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Fountain 38 lightning topspeed

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Old 07-13-2018 | 12:39 AM
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I would be concerned about the 300 rpm difference
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Old 07-13-2018 | 06:39 AM
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Originally Posted by Griff
I would be concerned about the 300 rpm difference
Agree.
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Old 07-13-2018 | 07:33 AM
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Originally Posted by Wildman_grafix
My report has 84 on it, I normally can hit 85, lots of time 82-83 no problem full fuel load easy.

My buddy just got a 35 EX with 525's and report has it at 88, there is issues with props on his but so far we have seen 87 with him, me, and our wives, lots of fuel, junk they take and Florida heat (two weeks ago).

Those reports are really pretty nice, they show how the boat was ran and set up to hit the posted speed. I don't remember seeing other manufactures doing that but maybe they did.
All that said you defiantly need to start looking at things.
Your numbers show prop slip 25% - 28%. Something not right.
WG,
Hustler does test reports, got 1 each for the Talon (88mph with 496 HO, which is not in the boat anymore), and 388, (90mph).
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Old 07-13-2018 | 07:58 AM
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Originally Posted by Dean Ferry
WG,
Hustler does test reports, got 1 each for the Talon (88mph with 496 HO, which is not in the boat anymore), and 388, (90mph).
Thanks,
Dean
Cool Dean and yes I think the little Hustler does just a bit more then that now! LOL

You going to the pirate party Saturday?
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Old 07-13-2018 | 08:15 AM
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[QUOTE=Wildman_grafix;4637425]Cool Dean and yes I think the little Hustler does just a bit more then that now! LOL

You going to the pirate party Saturday?[/QUOTE
WG,
yes, if I don't have to work....
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Old 07-13-2018 | 10:15 AM
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Your leaking trim hose may be the problem with your RPM split, (drive tucking in due to leaking hose).
that would also scrub off some speed.
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Old 07-14-2018 | 07:05 PM
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Originally Posted by Marginmn
The semi-staggered 38 should run over 90 with ease. You have either some very tired mills or some hook in your hull - or both.
Agreed, reality is a staggered 38 should run low 90's pretty easily. Have run side by side with a couple in some local runs at 92 - 93. Your numbers are off, something is wrong. All the BS over the years about the Fountain factory reports are just that. If you know how to run the boat you should be able to run the number they show on the report.
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Old 07-15-2018 | 01:31 PM
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Originally Posted by Bjornj
Hello.
New owner to a 2005 38 lightning with 525 efi bravo Xr semi stagered.
Im not pleased with the topspeed. I get 75mph 79mph one time. Testreport says 93mph.
I get 5000rpm on Stb engine and 5300 on port.
Drive setting 4or 5 on indicators.
I have bravo 32p. Props.

What at are your ideas? Anyone with same boat? Top speed?

Looking forward to hear from you.
My thought is to now send your props to a prop shop and see what you have. Also check prop shaft height from the bottom of the boat to confirm they are equal.
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Old 07-15-2018 | 02:05 PM
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Yes I’m gona send my props to a propshop. (Talked to them yesterday). Also want to confirm I have the correct gear ratio.
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