Anyone? I am looking at one, I have a few laptops and a PDA (though I think my Dell Axim is not on their list), and would like to try this:

http://www.nology.com/laptopdyno.html

 

I have the pda version and I am thinking about getting the sofware to use it on a lap top too.

 

Worth using? How accurate is it?

 

It is great for clearing codes and reading sensors (up to five at once using the pda). You can also record and play it back. The dyno aspect is consistant if you keep the parameters up to date. It rated my car about five to ten hp less than a dyno jet on the same day. the 0-60 seems inline with the power of the car, but I have nothing to compare it to. I don't use the 1/4 mile test because I would be going way too fast and I go to the drags anyway.

I like the pda version because it is easy to keep in the car. I may get the lap top update mainly to be able to print and manipulate data easier.

My only complaint is that the sampling rate can be slow for documenting ignition timing (a point for ever 2 or 3 hundred rpm instead of a point for every 50 to 1 hundred rpm), but that may be my pda and not the nology suff.

 

You might want to look at some other cheaper and even better options like digimotos package. Something I am considering of getting myself.

Garrett

 

It uses OBD-II data, and that's pretty slow. All OBD-II loggers have the same issues. There is a "streaming" mode where the car just sends dataset after data set without the logger asking for a new point each time. but it's been a while since I was looking into all this stuff.

The cheapest I found was Lap Logger, www.laplogger.com.

Any dyno function with these things will get speed from the interface, and use time measured by the PDA or computer. You need vehicle weight and some gearing information to get a HP number.

And these should log lower than a chassis dyno. Chassis dynos don't measure wind resistance.

Matt