Biggest Diameter prop for volvo 290 leg

[duggy]

Hi there,what is the biggest diameter prop I can get onto a 290 leg? I have an 8.3L cummins hooked to one and need the big diameter to try to keep the pitch sensible.thinking 4 blade as well to help the cruise economy.
Regards doug

[baeckmo]

16 inches...... and what kind of Cummins 8.3l? Power@rpm's?

[duggy]

Hi,thanks for that,its a v504m v8 with under 400 hrs on it.215hp @ 3300 rpm max,198 @ 3000 light commercial,178hp@ 2800 24hr rating.I have posted a couple of pics of the boat and the engine installation in the powerboat section.
Doug

[baeckmo]

Ok Duggy, you are spinning two threads on the same issue, lets keep it to one or we oldtimers get confused...... See answer in the other t.