prop pitch

[illhuntit]

hi, I'm new at this but don't see this question posted. I have a bayliner 21' trophy with twin 125 force outboards. This boat came from sea level, and I am now going to use the boat at 3900-4500' above sea level now. What pitch do I need, and how do I determine what other data you may need to help me. ae: WOT, RPM ect. Thanks !!!!

 

[trendsetter240]

Re: prop pitch

Welcome to iboats! You can expect to lose about 10% of the rated horsepower on your engines by running them at that altitude. You may need to make some carburetor adjustments too though I'm not certain in your case.

Read the "sticky" post by JB at the top of this forum for a list of the required information. It's appropriately titled "Read this first"

Cheers