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Why are RIBs off-the-rails expensive?
Thread Starter: pcrussell50
Seems like they always have been, too.

Here's an example: a ten footer, 2010 model with a 40hp Yammie: $15,000

https://sandiego.craigslist.org/csd/...662262123.html
Last Post By: Scream And Fly Today, 03:32 PM

WTB 21-23' Tunnel Outboard
Thread Starter: Fullthrottleguy
Looking for a 21-23' tunnel.
With or without power, single outboard or twins.

Cougar, DCB, Talon, Eliminator, etc.
Last Post By: Fullthrottleguy Today, 03:27 PM

WTB 2.5 oiler crank
Thread Starter: Jay Smith

WTB 2.5 oiler crankshaft in good shape from 200-225 promax need ALL journals to be perfect …..

call me 832 597 2603 cst if you got
Last Post By: Jay Smith Today, 03:27 PM

Mercury Through The Years...
Thread Starter: FUJIMO
Last Post By: FUJIMO Today, 03:15 PM

New to me 2.4L Bridgeport EFI no start / fuel system questions
Thread Starter: mxr181
Hi all, first post here. Just picked up an open bow Baker mod vp hull with a 2.4 Bridgeport EFI motor that was mounted on the boat but not finished being
Last Post By: skialot2 Today, 02:48 PM

Help missing divider plate 181032
Thread Starter: skialot2
Hi all. I picked up one of the earliest 2.0 175 Merc V6 powerheads. Choke flap carbs, before oil injection. It's serial # 4303839. It's supposed to be
Last Post By: skialot2 Today, 02:04 PM

Sportmaster, 1:87, straight skeg, 20", big shaft. $3100
Thread Starter: graynester
Just as it reads. See pics in perfect working order gone through at colabellas less than 5 hrs run time ago. 941 416 6071 B
Last Post By: 25two.stroke Today, 01:47 PM

Tricks that old racers get up to after retirement
Thread Starter: jackiewilson
I think I kinda jump on everybody else's threads and it's not long before they get pissed of with me, so if I do my very own thread I can't upset anyone
Last Post By: C.G. 125 Today, 01:24 PM

WTB Evinrude 60hp High Output (HO)
Thread Starter: pazzlee
looking to buy a evinrude 60hp high output (HO). in good working condition. tiller handle is a plus. thanks!
Last Post By: pazzlee Today, 01:12 PM

Facts about Evinrude/Johnson racing outboards made my OMC
Thread Starter: lars strom

By Lars Strom

Starting with: Paris 6 hours 1973..OMC V6 victory over Team Mercury.

Last Post By: WaterZebra Today, 01:02 PM

Dual plug land and sea 2.4 heads
Thread Starter: 62 bugzilla
I saw a set of these are they a gimmick or tru performace add on?
Last Post By: wogi Today, 11:45 AM

WTB - 300 Pro Max or 300X w/ Sporty
Thread Starter: speedingbullet
Looking for a 300....located in Texas would prefer to pick up but have contacts and work locations around the country if needed.

Thanks in
Last Post By: speedingbullet Today, 11:14 AM

Shootout to air Sunday CBS, Lake of the Ozarks
Thread Starter: CUDA
https://www.speedonthewater.com/category/in-the-news/

Lake Of The Ozarks Shootout Airing On CBS Sports Network This Sunday
Created:
Last Post By: Li'l Toy Today, 11:10 AM

2011 300xs
Thread Starter: triton123
For sale: 2011 300XS
245 hours
excellent shape
$16,000
Last Post By: speedingbullet Today, 11:10 AM

For sale 22 progression
Thread Starter: adventurehound
2004 22 progression, 2003 250 XS optimax approx. 201 hours
torqmaster lower, 28p trophy+ prop, stainless marine hydraulic jack plate
smartcraft
Last Post By: sonicss33 Today, 11:03 AM

Performance Tech
Tech Guide: Wiring Your Boat The Right Way
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Scream And Fly

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Published on 08-08-2018 11:30 PM
A Complete Guide to Marine Wiring ▼

This article was originally published on Scream And Fly back in 2004 on our old website. Like most tech-related articles, they don't lose their relevance over time, and I think that is especially true of this one. I cannot overstate the importance of proper wiring, both for performance, as well as safety.

The electrical system of your boat is its lifeline. Every system on the boat depends on it, including the engine, yet it is often neglected or its importance is underestimated. You need reliable gauges and wiring to monitor engine operating status and other vital information. Since your wiring is the only link between your gauges and engine, faulty wiring could cost you a lot more than just an afternoon and a spool of wiring. We enlisted the help of Marine 2000 located in Long Island, New York to assist us in illustrating proper marine wiring techniques.

...

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Porpoising - Why It Happens and How To Fix It

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Published on 02-02-2017 05:53 PM

Performance Tech: Why Does My Boat Porpoise? ▼

By Jim Russell, P.Eng

Wouldn’t it be nice to be able to know why your boat has a tendency to porpoise? And nice to know how you can improve or eliminate a porpoising problem? The causes of porpoising and how to correct it are frequently mystifying accounts. Here is an explanation of porpoising, how to design to mitigate the potential for porpoising and how to fix it when it’s a problem.

What is Porpoising?
Porpoising is the cyclic oscillation of a boat in pitch and heave, of sustained or increasing amplitude, occurring while planing on ...

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Gearcase and Propeller Blowout - Why It Happens and How To Fix It

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Published on 03-10-2016 01:34 PM Number of Views: 136773

By Jim Russell, P. Eng, Aeromarine Research

I receive many questions about the cause and effects of "blowout". Here is an explanation of blowout and causes and cures.

Most all high-performance boaters have experienced the circumstance that restricts their maximum velocity to less than it could be, even though they’ve got the horsepower available to use. This phenomenon is commonly called "gearcase blowout” or "propeller blowout".

Blowout occurs when something causes air/water mixture in the region of the propeller to become sufficiently disturbed that the ...

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The Bottom Line: How a Pad Makes a Vee-Hull Faster

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Published on 11-13-2013 08:33 PM

By Jim Russell, Aeromarine Research

The Vee-bottom hull is the most common design in modern performance powerboats. The Vee design has a number of variations and near-endless modifications – including the pad-vee design - that can enhance particular handling characteristics of the boat. If going fast is the objective, it’s worthwhile knowing just how a vee pad can affect vee hull performance.

I’ve had many inquiries about vee hull modification, vee-pad hulls and pad modifications. High performance vee pad hulls must be carefully designed for each boat, as the balance of lift from the pad is crucial. The good news is that there are ways that we can engineer our way to the best performing ...

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A Walk On The Wild Side: Chine Walking - Why It Happens and How To Fix It

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Published on 02-13-2013 12:11 AM

Chine walking can arise with any high performance vee-hull. Chine walk is an aggressive, often rapid, side-to-side oscillation of the hull. Acute cases of chine walking grow more severe by themselves – called a “self-excited oscillatory instability”. Really severe cases can see the boat bouncing from one chine to the other chine – and some hulls can chine walk in the middle of a turn! It can be a scary ride for even the experienced pilot. So let’s explore the facts of “chine walking” – why it happens ...

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