Tech
In an earlier RDP article, “Taking the Mystery Out of the X in X Dimension” it was discussed how that specific measurement was derived at before the rigger cuts a transom hole for the installation of a stern drive on a new boat. In the overwhelming majority of cases, boat manufacturers have...
Although many performance boaters assume that pure horsepower solves all problems, it doesn't. In most cases, what makes a great performing boat is a combination of proper set-up, balance, propeller selection, gear ratio, hull design and of course, horsepower. And within these critical factors...
(New Dual Down Shaft Lower Assembled)
Ask any marine repair shop involved in routinely servicing high performance boats,
engines and propulsion systems….“what’s the single most abused and broken
component encountered on a regular basis?” That’s easy, the standard Mercury Bravo
One...
https://youtu.be/UyQDXaq3_pU
Still figuring out the editing software for the Garmin, but this is a front view of 117 mph at the Billy B River Rockets event!
RD
To see the first article on this restoration please click the following link Rebuilding Forensic's Spectra 20 Part 1
Welcome to article two on the Spectra 20. In article one we water tested the Spectra leading us to discover that the engine had some potentially catastrophic problems. This led...
On a November morning back in 2013, I got a call from RD in regards to a project boat that needed some attention. RD wanted to have the jet rebuilt and some cosmetic upgrades done to the boat. Details were kept to minimum, but I did gather that the boat belonged to an RDP board member and...
This is the first segment of many more to come where Alexi from Boostpower will take us from the Basics of EFI, to Advanced Tuning! Stay Tuned Episode 2 will be broadcast in a few weeks! The first minute in and a half is Analog, but the video will switch to HD after that. (We had a...
Not that we will have a follow up Friday every week, but last weeks article "The Down Pedal" (Click that link to read) Got quite a bit of response, so we decided to dig a little deeper! Clyde Church was kind enough to send us some up close pictures of his system, and some more detailed...
If you are a modern day I/O boater you might not even know what a down pedal is in a boat. In V-Drives there is typically two pedals. A down pedal (or a switch on the dash or gunnel) and a gas pedal. V-Drives don't have "trim" like an I/O boat, so they have what is called "Cavitation Plates" on...
Last summer I started finding little traces of oil in the bilge of my boat. There didn't seem to be any rhyme or reason as to when they would show up. Sometimes I would run the boat hard, and there was no oil and sometimes there would be. Sometimes I would just idle around the keys and...
The Mercury Racing 525 EFI is one of the most popular OEM engine packages for adding forced induction. As almost all of these engines are now out of warranty, we are seeing a lot of interests in refresh projects and supercharger installs. A Conquest TopCat II recently came in looking for...
We have known since the introduction of the Mercruiser "cross ram" style intake manifold, that it is very restrictive for performance applications. They make good torque at lower RPM's, but fall short in supplying enough air to feed the engine in the higher RPM range (4500 and up). When...
Watch as Tim from www.performanceboatcandy.com takes us step by step through how to cut / buff your boat. All videos are unedited so you can see the process first hand and refer back to them later!
Unfortunately it was a bit hard to see with a white deck, the poor lighting we had and...
I had a couple months ago been wondering where I had been losing drive oil. It would be ever so slightly down in the reservoir but never saw an obvious leak. Every time I head to the water weather it was yesterday or weeks I check all my oil levels.
OD1 and I were going to hit the Sag 2 weeks...
Log exhaust manifolds, the most common exhaust system found on jet boats and v-drives. These exhaust systems aren't known for producing any big dyno numbers, but their simple design is very effective and functional. The rugged construction of these manifolds generally produces a long life with...
If you missed Part 1 in the Bad Vibrations? series, you can view it here. Bad Vibrations? Part 1
In the first article we were on the hunt for a bad vibration in this boat. We removed the jet from the boat, disassembled the jet and concluded that the jet was worn out, but not causing the...
This week we will showcase a boat we built for one of our many great customers. This particular individual has been a customer for many years. The boat is a 24? Schiada. It started life with Mercury 500EFI, Imco stand-off box and a Bravo I. It was originally rigged by Schiada and is a very clean...
Over the last 20 years the one question I get asked the most is, "Is my jet supposed to be making that noise?" With some noises being normal and some not, we are going to dive into a project that will reveal these noise making gremlins and how to fix them.
I have the perfect candidate, a 1989...
In this article we will be discussing what a little "test and tune" can do for your ride. In today's economy it often makes sense to keep your existing boat and upgrade it via a re-power, re-rig, or in a lot of cases just dial in the setup. Many people aren't even aware that their boats...
I'm Tom Manier Jr CEO and general manager for JJRT, Inc and Jet Boat Performance company. My interest in Hot Rods began as a preteen in the 60's after a single visit to a local airport drag race. I began building model cars and coasters, mini bikes and go carts and graduated to...
As President of Prime Marine, I bring 15 years of aftermarket industry
experience to marine industry. As a child, I grew up in Cucamonga with a strong interest in the mehanical world alongside my father and grandfather's mechanical skills. I spent a lot of time inside my parents and...
