I wanted to post to this in the actual thread but for whatever reason I cannot reply to it of make a new thread anywhere but here.
This may help give a visual for the results. This is a post I made on highperformancecrew.com forum where I learned about the webpage.
After some soul searching for the right strecth of road to test this with, I came on no other than, Pikes Peak.
The now fully paved run up the hill provided a great video reference of the true limit for how fast you can go, that of Greg Tracy's sub 10 minute run from last year.
<iframe width="560" height="315" src="http://www.youtube.com/embed/OTiTPAusog4" frameborder="0" allowfullscreen></iframe>
I ran this side by side and followed along with the map generated from using GPS coords 38.921239, -105.037215 for the start (1:15 in video) and 38.839795, -105.044462 for the end pont (9:38 min in video). [google would not select the true start and finish line any closer]
I stopped the vid freqently to keep my bearings and take some screenshots. The pics below are at various points in the run screen captured along side the map with the specific turn and speed limit predicted highlighted.
In short, as expected, don't trust the elapse time prediction in the program for all reasons already mentioned and probably more. However, the speed limit signs at specific points are a close match and still potentially useful, even if you only use it for watching Pike's Peak runs
If I were to use this on my own, I'd ignore the time and just focus on the predicted speed limits. If you wanted to use the time feature I'd scale it back to 40 or 45 deg lean angle and a max speed 80 or 100mph, or less depending on how aggressive you plan to ride. This should help to cut out some of the error. To get an idea, I had to run the map at 45 deg lean and 120 mph max to get the predicted time to line up with the video of Greg's run.
The speed limit map pics below are at 50 deg lean angle. Using a 155mph max speed, it says 7.55 minutes, at 120 max speed 7.88 min. The actual elapse time in vid between those points is 8min 23 sec (8.4 min).
pics on youtube Clips of Greg Tracy Pike's Peak run side by side with map from how fast can i go dot com - YouTube