Each year, the most formidable diesel trucks gather in Indianapolis for the Ultimate Callout Challenge. Even if you’re not aware of this event, there’s a good chance you’ve encountered videos from it—especially if your feed occasionally features Cummins-powered trucks. Unfortunately for the tuners and shops involved, those videos can sometimes capture a truck bursting into a huge fireball on the dyno. Such was the situation last weekend for JBJ Diesel from Idaho.
Jake Rodriguez’s third-gen Ram was performing exceptionally well on the dyno until the nitrous controller malfunctioned. The power output at the moment of combustion was impressive—2,695 horsepower with more revs available—but regrettably, the engine gave out first. You can witness the wreckage from various perspectives below:
When I mention that the truck was on track for an even greater figure, keep in mind that it has previously surpassed the 3,000-hp milestone. This stunning, red single-cab achieved 3,342 hp at last year’s Diesels in the Mountains competition. Whether it could have surpassed Poor Boys Diesel’s peak of 3,825 hp at the UCC dyno event remains uncertain.
Rodriguez and his team installed a backup engine for the remaining UCC rounds, which included a sled pull the following day. He shared a sneak peek of that replacement Cummins in a video about a month ago, and I must admit, that machine likely has more money invested in it than my home. (I suppose that’s the advantage of living in a mobile home.)
You can be sure that JBJ Diesel hasn’t finished with the rig just yet. It will undoubtedly be back on a dyno soon, and they have another year to prepare for UCC 2027. Based on what I’ve observed from the shop, they will have a real competitor ready—and it will be aesthetically pleasing as well.
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**Cummins Ram Reaches 2,695 HP on Dyno Test Prior to Engine Failure**
In an extraordinary showcase of engineering capability and performance tuning, a modified Cummins Ram pickup truck recently recorded a remarkable 2,695 horsepower during a dyno test. This feat has attracted considerable interest within the automotive community, highlighting the capabilities of diesel engines under extreme modifications and tuning.
### Background
The Cummins engine, renowned for its reliability and torque, has long been cherished by truck fans and performance tuners alike. Ram trucks fitted with Cummins engines are especially favored in the diesel performance scene, where enthusiasts strive to push the boundaries of what these engines can accomplish. This recent dyno test serves as a testament to the prowess of the Cummins platform when integrated with advanced tuning and aftermarket upgrades.
### The Dyno Test
During the dyno test, the modified Cummins engine was put through rigorous conditions to assess its horsepower output. The truck was fitted with an array of high-performance upgrades, including enhanced turbochargers, improved fuel systems, and advanced engine management technology. These alterations are vital for achieving such elevated power levels, as they permit increased air and fuel flow, which is crucial for optimizing combustion efficiency.
The assessment was performed on a dynamometer, a device that quantifies the power output of an engine. The results were astonishing, with the engine hitting a peak of 2,695 horsepower, a figure that is unprecedented for a diesel pickup truck. This caliber of power is typically associated with specialized racing setups rather than standard consumer vehicles.
### Engine Failure
Despite the impressive horsepower figures, the engine ultimately failed during the test. While the specific details surrounding the failure remain undisclosed, it is common for engines to fail under such extreme conditions. The combination of high horsepower, elevated boost pressure, and modified components can impose significant strain on engine internals, resulting in potential catastrophic failures.
The breakdown serves as a reminder of the constraints of mechanical components, even in highly modified configurations. It underscores the need to balance performance with reliability, a challenge that many enthusiasts encounter while pushing their vehicles to the limit.
### Implications for the Diesel Community
The achievement of 2,695 horsepower has ignited conversations within the diesel performance community regarding the potential of Cummins engines. It raises important questions about the future of diesel performance and the ongoing quest for greater power outputs. While this particular test culminated in failure, it simultaneously inspires engineers and enthusiasts to continue innovating and exploring the limits of diesel technology.
### Conclusion
The Cummins Ram’s achievement of 2,695 horsepower on the dyno marks a significant milestone in the realm of diesel performance. It illustrates the incredible potential of these engines when modified for extreme output. However, it also serves as a cautionary lesson regarding the limits of mechanical reliability under such conditions. As the diesel performance community continues to progress, this dyno test will undoubtedly be remembered as a pivotal moment in the pursuit of ultimate horsepower.