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Old 02 April 2014, 01:02   #11
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9.8hp short shaft,
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Old 02 April 2014, 01:05   #12
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I rang a dealer today they told me that I. Could take the pressure to 0.5 for the floor
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Old 02 April 2014, 09:09   #13
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Good to hear from a fellow Sun Sporter. The brand seems to get a bad rep on here but their identical to the Honwave and made in the same factory.

Anyway, just to confirm what Peter said. The Sun Sport manual states 0.25 for the tubes and 0.8 for the floor. Anything less in the floor and it compromises the ride and effects speed and handling. And also Landlocked's advice is worthy of note.

I've had my 3.2 for a couple of years now and it's been great fun however it's crucial that the floor is 0.8 when it's in the water. By that I mean if you pump up the floor to 0.8 and put it in the water, the cold water will of course lower the temperature of the air in the floor and so will lower the pressure. So a nice rigid floor on land can turn into a floppy thing in the water. My routine is pump it up to 0.8, put it in the water for a few minutes until the air in the floor stabilises i.e falls to the temperature of the water and then pump it up to 0.8 on the water.

This is of course a lot easier with an electrip pump and a small battery as the foot or hand pump is a bugger of a job on the water. A bravo pump and 12v battery is an essential investment if you're inflating and deflating on a regular basis.

I get 17 mph wot with a merc 6hp so I would imagine yours will fly with the 9.8.

Hopefully I've attached the relevant manual page.

Cheers
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Old 02 April 2014, 12:55   #14
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Thanks manonthemoon for that, do those pressuers apply to a deep V hull ?? or just to infltable keel and hard floor
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Old 02 April 2014, 13:02   #15
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Unless you want to explode your keel go for it, keels works best between 3.0-3.5 psi. 3.0 is enough. Flat air decks and V deeep decks works between 0.8 to 12 psi.

You could inflate that V deep floor to 10 psi, once on water should stabilize to around 0.8. Nice thing to count with an electric 12 volt pump. Usually at afternoon if boating all day long, deck will be at a underinflated condition. Pump it up, pump it up.

Still find cracy to inflate a deep V keel with just 0.8 psi, probably that brand doesn't know what they selling and wants to be on the safe side regarding inflating to a lower pressure in case of a Kabum if going higher.!!!!

BTW, those hard inflatable decks are not plain baloons as in a inflatable bed, upper and lower fabric has thousands of crissed-crossed fibers glued between them, so stands hard working pressures.

Happy Boating
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Old 02 April 2014, 13:08   #16
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Slate -this is for the deep v hull.
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Old 02 April 2014, 13:45   #17
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Originally Posted by Locozodiac View Post
Unless you want to explode your keel go for it, keels works best between 3.0-3.5 psi. 3.0 is enough. Flat air decks and V deeep decks works between 0.8 to 12 psi.

You could inflate that V deep floor to 10 psi, once on water should stabilize to around 0.8. Nice thing to count with an electric 12 volt pump. Usually at afternoon if boating all day long, deck will be at a underinflated condition. Pump it up, pump it up.

Still find cracy to inflate a deep V keel with just 0.8 psi, probably that brand doesn't know what they selling and wants to be on the safe side regarding inflating to a lower pressure in case of a Kabum if going higher.!!!!

BTW, those hard inflatable decks are not plain baloons as in a inflatable bed, upper and lower fabric has thousands of crissed-crossed fibers glued between them, so stands hard working pressures.

Happy Boating

You are getting your units mixed up, the floor needs to be inflated to 0.8 Bar which is 11.6 Psi

I'm pretty sure EP Barrus know what they are doing
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Old 21 April 2014, 13:30   #18
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Ok so I finally got again today, inflated the keel to 0.7 Bar and tubes to 0.3 Bar and I can say it was perfect I launched an hour before high tide and it was flatish enough to get 23mph WOT on my own, caught a nice cod while fishing and on my way in had a pod of dolphins following me, I got back to the van and my wife said there was a kayaker on the horizon, so back out two miles to check he was ok and all was good, he even gave me some markers for bass and cod
So Thank you all for your help from a very happy siber
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Old 21 April 2014, 17:05   #19
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You are getting your units mixed up, the floor needs to be inflated to 0.8 Bar which is 11.6 Psi
Posters should specify wether Bar or PSI, some post just states plain mumbers, great difference betweeen them. 12-14 PSI is fine for most air decks.

Slate, seems you're overinflating tubes with 0.3 Bar, max just 0.25 Bar or 3.5 PSI, unless manufacturer stated. In plain summre will achieve an overinflation that could be harmfull to tube seams. 3.0 Bar is around 4.5 PSI.

Happy Boating
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Old 22 April 2014, 13:31   #20
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3.0 Bar is around 4.5 PSI.

Happy Boating
You wont have many happy boating days if you think 3.0 Bar is 4.5 psi lol.

3.0 Bar is over 43 psi
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