I figured out a simple way to see how long your track is from within blender, so you don't have to race the track to see how long it is.
you take a curve and "fit" it to your track. Add a plane with an array and curve modifier (using that curve), apply them, take the number of faces and divide by 11.5 and that is your length in seconds
accurate to within 5 seconds.
hope it helps,
ctdabomb
Some people are like slinkies... not really good for anything, but you still can't help smiling when you shove them down the stairs.
