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Blade combo

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Blade combo

Postby riverboater » Wed Sep 18, 2019 10:10 pm

What blade / nozzle combo for the 852 behind a Kodiak 6 ltr, would you recommend?
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Re: Blade combo

Postby Scottwaterjet » Wed Sep 18, 2019 10:27 pm

19 std / 19 pro 116 mm insert should work very well. Jeff has a lot of experience with this combination
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Re: Blade combo

Postby rockchuckar » Wed Sep 18, 2019 10:54 pm

19std/19std 116mm would probably be the best for your smaller boat as that combination is really snappy and lets the engine rev up to where it really likes to run . 19std/19pro 118mm would lower you rpms down a bit and let you lift a better load. 19pro/19pro/121mm will make it pull stumps and help lift a bigger load in a larger boat but may be overkill for your smaller boat. This is all based on testing and playing with those combinations in a 20 ft. boat.
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Re: Blade combo

Postby riverboater » Thu Sep 19, 2019 7:46 am

Thank you for the info, I have those combo's on the shelf so will have what I need to test once the new mill arrives.
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Re: Blade combo

Postby phatboy07 » Thu Sep 19, 2019 9:52 pm

Will this type of nozzle size Recommendations (increase for more lower end pulling) work for 19rpo 19stnd with 6.2 LSA? currently running a 108mm nozzle which is smaller than recommended above for a lesser horsepower engine.
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Re: Blade combo

Postby Kilowatt » Fri Sep 20, 2019 2:28 pm

I currently have a 111mm in my 852/6.2DI with 19S/19P. I tried a 114mm but it slips on holeshot. I'm guessing a LSA is going to slip even worse if you have a heavy boat.

Riverboater- I have a 114 and 116mm insert if you'd like to borrow them, I'm in PG.
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Re: Blade combo

Postby rockchuckar » Fri Sep 20, 2019 5:27 pm

phatboy07 wrote:Will this type of nozzle size Recommendations (increase for more lower end pulling) work for 19rpo 19stnd with 6.2 LSA? currently running a 108mm nozzle which is smaller than recommended above for a lesser horsepower engine.

You move up in nozzle size as you move up in blade pitch . This example was based on using the same engine and changing to courser blades . Nozzle size is determined buy blade pitch to a certain degree . If you just move up in nozzle size you will come to a point where it will start cavitating coming out of the hole . If you need more of an explanation to get your head around it please give me a call @ 208-921-1214 . :Drink:
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Re: Blade combo

Postby phatboy07 » Sat Sep 21, 2019 8:37 pm

Thanks for the reply gents
What would you guys recommend for impellers and starting nozzle sizes on an 852 with an 6.2 LSA on a heavier boat?
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Re: Blade combo

Postby rockchuckar » Sun Sep 22, 2019 8:26 am

What is your definition of heavier ?
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Re: Blade combo

Postby phatboy07 » Sat Sep 28, 2019 8:56 am

21 ft, 7 ft bottom delta pad....weight is between 4500-5000 pounds with just fuel and a few things. No passengers
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