14 August 2012

Rattle be gone!

While I've been tuning the turbo, excessively rich tunes have made for some serious backfires.These backfires have caused the baffles inside of the resonator on my exhaust to expand and become loose and rattle like my muffler is full of bolts.
I replaced both resonators once this year but they too have become a little too rhythmic. I decided to repair the loose baffles by cutting slots around the pipe and welding the baffles to the resonator housing, eliminating the rattles. The results....now I only hear the mean sounds of the Meany


03 August 2012

DashDaq XL Data logger

I recently got a new data logger...now you say "but wait, surely you already had a data logger?" and you are right. I have had a Dash Dyno for years; however, just as every owner of the Dash Dyno has said to themselves "there has to be a better way" I decided to find that better way.

After some looking around I decided to order a DashDaq XL by Drew Technologies. The unit arrived, I plugged in the OBDII cable and with just a couple button presses I was set up and ready to monitor and log my cars data. It is incredibly simple to do most things..no reading of the manual or asking a buddy to help you figure it out.

In operation, once you have set up the parameters for the first time, using the Daq is as simple as pressing the one physical button on the unit. You can power on (actually awaken) the unit before or after starting the car and it instantly goes to the last screen you were on. Ready to log, just press the "log" button on the screen and it will automatically name the file to the next in the sequence (ie: log_005) and start recording. It is all so simple compared to other units.

As for the logging...this is where the unit hits the NOS and just blows the competition away.
the bullet points:

  • outputs to a .csv (excel) or LogWorks file format. Easily viewed and sorted using Excel or the free Logworks software by Innovative Motorsports.
  • audio and visual alams can be set easily on any data parameter
  • has "global log parameters" where it will log up to 16 parameters anytime you are logging, regardless of what is displayed on the screen....This is perhaps the best feature of the Daq.
  • can log up to 32 parameters!
  • very fast sample rate..logging 11 parameters I get a sample rate of 42 sets of data per second!!
  • records in the past- I have see it record back 23seconds before I hit the log button. Consider driving along, your car does something weird, then you hit the "log" button and you just recorded what happend 10 seconds before you hit the button!!!


The DashDaq also reads and clears CEL codes, providing the definition of the code in the code summary (ie: P0301 misfire detected in cylinder 1). The one shortcoming that I have found w the Daq is that it doesn't  provide a Freeze Frame data capture when a CEL is thrown.

There are a few other things that the Daq does, from allowing custom screen theme design to performance meters..these are things I have yet to delve into but for me are just icing on the cake.

Watch this video to see the DashDaq XL in use



If you'd like me to email you my configuration files so that you can just copy them to an SD card and skip configuring the Daq let me know.

The unit is not cheaply built, nor is it cheap. It retails for $550 and in my case I wanted to monitor Knock Retard (KR) which is a parameter that is only included in a vehicle specific expansion for another $100. For me, the extra cheddar spent on the Daq is nothing compared to aggravation and lost time spent with inferior units.
I wish someone would have told me years ago about the DashDaq.