Innholdsfortegnelse for April 2023 i Diesel World

If you’ve never heard of a Chevrolet Viking, don’t feel bad. A lot of folks haven’t, especially those that primarily dabble in late-model diesels. Now picture someone taking a ’59 version of the aforementioned medium-duty classic and transforming it into the rarest of finds. Hannah Wheat did exactly that with her ’59 Chevrolet Viking 60, a project that called for a 24-valve Cummins and NV4500 swap, a hybrid of modern Ram chassis’, full air-ride suspension, and a whole lot of thinking-outside-the-box. Partnering with her husband, Cory of Cory Wheat Customs, the build consumed a pile of late nights and early mornings until it was finally road-ready. Now, Hannah daily drives the frame-laying, Cummins-swapped rat-rod dually. This is her story. MEANT TO BE Though Hannah didn’t initially set out to build…

With the structural and survivability side of the power-making equation figured out (at least for now), Van can focus on finding more—and with any luck, usable—horsepower. According to him, the magic to unlocking more horsepower comes from good cylinder head flow and ever-advancing injector and injection pump technology. “There is no magic in camshafts,” he tells us. “Once you get a cam in the right zip code, you can really only gain 5 hp one way or the other.” On top of cutting-edge cylinder heads and injection components, good airflow via turbos and air temperature are a big part of the power-making puzzle. Van tells us that for every one degree you drop your intake air temps below ambient you gain 10 hp on a Super Stock engine. Needless to…

This Ford Super Duty project is nearing an end but not before we finalize a few finishing touches to really dial in the drivability and overall performance of the old 7.3L under the hood. Project My2k has made quite the transformation over the past year and continues to outperform initial expectations. The new suspension, steering and power upgrades have made this truck extremely dependable to daily drive, while handling our towing needs when we need it to. We’ve installed one of KC Turbos new 63mm drop-in replacement turbos, and paired with the Edge Revolver tuning, it feels pretty strong down low while towing. Unfortunately, didn’t see the change in peak boost and top end we were expecting, and had to spend some time performing some diagnostic checks. After checking for…

If you’ve been to a truck pull over the past 15 years you’ve likely noticed an innumerable amount of vehicles wearing a Haisley Machine sticker. There is a reason for this. From Limited Pro Stock to Super Stock, the company has built a name for offering high-horsepower, championship-caliber engines with rock-solid reliability. At the heart of the Haisley name is its owner, Van Haisley, the man who—along with his son, Curt—brought the sleeved and deck-plated 6.7L Cummins to the diesel world. Coined the “Super B,” it was an engine platform that could be campaigned an entire season without the need to worry about anything other than oil changes. Eventually however, the outer limits of what the OEM Cummins block could handle were exceeded. Like other engine builders, Van turned to…

Specialty Equipment Market Association, better known as SEMA. SEMA is the biggest, loudest, fanciest, most expensive car show you’ve ever been to. Or, if you’re not personally affiliated with the automotive industry, it’s the biggest, loudest, fanciest, most expensive car show you’ve never been to. SEMA is the car prom and only “industry” is invited. SEMA is tight with their show badges and their scrutiny is the stuff of legend. But we have you covered. For those unfamiliar with SEMA, here is how SEMA describes itselves: The SEMA Show is the premier trade show geared to help small businesses thrive and succeed. The trade-only event enables automotive specialty equipment manufacturers to display alongside automotive manufacturers to debut new, innovative products, and connect with industry buyers from all over the world.…

Special thanks to Larry Mayer The Deutz name goes back a long way, back into the dawn of diesel in the late 1800s and the early days of tractors in the early 1900s. We have covered Deutz, and many of the corporate roots several times in Tractor Talk, but a close relation to the subject of this story, a 1976 Deutz D7206, appeared in the February, 2020, issue of Diesel World. Klöckner-Humboldt-Deutz (KHD) was one of the founding corporate fathers of diesel engines and of internal combustion itself. It has roots back to Nicolaus Otto, who perfected the four-stroke cycle we now call the Otto Cycle and can lay claim to a whole bunch of other internal combustion firsts. You can read more about those thrilling days of yesteryear in…

Since 2011, General Motors’ HD line of trucks has been tough to beat. Powerful Duramax V-8’s in the LML and L5P, robust Allison transmissions in the six-speed 1000 and the GM-built 10-speed 10L1000, a solid chassis design that includes a fully boxed frame, a heavy-duty independent front suspension system, and a towing experience that matches or bests each of its crosstown rivals has given Chevrolet and GMC fans much to be proud of. For 2024 models, the General aims to drive its HD trucks one step closer to perfection. With its first major redesign since 2017, GM is adding a slew of towing-assist technology, a new front face, and is introducing two high-end trim levels it anticipates will sell well. Of course, the General is also bumping up the Duramax’s…

Before we had the mega-horsepower machines we have today, Super Stock competitors were running factory, cast-iron blocks—and they lived on the edge with virtually every pass they made. Shortly after the release of the 6.7L Cummins, an engine that came with thicker cylinder walls than the 5.9L thanks to its siamese cylinder bores (and that was readily available vs. the scarce billet block availability at the time), Van decided to make the 6.7L block the foundation for the Haisley Machine Super B program. For added reinforcement, a bedplate was utilized to tie the main caps in with the lower portion of the block and the block’s water jackets were filled with concrete. The block was also machined to accept ductile iron sleeves and fitted with a 1-inch thick deck-plate to…

Is there anything better than hanging out with your buddies at a diesel event? Apparently, it’s a pretty good time, because more than 5,000 participants and spectators made the trek to sunny Sacramento, California, for Truckmania 2022. This event has virtually everything, from an enormous show n’ shine with hundreds of trucks, to drag racing, a burnout contest, and of course sled pulling. There’s also a Tough Truck Challenge and UTV race between the drags and just in case you want zero breaks in the action. Since Truckmania is open to all trucks (not just diesel) there’s always some good gas vs. diesel action. Like we said, it’s a good time. The morning kicked off with the giant truck show, most of whom had arrived and camped the day before.…

Special thanks to Mike Murphy In the late 1800s and early 1900s, Rudolph Diesel had a worldwide stranglehold on patents related to his four-stroke compression ignition cycle. Engineers found they could get partway there without being sued for a patent violation and that’s how the oil engine came to be. We talked about Herbert Stuart-Akroyd and his invention of the four-stroke vaporizing oil engine in England (see it at www.dieselworldmag.com/diesel-engines/vintage-diesels/beating-dr-diesel) and how that engine offered a lower cost engine that could operate on a variety of heavy fuel oils. An enterprising German emigrant named Carl W. Weiss did something similar in the USA, with a few clever tweaks. MIETZ AND WEISS Carl Wilhelm Weiss (1858-1940) was born in Prussia and attended engineering school in Holland. He travelled to the U.S.…