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41 Apache Props

Old 04-11-2022, 10:42 AM
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Default 41 Apache Props

So built up 588 Apache motors where 830 HP and 900 lbs torque now 930 hp and 1000 lbs torque have #6 drives, Mercury 4 blades 17 x 27 on now should i go to larger prop and if so what is suggested size.

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Old 04-11-2022, 10:45 AM
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What was the rpm range of the old engines vs new? Might go up 1
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Old 04-11-2022, 11:38 AM
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old ones had old Fireball ignition now MSDS boxes with 6000 rpm limiter but dyno peaked out at around 5500
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Old 04-11-2022, 11:39 AM
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sorry old ones limited to 5200
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Old 04-11-2022, 02:41 PM
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More power at a higher rpm, likely to use the same props.
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Old 04-12-2022, 09:00 AM
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yea i should have been clear at same rpm 5200 90 more HP and 120 lbs more torque
new motors rev to 5500 or so before start to drop a bit
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Old 04-12-2022, 11:17 AM
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Just to prove to myself , that I cannot afford a boat with #6 drives................ How much is a pair of off the shelf Merc #6 props ???????????
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Old 04-15-2022, 12:34 PM
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looks like 3-4K labbed 2K more
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Old 04-15-2022, 12:42 PM
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There's a set of Hering Titanium props in the classifieds 1 of 3 sets in the world known to exist, wonder what the cost..............
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Old 04-19-2022, 04:59 PM
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How deep are the drives?
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