You can run that 23" when only 2-3 people are in the boat, but you should get a 21" 3 blade for those days you plan on hauling five people around
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Originally Posted by chris50smith
(Post 3358969)
The above text is my definition of confusing. I will mention to my boat mechanic though.
Here is a quick explanation of prop slip. http://www.brianrogers.net/boatpropslip.doc The other thing I mentioned was simply the gear ratio of the drive. Usually your engine package came with the 1:1.47 gear ratio, but the 1:1.62 ratio is pretty common as well. Should be written on the left decal on the upper part of your drive. |
Originally Posted by A.O. Razor
(Post 3359032)
Sorry. Not trying to be.
Here is a quick explanation of prop slip. http://www.brianrogers.net/boatpropslip.doc The other thing I mentioned was simply the gear ratio of the drive. Usually your engine package came with the 1:1.47 gear ratio, but the 1:1.62 ratio is pretty common as well. Should be written on the left decal on the upper part of your drive. |
1997 scarab 22 with 300hp 7.4 25 mirage plus prop 63 mph with 2 people and fuel. Put five people in boat and barely get up on plane. Fast boat hull, slowest on speed plane was about 22-23 mph. Hard to keep on plane with a skier behind or pop a skier up on plane. Looking back, wish I would have added tabs.
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Originally Posted by chris50smith
(Post 3359035)
I will check!! Thanks!
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Originally Posted by pitts1313
(Post 3359043)
1997 scarab 22 with 300hp 7.4 25 mirage plus prop 63 mph with 2 people and fuel. Put five people in boat and barely get up on plane. Fast boat hull, slowest on speed plane was about 22-23 mph. Hard to keep on plane with a skier behind or pop a skier up on plane. Looking back, wish I would have added tabs.
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I have the same boat with the 7.4 and the 23P 3 blade Same problem, 2-3 people on bard and all is great but when I get more than that it is a dog to get on plane. I hope to go to a 4 blade to help out.
I don't want to hijack your thread, but how is your windshield done? Is it painted or gone Great looking boat. |
Originally Posted by dustdoss
(Post 3359072)
I have the same boat with the 7.4 and the 23P 3 blade Same problem, 2-3 people on bard and all is great but when I get more than that it is a dog to get on plane. I hope to go to a 4 blade to help out.
I don't want to hijack your thread, but how is your windshield done? Is it painted or gone Great looking boat. Curious... What are your speeds with the 454? Are you running a Alpha or Bravo Drive? After getting on here and chatting with people, I have decided to do the following: #1 - Trim Tabs #2 - Prop #3 - Interior Upohstery (wasn't discussed, but adding it in here) #4 - In a year or two.... 350 with forged internals with twin turbos running 5-6psi boost and run the Alpha Drive easy til it pukes and then get a Bravo 1 drive. We shall see what really happens. I need to get rid of my turbo sandrail before I do anything major. |
Sounds like you're on the right track. You're not going to believe the difference the tabs make. Reality of that size boat is even minor changes in weight makes a big difference........that was like a Mr Obvious thing. Seriously though, make one change at a time so you can document the results.
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Originally Posted by pitts1313
(Post 3359043)
1997 scarab 22 with 300hp 7.4 25 mirage plus prop 63 mph with 2 people and fuel. Put five people in boat and barely get up on plane. Fast boat hull, slowest on speed plane was about 22-23 mph. Hard to keep on plane with a skier behind or pop a skier up on plane. Looking back, wish I would have added tabs.
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