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35 fountain with extension boxes and shorties

Old 05-26-2011, 10:12 AM
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Default 35 fountain with extension boxes and shorties

I'm looking for some input on a 35 lightning with 7" extension boxes and 2" shorties. I'm looking to purchase, but have yet to take a test drive and I am curious as to what effects these mods will have on the boat. I am worried about difficulties getting up on plane or any other performance issues I may encounter. Some personal experience feedback will determine if I even want to go take it for a test ride. Any help would be greatly appreciated.
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Old 05-26-2011, 10:47 AM
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What year boat?
Single or dual step?
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Old 05-26-2011, 09:37 PM
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I'm sorry, twin step ( 02 ) with side by side motors
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Old 05-27-2011, 07:01 AM
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I have an 01 twin step with 2 inch shorties. It does not have boxes. I can get it on plane with about any 5 blade prop and I usually use a realtive small 15" diameter prop. It is not a rocket ship to plane but the mph gained makes it well worth it to me.
I would think with boxes it would even be better about getting on plane but have never tried it. Have always heard when you go back you must go up.
Allen
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Old 05-31-2011, 07:22 AM
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thanks for your input, though I wish I would have gotten a few more responses. I will definately take a better look at this boat.
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Old 05-31-2011, 10:43 AM
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Originally Posted by Todd Robson
thanks for your input, though I wish I would have gotten a few more responses. I will definately take a better look at this boat.
Not many 35's use boxes, the notch in the transom already serves the same function as a set-back box. Allows drive height to be higher. Many use -2" lowers without a box, so to optimize performance with the box -2" lowers may not be enough, may need to raise propshaft even higher.
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Old 05-31-2011, 02:39 PM
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I have a flat bottom w Stelling boxes and -2 Shorties, gets on plane w the tabs down with 5 blades but have not tried other props yet.
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Old 01-10-2022, 07:51 AM
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I know this is an old thread but wondering if there was anymore input on this setup?
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