One of Diamond Marine's first magazine ads, circa 1992.  Note the introduction of the 2.5 EFI Mariner.

In 1996, Diamond Marine relocated to Fort Lauderdale, Florida.  The 8,000 square foot facility is one of the most comprehensive and advanced in the world, with the ability to perform any modification or custom fabrication in-house.  The facility can accommodate numerous boats at the same time, with hull sizes of up to 40 feet. 

But it’s not only the size of the facility that sets Diamond Marine apart – it’s the comprehensive set of state-of-the-art equipment.  The equipment at Diamond Marine includes a custom computerized powerhead dynamometer, a crankshaft balancer, a Sunnen CV616 cylinder king hone, custom fabricated boring bar, T.I.G. welders, 18” and 36” vertical band saws, steel shot-peening equipment, manual vertical milling machine, manual lathes, surface grinder, two 10” X 72” belt sanders, pedestal and bench grinders, two ultrasonic cleaning tanks, a Kasto 30” power hack saw, crankshaft polisher, sheet metal brake, rollers , tubing bender, two drill presses, automatic  tapping machine, high pressure detergent block washer, and practically everything else imaginable. In addition to the air-conditioned machine shop alone comprising of 2,200 square feet, the shop has a dedicated grinding room for block porting, a paint spray booth, gearcase department, disassembly and cleaning area, a custom eight-station clean and parts room for final assembly, show room, conference room, and shipping office and rigging / service area.

Joe Signorelli designs Diamond Marine's products in-house.  All design and production takes place at Diamond's facility.

The Diamond Marine facility also features an EDM which is used to make their lightweight crankshafts and other specialty products. One of the most impressive pieces of equipment on their site is their 44” travel 50 taper Kuraki CNC vertical mill. A few years back they added a 25 H.P. slant bed CNC lathe to their arsenal. Some of you may be familiar with how a CNC works, and you’ve probably seen one in action on television shows such as American Hot Rod. These huge machines require detailed programming and absolute precision, since mistakes can be very costly in both materials and time. For this task, Joe uses the latest Mastercam software to run his CNC machines, producing works of high performance art from solid blocks of metal.

Diamond Marine STV at a St. Louis race in 1991.  This boat led the race until a cracked fuel rail resulted in a second-place finish.

Diamond Marine’s “mail order “parts sales is also an important facet of the business. Customers have long come to rely on their experience to advise them on the parts they need and as important, the parts that they do not need. With the popularity with the internet, there are more places to buy parts than ever, however in the performance world accurate advice cannot be read in a parts breakdown. These parts include OEM Mercury engine parts as well as quality aftermarket accessories.

If Joe and Marty need it, or if you can think of it, Diamond Marine can make it.  New products are always under development, and the two brothers often can be found testing on the clear waters of Florida’s Atlantic Ocean, rivers and lakes.

This year marks the brothers' 30^th year in business together and they still look forward to helping the racer as much as ever.