I am useing a Tower Hobbies tach. I want to know, where do you point the tach? ( If it matters ) At the tip? Center? By the hub? How far away? from the front?
The readings are sometimes all over by 1000 of rpms.
I have a OS 1.60FX, Master airscrew 18 X 6 wood, bisson pitts, NO pump.
I am getting a reading of 8100rpm. I see other post on here where guys are getting in the nines and even saw a 10,100[X(]
I can't get anymore out of it before it starts to go lean.