Hey,
Just wondered if any of you use the Torque app for Android?
I have it with a cheap eBay adapter and managed to try it out some more today - I'm impressed by the results!
Previously I seemed to have a data rate problem but I've since changed the settings to log at 0.5s intervals and enabled faster logging to improve it. I think the data rate could be better if I had a more expensive adapter and better phone hardware, but it'll suffice for now!
Today I logged the RPM and MAF reading and did a 3rd gear run. Unfortunately I couldn't get to the point where it would change up because I ran out of road!
I downloaded the log anyway and calculated the horsepower by the MAF reading /0.8, smoothed the HP reading by taking an average of the values below and above, and then calculated the torque by (HP/5252)*RPM.
Here are the results:
The book figures for the car are 221 lb/ft and 227 bhp!
I know the MAF calculation isn't entirely accurate, but the fact I achieved the expected HP shows that it should be a very accurate way of measuring any changes in performance!
I'd be interested to learn more about the app and what you use it for!