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  #1  
Old 07-15-2005, 10:03 AM
footin123 footin123 is offline
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Join Date: Jul 2005
Boat: 1994 Maristar 200
Location: Northeast
Posts: 5
Cool speedo accuracy/adjustment

My buddy has a 2003 X9
Boat speedo shows 30 mph at 3,000 rpm, which seems correct. However at 4000 rpm (barefoot speed) the speedo shows 43 mph.

Does anyone have a suggestion that would allow us to have 40mph at 4,000 rpm, without impacting the readings at 30mph??

Thanks for your input!!!!!!

Tom
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  #2  
Old 07-15-2005, 10:09 AM
east tx skier's Avatar
east tx skier east tx skier is offline
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Boat: 1998 Ski Nautique
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Hi Tom,

The 30 mph at 3,000 rpm is a very rough estimate. For example, by GPS and course times, my boat gets 36 mph at 3,475 rpms. If you don't have access to a slalom course, I'd suggest using a handheld gps to calibrate your speedos.
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Old 07-15-2005, 10:13 AM
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sizzler sizzler is offline
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Boat: 1995 barefoot200;;;2004 X9 MCX
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easttex.......how do you recalibrate the speedo?????
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  #4  
Old 07-15-2005, 10:41 AM
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east tx skier east tx skier is offline
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Boat: 1998 Ski Nautique
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Well, on mine, two ways. The old airguide has a knob at the bottom that you just twist when you get a good measurement either by GPS or course. Since there's a good deal of silt on our usual ski lake, the airguide clogs up after a few minutes in the water.

The paddle wheel is hooked to PP Digipro 6.4. You can recalibrate it in wakeboard mode using GPS, but in 6.4, that doesn't carry over to slalom mode. So in slalom mode, I run it through the course and then do the recalibrate feature.
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Previous: 1993 Prostar 205

Red 1998 Closed Bow Ski Boat, Ford 351, 310 hp, Acme 4 blade, Perfect Pass SG.

FAQ


Tyler Ski Club


To me, this forum is about love of inboard boats. It is about the sharing of information and, on a good day, some humor. It is not about post count, brand of boat, or any other superfluous labels that lend themselves to a false sense of superiority. Please, respect one another, try to pass on accurate information, and keep your eye on the ball.
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