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Originally Posted by offshoresteve
(Post 3398391)
o
Most 28 Skaters with the new 300XS and 15X34 3blade are running 110-111. I am spinning 15x34 4 Blade Dewalds....... 115@6,300 90@5,100. Of course I took my Skater to Shaun Torrente for set up!!:drink: |
I really dont see the 250's getting much past 100.atleast with an all round setup. He is definitely loosing alot with that kind of slip.. whoever's props they are aren't working..
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Originally Posted by Brad Zastrow
(Post 3398403)
My good friends 28 with 300X's run 121 (GPS) using 15 x34 three blades. Not familar with Dewald props. I would assume the older X motors are faster than the XS simply because they turn more rpm. The Merc four blades for outboards are not a top end prop at least on three cats I tried them on. With 250XS motors that boat should be over 100 mph. Outboards are finicky when it comes to props and setup. Once you nail it leave it alone. I have spent many many hours making little changes to dial in outboard cats. Shaun Torrente is a very knowledable guy on Skater setups.
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Lots of good info in here! Thanks to all who have been posting!
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Originally Posted by Double Rigged
(Post 3398659)
Pics of 30" 4 Blade Dewalds
It is new design that they use on the X Cats overseas. |
1 Attachment(s)
Bill how about 70 Hp per side . 300 x were 320 hp
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I hope this weekend the weather will be good so i can try my boat again . i will try to lower the engine hight maybe the 4B prop are lifting my boat to much from the back that coses to much slipping . i dont want to replace those props since it was my last run was the first test om them. and i will keep u updated.
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Originally Posted by KEVLARKAT32
(Post 3399062)
Bill how about 70 Hp per side . 300 x were 320 hp
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Originally Posted by skate
(Post 3398961)
That's a very unique looking prop. How long have they been in production and how many 28 to 30' cats do they have them on. I'm certainly not an engineer but that looks like a lot of metal spinning on those blades. With the sharp angle on the leading edge at the hub it seems like a lot of stress would be generated and lead to failures. That being said if it and the lower unit held together it looks like the blade would generation a lot of forward thrust. But then I could be wrong!
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Originally Posted by skate
(Post 3398961)
That's a very unique looking prop. How long have they been in production and how many 28 to 30' cats do they have them on. I'm certainly not an engineer but that looks like a lot of metal spinning on those blades. With the sharp angle on the leading edge at the hub it seems like a lot of stress would be generated and lead to failures. That being said if it and the lower unit held together it looks like the blade would generation a lot of forward thrust. But then I could be wrong!
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