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Prop question - 340 Sport

Old 04-12-2019, 04:50 PM
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I'll be in Fort Myers Fri & Sat & can run your L & R prop on my outer engines w/ my R prop in the center

They look fast just sitting there.
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Old 04-12-2019, 05:23 PM
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That would be a fun test.
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Old 04-12-2019, 06:40 PM
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Originally Posted by NASCAT View Post
MP-
I'm definitely interested in your prop testing. Ben Robertson tried to get me to go w/ Bravo's on my 34's b/c he's had great success w/ them on the Fountain's back in the day BUT Terry & Trond insist that the NT hull does NOT like them.
I've inquired about SportMaster lowers & it was a No Go too.

My new boat and another were tested w/ the Max 5's, all I was told was that they didn't work & the Rev4's performed better. I'm not gonna lie that when I here NO to so many different tuning options that I begin to wonder if they just rather stick w/ what they know or stick w/ the proven but I really don't think thats the case. Nor-tech tends to constantly seek improvement w/ their products, whether that be design, options, fit & finish or performance.

Keep us posted!
Maybe they’re concerned that strong stern lift could create handling issues with the stepped hull?
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Old 04-12-2019, 06:49 PM
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Originally Posted by hogie roll View Post


Maybe they’re concerned that strong stern lift could create handling issues with the stepped hull?
Good thought. I didn't experience any ill handling with the limited time on the change last season, but it certainly might be a concern. With this work I had FJ cut off 3/4 inch of the diffuser ring and tweak the blades to carry the nose better. Should result in a bit less stern lift and better carry the nose at higher rpms. I guess time will tell.
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Old 04-15-2019, 08:21 AM
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Originally Posted by Mentalpause View Post



FJ work done. Unfortunately due to Easter and a family obligation I won't be down to give these a spin until early May. But they look great!
I may be down this weekend. I know where the keys are!
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Old 05-07-2021, 03:37 PM
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What top speed did you end up achieving?
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Old 05-07-2021, 03:49 PM
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70 at LOTO. Lake is 660 elevation.
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Old 12-23-2021, 04:45 PM
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Originally Posted by Mentalpause View Post
70 at LOTO. Lake is 660 elevation.
Out of curiosity, what speeds does a 34 with twin 300's run?
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Old 12-23-2021, 05:13 PM
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Originally Posted by OldSchool View Post
Out of curiosity, what speeds does a 34 with twin 300's run?
62 top at LOTO with maybe 100 gallons of fuel and perfect conditions. Otherwise count on 60. Sobo showed 65.5 on the recall on their test run in Florida, likely with the 20 some gallons of fuel in it when it got delivered and at sea level. 400s upped top speed about 9mph given all other factors consistent. Interesting enough my over all fuel burn improved over 25% with the 400s.
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