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-   -   What makes a "fast hull" (https://www.offshoreonly.com/forums/general-q/312368-what-makes-fast-hull.html)

markt111 05-16-2014 07:16 AM

What makes a "fast hull"
 
so I have recently changed to a smaller boat due to lack of time to use, docking, family, reastoring an old house etc..I have a 1994 221 liberator with a 502 (375 at the prop) I picked it up last August to have something to trailer for occasional use. The boat is very clean and should work perfect for my needs. Everything I read tells me this is a 60-62 MPH boat. I have scene over 60 on GPS in it in the couple times I have used it with me the wife, the kid and full of fuel gear etc.. note this is running an old raker prop that looks like it is probably original and not exactly pristine

so i'm trying to figure out why this should only be a low 60 boat with 420HP, 21 deadrise, 4000lbs I know it is a fairly heavy hull for its size but I see others with 25'-27' boats with stock 502s claiming to run 70 and they are heavier or atleast as heavy

so what is it in the hull design that makes it fast? I am not talking stepped hulls either, I understand that

I do plan on buying a new prop and having it labbed once I get some accurate numbers early in the season

Black Baja 05-16-2014 07:29 AM

The x dimension is probably to low and it has a hook for safety reasons. Or there just isn't enough bout to have a high x and keep the motor under the hatch.

Black Baja 05-16-2014 07:31 AM

One other thing a good driver can be worth 3-10 mph.

markt111 05-16-2014 07:34 AM

BB, don't worry the "driver mod" is not going to be needed in this case

The drive is deep but the hull has no hook at all unlike the older Liberators

J-Bonz 05-16-2014 07:38 AM

A black jump suit and a few gold chains can make a big difference.....

Black Baja 05-16-2014 08:27 AM


Originally Posted by J-Bonz (Post 4122940)
A black jump suit and a few gold chains can make a big difference.....

Yes but you have got to ha a pink thong on under the black jump suit...

thirdchildhood 05-16-2014 08:48 AM

Spray on black hair helps too.

markt111 05-16-2014 09:00 AM

c-mon we all know Reggie needs a little help with his personal style,

but on a serious note is there that much difference in th hull itself or more that these manufacturers spend the time on set up to get every MPH out og thier hulls

wannabe 05-16-2014 09:02 AM


Originally Posted by Black Baja (Post 4122986)
Yes but you have got to ha a pink thong on under the black jump suit...


OOOH thats a visual I DON'T want to think about....

buck35 05-16-2014 09:51 AM

I would think that weight distribution would play a role in speed, so different props change your attitude in the water depending on what your after. My 02


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