View Full Version : '87 Prostar 190 Max RPM

05-03-2007, 08:09 AM
I can turn just around 4300 RPM @ WOT. Is this where I should be or should that engine turn higher? *~900 hrs w/powerslot

05-03-2007, 09:04 AM
I think that motor is supposed to turn around 4400 rpm. Keep in mind that your tac may be off a bit as well.

05-03-2007, 09:25 AM
that sounds good enough to me then. after that many years that's close enough for government work

05-03-2007, 10:23 AM
MC tech drove mine and it was around 4300/42mph and he said that's about right for the prop and year. Mine is a 91 PS190 with 351/ powerslot with 725 hours.

The 87 manual says never exceed 4600.