Page 1 of 1
CUMMINS
Posted: Sep 12th, '08, 10:48
by Craig Mac
Going with a friend to sea trial a boat with QSD9--380HP---what should be the WOT RPM want to confirm she is propped correctly.
Posted: Sep 12th, '08, 12:09
by Craig Mac
Typo QSB9-380 HP
Posted: Sep 12th, '08, 15:00
by dougl33
Craig,
I don't think there are a lot of guys running the QSB's on this site. I looked at both Boatdiesel and Cummins' site. I'd say to make sure they can hit 3000rpms in gear @ WOT with a full load.
Posted: Sep 12th, '08, 15:24
by Craig Mac
Thanks--any idea how fast you should cruise them? 2500?
Posted: Sep 12th, '08, 15:49
by dougl33
I think you could cruise them at 2500-2600rpms. That's just a guess. I'd head over to boatdiesel.com to educate yourself prior to the sea trial.
Posted: Sep 12th, '08, 17:36
by In Memory Walter K
Usually 200 rpm's under wot....at least that's what the rule is with the 6b's.