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How do I figure out my WOT? And related issues . . .

dnauhei

New member
I have a Chrysler Nissan CN6-33, also known as an SD-33 in the automotive version. I need to know WOT so I get speed calculations to dial in the right prop. But the manual does not use that terminology "WOT." I also need to know what rpm is OK to run the engine. Here is the info I do have:


There is a plate on the engine that says the following:

Rated output - 73 @ 3200
Cont. output - 53 @ 2600

The manual has an engine performance curve graph which calls 3200 "maximum intermittent speed." It calls 2600 maximum continuous speed.

However, I have also seen a marketing brochure from Nissan that lists "rated horsepower" as 4000.
Chrysler Nissan 2.jpg


  • Is 3200 WOT? or 4000?
  • Should I avoid running the engine above 2600 except for maneuvering?
  • Is it safe to run the engine up 3200 for 5-10 minutes or more?
  • If 3200 is the highest safe RPM, should I limit my throttle at 3200? Or for emergency maneuvering, should limit it higher?
 
I recommend that you post this question to the Chrysler Nissan Diesel forum. Go to top left of this page, click on "Forum Home" and scroll way down to the diesel engine section, and click on "Chrysler Nissan Diesel." Post you question there.
 
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