Exactly. I just calibrated an 02 800 tach and it was 400 rpm high. After we did it we adjusted clutching to 7800 and now it's working right.Originally posted by hmfrappy
[br]7800 on a calibrated tach, 8000 on a non-calibrated tach. 02's make their peak at 7800 and HP drops off dramatically after that. Upwards of 10hp 200RPM's after that. So needless to say they need to be clutched right to run.