This post was on the SCT PRP forums and doubt it will remain long. It was posted in the thread I created for the srt dataloggin..
I thought I'd make a few comments here. First off, it just does not seem likely that SCT is going to support data logging for Chrysler vehicles. It is time, I believe, to look for other options. Our shop specializes in Chrysler performance vehicles, and I'm just as frustrated about the lack of data logging options available for these cars. Even with a DRB3 , AutoEnginuity tool, or EASE tool, you only get samples 3-6 time per second, total. At that rate, if you were logging three pids, you would only get 1-2 samples per second per pid. Under ideal conditions, Chrysler SCI vehicles have the ability to log at up to 500 times per second. Realistically, if we could have a tool that would log at 10-20 times per second, per channel, we would be doing very well for ourselves.
There is a company called DrewTech that makes a logging device called DashDaq DashDAQ Series II from Drew Technologies , and a PC based version of DashDaq DashDAQ-PC Data Acquisition Software . They already support enhanced Ford and GM pids, and support later Chrysler CAN vehicles, but do not support the Chrysler SCI vehicles. I was able to get in touch of the person at DrewTech who is the main developer of the DashDaq product, Brian Herron, and inquired about the possability of adding support for earlier Chrysler vehicles that use SCI, like the Neon SRT4. He indicated that only a few people had inquired about support for SCI , but if there was enough interest, he would have no problem adding Chrysler SCI enhanced pids, and that their development team had already looked at what would be required to do so. Now, I made it very clear to him, that the tool would have to have very good sampling rates, but suggest to people reading this, that you emphasize this point with DrewTech as well, if you decide to contact them. He plans to log the enhanced pids from the PCI bus, rather than the SCI bus, and insisted that the PCI bus would be very fast. If not, they do have the option to make an adaptor to log SCI data to the DashDaq. I suggest that if you are interested in this, please contact me, and/or DrewTech , and it probably would not hurt to link to threads like this one, so they can see that there really is a need for data logging tools for these vehicles.
Chrysler SCI communication protocol goes back to the 1980’s and from what I understand, has not changed much from that time. The controllers have a special “data logging” mode that can provide very high data rates as I mentioned in the paragraph above. I recently stumbled across a project that someone is working on to support high speed logging through the SCI bus on early Logic Module/SMEC/SBEC equipped Chrysler vehicles. Apparently, they already have it working on the Logic Module vehicles, via a plug-in for Log Works, which is the free logging software offered by Innovative Motorsports, and are actively working on the support for the SMEC/SBEC ecu’s. The author of the software is not very familiar with the later Chrysler vehicles like the SRT4, but after contacting him via email, seemed interested in looking at adding support for SCI vehicles, once he gets it fully functional for the early cars. You can check out the thread here : http://www.turbo-mopar.com/forums/sh...d.php?p=479213 . Now I know that some might be a little skeptical that something like this might not followed through to completion. I can honestly say, that I have not seen someone make this kind of progress on a DIY level for a functional SCI logging tool. You may just want to send him a nice e-mail or message to let him know you are interested.
I have talked to Drew Tech on and off for years and never really got anywhere with it. They told me they would be willing support SCI , bu this was 3+ years ago.
I'm interested if they made something. We could work with PCMScan too to see if we can get those enhanced PID's supported in software.
Also I'm not sure how much you could get out of VPW, but the tactrix cable will supporting VPW soon.
I have talked to Drew Tech on and off for years and never really got anywhere with it. They told me they would be willing support SCI , bu this was 3+ years ago.
I'm interested if they made something. We could work with PCMScan too to see if we can get those enhanced PID's supported in software.
Also I'm not sure how much you could get out of VPW, but the tactrix cable will supporting VPW soon.
See, this exactly what they told me a year ago...
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I thought people were using the DSP for datalogging. That is the route I'm going to take if SCT doesnt own up and come out with it. Which is looking like it will never happen.
I thought people were using the DSP for datalogging. That is the route I'm going to take if SCT doesnt own up and come out with it. Which is looking like it will never happen.
Honestly, you will NOT find a more comprehensive datalogger than the DSP when using the DataViewer software on a laptop. It has nearly 2000 different parameters that can be logged. It also uses the SCI bus natively so refresh rate is through the roof unlike a ScanGauge or the DashDAQ.
I would suggest something very similar to the star mobile that Chrysler uses on the Can bus cars and the PCI Bus "Co-Pilot" datalogger. I loved using both for monitoring when I worked at the dealer.
Basically... you hook it up to the computer select which parameters you wanted to "monitor" hooked up handheld in car. Drove around and had a trigger button on it for when you wanted to datalog. hit the trigger and it only logs the uploaded parameters.
Once done you bring it back and hook to the computer/laptop. It then pulls up the selected parameters, which can be viewed with a linear graph.
No need to take a laptop in the car.
If it were similar to that I would be all over it.
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Possible alternative for datalogging
Linear Mode
