The 2025 XINSURANCE Great Lakes Grand Prix brought top offshore powerboat talent to Michigan City, Indiana, for another year of high-speed competition on Lake Michigan. TNT is proud to be represented by Johnny Tomlinson in two competitive classes. From rookie pairings to veteran-level challenges, the weekend delivered both podium finishes and critical insights. While one…
The 2025 Great Lakes Grand Prix returns to Michigan City, IN on August 2 and 3, bringing some of the top names in offshore powerboat racing to the southern shore of Lake Michigan. Among them is veteran throttleman Johnny Tomlinson, who will be competing in two different classes over the weekend. In the Factory Stock…
Marine electrical systems demand more precision and care than their land-based counterparts, especially when it comes to grounding. A poorly grounded boat can lead to safety hazards, equipment failure, or even accelerated corrosion. For both seasoned captains and novice boaters, understanding how to correctly ground a vessel is critical. While the principles of grounding remain…
Proper motor rigging is essential for safe, efficient boat operation. Whether you’re outfitting a new boat or upgrading your current setup, understanding the key rigging components can improve performance and reliability. Each element of the system plays a specific role in engine control, stability, and fuel efficiency. This guide offers a straightforward breakdown of boat…
Boat trailers play a crucial role in transporting and storing watercraft safely. Regular maintenance of your boat trailer helps prevent breakdowns, prolongs its lifespan, and ensures safety on the road. Neglecting simple upkeep can lead to expensive repairs or even accidents. In this article, we’ll explore key maintenance tips that every boat owner should follow…
TNT Custom Marine wishes you a powerful and patriotic Fourth of July! Wherever the waves take you, may your holiday be filled with freedom, fun, and fireworks. Stay safe and enjoy the ride!
Selling a boat can be a complex and time-consuming process, especially if you’re not familiar with the intricacies of the boating market. Many boat owners find themselves overwhelmed by the tasks involved, from advertising and showing the boat to negotiating with potential buyers and handling legal documentation. A professional boat brokerage simplifies this process, leveraging…
Staying safe at the marina is essential for all boaters, whether you’re a seasoned captain or a weekend enthusiast. Marinas can present unique hazards, from slippery docks to electrical risks. Understanding proper safety practices can prevent accidents and protect both people and vessels. This guide outlines 12 practical safety tips to help every boater navigate…
John Tomlinson, co-owner of TNT Custom Marine, is set for a high-powered 2025 offshore racing season. He’ll throttle in Pro Class 1 alongside Carlos de Quesada in Alegra Motorsports’ brand-new 45-foot Victory catamaran. Tomlinson will also team up with 18-year-old Caleb Mead in the Factory Stock class, running the Mead Family Racing MTI 390XR. With…
High-performance marine rigging is a critical factor in maximizing the speed and efficiency of offshore boats. At TNT Custom Marine, rigging is more than just hardware—it’s a carefully calculated system designed for precision and performance. The right rigging setup can enhance stability, reduce drag, and help achieve optimal engine output. In this post, we explore…
National Safe Boating Week, held annually in May, promotes responsible boating practices to ensure safety on the water. This initiative, supported by the National Safe Boating Council, educates boaters on critical safety measures. For TNT Custom Marine’s community, this week is a reminder to prioritize safety while enjoying high-performance boating. Preparing properly can make every…
When it comes to getting the most out of your Mercury outboard, horsepower is only part of the performance equation. Torque plays a critical role in acceleration, handling heavy loads, and getting your boat on plane quickly. At TNT Custom Marine, we specialize in rigging high-performance boats with Mercury’s most advanced outboards—engines built to deliver…