I've got a turbo and I'm trying to calibrate it so that I can compare my workouts.
I've been told that you can calibrate the turbo by:
1. pumping the rear tyre to 100psi
2. riding at 25 mph at usual cadence (100) then stopping and measuring time taken for rear wheel to stop spinning
3. adjusting the resistance (by either the resistance setting or by adjusting the roller)so that the time taken for wheel to stop spinning is 10 seconds.
On my usual (uncalibrated) setting the wheel stopped turning after only about 3-4 seconds. I found that to keep the wheel turning for 10 seconds required the resistance to be very very light so much so that I was having to ease off to bring the speed to 25mph. This clearly can't be right. Has anybody tried calibrating their turbo in this way?
I'm tempted to get a table of gears and speed and adjust the resistance based on say 52/17 - although I've no idea if this will give me the right readings in other gears. Anyone any thoughts?