Immediately, you can see that things are a bit different on Chapman’s 5.0L Cummins. Rated at 310hp and 555 lb-ft at the flywheel but known to belt out 280rwhp on chassis dynamometers, these engines were either underrated from the factory or the A466ND Aisin transmission is just that good. Last but not least, a Holset M2 two-stage turbo system made for instant torque and squeaky clean emissions in stock form. Assembled at Cummins’ Columbus, Indiana engine plant, the 90-degree V8 utilizes a compacted graphite iron crankcase, aluminum heads with four valves per cylinder, dual overhead cams and composite valve covers. While the 5.0L Cummins V8 under the hood of Chapman’s ’16 Nissan doesn’t look like this anymore, it’s important to know what he was working with from the factory. We recently caught up with Chapman for a glimpse inside his record-setting Titan XD. The best part? Doubling the factory horsepower rating did nothing to hinder its street manners or drivability-and Chapman still hooks it to his 12,000-pound camper on the weekends. To our knowledge, this makes it the most powerful Nissan Titan XD Cummins in the world. After performing what most automotive enthusiasts would consider to be mild modifications (namely tuning and a turbo upgrade), Chapman’s ’16 model sends just under 550rwhp to the pavement.
Since getting his hands on one a few years ago he now operates CFT Performance, a business that specializes in Titan XD diesel performance and consumes most of his waking hours.īut why is Chapman so busy? As it turns out, in the rarely-exposed world of Titan XD performance, the 5.0L Cummins V8 is a powerhouse with loads of untapped potential. Makes sense, right? Josh Chapman doesn’t think so. The Cummins option is cool but it isn’t an inline-six, so you might as well just stick with a Ram 2500. It’s not quite a ¾-ton, not quite a half-ton and no one wants a 5/8-scale truck. It’s not a Ford, Ram or Chevy, so it’ll never catch on. The Nissan Titan XD diesel is a neat concept, but since its inception, many traditional North American truck buyers have used every excuse under the sun to avoid them.
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