Durametric pulls data before and after UDP

[steved0x]

Originally Posted by JFP in PA

Sorry, but this why dyno runs are done under controlled circumstances. From Dec to Feb, a lot of things (air temperature, air density, humidity, barometric pressure, wind direction, road surface, etc.) may have changed dramatically enough that you could have seen similar differences without any changes. The validity of experimental data depends upon controlling all of the possible variables other than the one under study.

I would have to say this (these) are probably the most major factors. I wasn't even on the same roads as I was trying some different roads to try and avoid traffic.

It was a fun exercise, until I got the part of the results where my 4th gear pull was slower, then I was really bummed with visions of potential engine failures robbing me of my horsepower....

[JFP in PA]

Originally Posted by steved0x

I would have to say this (these) are probably the most major factors. I wasn't even on the same roads as I was trying some different roads to try and avoid traffic.

It was a fun exercise, until I got the part of the results where my 4th gear pull was slower, then I was really bummed with visions of potential engine failures robbing me of my horsepower....

I completely agree it is a very interesting and creative experiment; I would like to see something like this repeated, but in a more controlled manner.