03-19-2008, 04:18 PM #1
Crazy Thought (picking up some mph)
We spray silicone spray on our engines to repeal salt water and make it easier to have a clean engine but has anyone thought about spraying it on the bottom on our hulls to repeal water and gain speed... Less water friction.
You'd spray it on right as you launch and of course soap and water the ski when you got home so not like it just sit on there.
Would you think you would pick up some mph or just a waste of silicone spray?
Would it do any damage to the gelcoat?
03-19-2008, 04:23 PM #2
03-19-2008, 04:33 PM #3
- Join Date
- Dec 2006
- Crest Hill, IL
Its been discussed many times in the past, like waxing the bottom of a ski...As the ski runs through the water it would basically "power wash" anything off in a few seconds.
03-19-2008, 04:48 PM #4
- Join Date
- Jan 2007
- Las Vegas, NV
Sanding the bottom of ski creates little air pockets, which makes the ski run on micro bubbles and supposedly makes you go faster.
03-19-2008, 04:59 PM #5
What grit? Sand the lowest points of the hull or the whole bottom?
Anything free to pick up some mph is a great thing
It wouldn't tear it up under there
03-19-2008, 06:02 PM #6
03-19-2008, 07:17 PM #7
Sanding the "patch" is always good for speed. But this speed is very minimal on these hulls and best left for speed junkies trying for the GPS bragging rights. ANYONE else,,,dont do it.
Air bubbles created (airation) from a non smooth surface helps un -wetten the hull reducing drag. Drag in this case for common knowledge would be considerred as friction or in marine applications,,,,,yes even vacuum or suction in certain "hook" designs. But this all pertains to speed and where the hulls life is spent in the water. In this case the hull does not spend any life in the water. Rather just the last aft midpoint. On bass boats it was/is a delta pad. But that is a different drive system. This is a jet,,,jets love water. Not air.
Basically sand behind jet,,,NOT in front of intake. By the way front to back is bs for this operation. Circular ,like a DA, is best. Its a random pattern and go medium. 400 grit is perfect. Thats inner chine, chine to chine, and up to intake front. There you have it.
You will also lose some stability. So if`n you ain`t riding glass,,,all the time,,,it ain`t for you. Period.
03-19-2008, 07:23 PM #8
03-19-2008, 07:34 PM #9
03-19-2008, 07:39 PM #10
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