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extention box on 26NSX

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extention box on 26NSX

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Old 10-17-2008, 02:56 PM
  #1
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Join Date: May 2008
Location: ponchatoula
My Boat: 26nsx american offshore, HTM SR24
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Default extention box on 26NSX

Anyone tryed an 12" extention box on a 26NSX, if so what's the best propshaft hight?
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Old 11-13-2018, 07:34 AM
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Hi 😀 I know this tread is old. But I want to bump this since I a also are curius about extension boxes. I have a 26 NSX -04 with 845hp and imco scx and running 104 mph with 32p bravo one propeller. None labbed.
Can i expect any speed gains and what about handling? Hope you guys have some experiences you would share with me 😀 It s almost winter here in Norway no and its time to prepere the boat for next season 👍😀

Dan

Last edited by danse78; 11-13-2018 at 10:25 AM.
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Old 11-22-2018, 03:11 PM
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Join Date: Dec 2013
Location: Bourbonnais, IL
My Boat: 2004 American Offshore NSX
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I have a 2004 AO NSX w/ 800HP/12 inch box/SCX upper-SC lower running low 100s w/ 34 pitch non-labbed prop. I was told the box doesn't help top speed on this hull but it does aid in planning and extends the boat's effective length for rough water performance. Again don't think you'll pick up significant speed by adding a box.
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