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Type: Posts; User: Astrofizix

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  1. Replies
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    4-Stroke Yeah for your usage it seems to me you could...

    Yeah for your usage it seems to me you could really go pretty big on the turbo.

    I think you are spot on regarding cavitation. In a way it like spinning the tyres on a turbo car - it almost...
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    4-Stroke It is things like that that really make you...

    It is things like that that really make you realise how many little things are involved in getting a turbo setup working reliably in a jet ski. Part of me wants to get started on mine right now, but...
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    4-Stroke This is something I have been thinking about too,...

    This is something I have been thinking about too, and I think mittens and I brought it up previously.

    My point is I wonder if lag is a smaller issue with a PWC than it is with a car. Because it...
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    4-Stroke That is so much better than mine. Really...

    That is so much better than mine.

    Really shows the price you pay for a deep hull in the ultra. Even if I also cruised at 40mph, I don't think it would use much less fuel at all than at 50. ...
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    4-Stroke Well that really seems to confirm it is a great...

    Well that really seems to confirm it is a great build. Did you have to refuel at any point? If I ride mine in eco mode at around 50mph I will hit the fuel light from an overfilled tank before 60...
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    4-Stroke Yes that is a well sized turbo then, because...

    Yes that is a well sized turbo then, because being able to go to close to 30 psi if you want but still spool well is hardly even a compromise at all. I was thinking I would go a bit bigger so it has...
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    4-Stroke This build just keeps getting better. I am...

    This build just keeps getting better.

    I am on the same page with setting it up for the real world conditions you most often find yourself in. I would take mid 90s repeatable in virtually any...
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    4-Stroke Interesting, I would not have thought boost leaks...

    Interesting, I would not have thought boost leaks like that would be common, so good that you found it early.

    Back to the prop gearing thing, I want to know if I am thinking about this right: ...
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    4-Stroke That is great speed for that boost level. Is...

    That is great speed for that boost level. Is 13/20 the tallest gearing so to speak that you can run? Because it sounds like with the extra boost you are planning, it should have the berries to push...
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    4-Stroke Good to know, same compression as Kawasaki. I...

    Good to know, same compression as Kawasaki. I think I will push to 20 pounds, but only if it doesn't knock.

    Yes actually part of my reasoning to do a turbo build is exactly that, it should be...
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    4-Stroke This is a nice build, and a great write up. ...

    This is a nice build, and a great write up. After getting some use out of my ski, maybe take it to a couple hundred hours supercharged with light mods, I want to build a turbo rig too. Ideally a...
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