PRODUCT R&D
HARROP ARMS TITAN FOR BATTLE Following hot on the heels of the launch of its TVS Supercharger for the Ram 1500, Harrop is eagerly awaiting the day that the Nissan Titan might land in Australia “The Titan is an absolute cracker of a truck,” Harrop Engineering General Manager, Heath Moore, said. “Nissan Australia has expressed a desire to release it down under, and given the popularity of American big dual cab utes and the Nissan brand in Australia we believe it would be a big success.” Harrop’s US team has a Titan in their fleet, and it has quickly become the go-to due to its versatility, handling and comfort, and of course, performance. “The Titan has the same 5.6-liter direct-injection V8 as the Y62 Patrol, so we have engineered our hugely popular TVS Supercharger to give the Titan a boost in performance,” Heath explained. Harrop’s US team sourced a 2019 Pro 4X as the development rig for engineering validation. Starting with the highly efficient and OEM validated TVS2300 technology, made in the USA by Eaton, the team set about adapting it for use on the 2016 and up Titan range. “We changed the position of the throttle body, to provide a free-flowing intake path and integrated it neatly with the factory air box,” said Heath. “The supercharger is positioned prominently on top of the manifold assembly to deliver direct boosted air through the thick tube and fin intercooler into the cylinder heads.” Harrop’s TVS2300 positive displacement Supercharger delivers 2.3 litres of air per
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Australian Automotive Aftermarket Magazine February 2021
revolution into the Titan’s 5.6 litre V8 and offers unrivalled thermal efficiency and performance as highlighted in back-to-back tests. Harrop put its completely stock, naturally aspirated Titan on the roller dyno to provide a baseline. The completely stock 2019 Pro 4X put down 296-wheel horsepower and 310 foot-pounds of torque at 4000rpm peak. With the new Harrop supercharger fitted, the Titan was strapped back onto the dyno and recalibrated with HP Tuners to put down 398 horsepower and 420-foot pounds of torque at the lower 3000rpm level with a peak boost of just 6psi. “That’s an impressive 34 percent increase in peak power, and a 44 percent increase in torque
achieved lower in the rev range,” said Heath. “On the road, the Titan comes to life, making it a cracking drive.” Harrop prides itself on developing supercharger kits that look as if they were OEM factory fitted and the Titan set up is no exception. All factory accessories, including the air conditioning, are retained, and there is no need for cutting or fabrication to install the TVS2300 supercharger. “Our fundamental design objective is to achieve OEM levels of finish and vehicle integration,” Heath explained. Harrop sources the latest intercooler core configuration technology for thermal efficiency from its cooling partners, ADRAD.
