Q&A Forum
Topic starter
My YourDyno kit should be arriving this week~~ 🙂
Dynojet 250i, Just checking some quick math, my roller has a diameter of 17.838 inches so circumference 56.04 inches or 4.67 ft.
That should give me a Roller RPM:
Roller RPM 400 @ 21 mph (Your dyno 30T trigger wheel frequency 200hz)
Roller RPM 3600 @ 191 mph. (Your dyno 30T trigger wheel frequency 1800hz)
Seeing the YourDyno instructions state 200 pulse per second as a minimum it would seem I am fitting right into the sweet spot
Thanks
Rich
Posted : 16/09/2025 10:07 pm
Topic starter
From above: Roller RPM 400 @ 21 mph (Your dyno 30T trigger wheel frequency 200hz)
- Reversing this 400 RPM/60 seconds = 6.666667 rev/sec
- 6.666667rev/sec * 30 Teeth = 200hz
I know it is simple math but I like sanity checks.
This post was modified 1 month ago by R Horn
Posted : 17/09/2025 1:33 pm