1996 camaro z28 and I have been tuning it a little with jet dst now I really want to start doing major tuning but need some thing to data log with. I have been search for a data logging device for a year now and have gotten no where. So what can I data log a obd2 lt1 with. I don't care about price or what it is as long as it works good for data logging. Thank you for any input
I have the Elm wi-fi and run Dashcommand. Pretty easy to use, you can set up different gauges for all your engine sensors and it's fairly cheap. You can data log and watch later on gauges and in numbers form...
Also how do you like dash cammand it looks good but how fast does it up data parameters. Does it give you enough parameters to tune well with and are you using it on an lt1
Dash command works pretty well. I have all Apple products and it's nice because your not limited to using one device. I can run it on my phone or iPad and you can use it on as many vehicles as you like. One thing though, you have to set up each device, I haven't got it to transfer gauges and the setup through the app. The closer you put your device to the Elm wifi the less realtime delay, which there really is none. You can't tune with it but you can see exactly what the PCM sees in realtime. After you set your vehicle up depending on the pcm, you might have to purchase different PID's. The GM one for my car was $9.99, the app is like $10 and the ELM wifi $15 on Amazon. The PIDs are licensed through the different manufactures ie Chevy,ford, dodge etc.... I don't know what PID stands for but they are the "codes" needed to see the reading for the engine sensors. Hope this helps. It's a really cool app for $10, I also have friends that run Torque and have said really positive results as well.
Yes you can do gear ration and tire size correction. I really like the program make changes to tran shift point and timing are easy. The rest of the things like a/f ratio can be a little challenging to change. I wound up but the dash command from Palmer performance and really like that for data logging.
..... You can't tune with it but you can see exactly what the PCM sees in realtime. After you set your vehicle up depending on the pcm, you might have to purchase different PID's. The GM one for my car was $9.99, the app is like $10 and the ELM wifi $15 on Amazon. The PIDs are licensed through the different manufactures ie Chevy,ford, dodge etc....
I don't know what PID stands for but they are the "codes" needed to see the reading for the engine sensors.
Hope this helps. It's a really cool app for $10, I also have friends that run Torque and have said really positive results as well.
PID = parameter identifier and is a hexadecimal number for a individual sensor reading. PID values are different for the different diagnostic modes of the ECM/PCM.
What im saying is u need a table for all the PIDs in each mode. OBD II has 10 modes. The scanner u own determines which modes it can look at.
I've got ScanXL Pro USB and WiFi(with GM enhanced parameters....a must for dyno tuning/serious troubleshooting) about a year ago. The USB version has some speed, but WiFi is slow on updates. Autotap(10-20mS per PID) is a little faster on pulling the PID's compared to ScanXL(20-30mS per PID) on USB.
Autotap has nothing compared to the EFI Live or HP Tuners like logging ability of ScanXL Pro. I've been impressed with it and am using the AC pressure sensor input to pull in data from my AFX wideband. You can set up custom tables(so you can match the LT1 VE table RPM vs MAP points), custom PID's, etc. Very nice stuff.
Screenshot from Palmer's website:
I have not done any dyno tuning with it yet to dial in my VE table and MAF calibration, but that is on my list of things to do next.
I bought my software direct from Palmer Engineering, but I think ScanTool.net may have the better prices from time to time when on sale.
For users of Autotap, know that there is a serious bug in the Windows/USB version that does not display the LTFT fuel trims correctly for OBDII on the LT1(at least on a '96 Z28 PCM). Bank 1 seems fine, but Bank 2 is wrong and never moves much. The old dos version of Autotap(com port) is fine on the LTFT's, but suffers from not logging the AC pressure voltage right even thought it displays it on the screen fine.
That is how I came across ScanXL as I was looking for another solution to data logging on the LT1.
I do have a GM Tech 1 tool as well and can compare what the Tech 1 is reading vs other logging software for some added measure of data confidence.
Hi I have a 1996 camaro z28 and I have been tuning it a little with jet dst now I really want to start doing major tuning but need some thing to data log with. I have been search for a data logging device for a year now and have gotten no where. So what can I data log a obd2 lt1 with. I don't care about price or what it is as long as it works good for data logging. Thank you for any input
I have not used it yet as I was needing OBD1 data logging for a TPI and used WinALDL, but I hear elsewhere TunerPRO is pretty good. Take that for what is is since "I" have not used it, but might be worth looking at.
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1996 lt1 data logging 
