HKS Nissan 350Z Supercharged – Featured Imports – Import Tuner

13 Jan 2015 | Author: | Comments Off on HKS Nissan 350Z Supercharged – Featured Imports – Import Tuner

HKS tunes the 350Z inside out

HKS, however, doesn’t ever mess around. The famed tuner company has been cranking out parts and innovations since Hasegawa met Kitagawa and joined with Sigma Automotive Co. Ltd.

From the heart-stopping carbon-fiber time attack Altezza and TRB-’02 Evolution to Taniguchi’s infamous S15 D1 drift car, HKS has always put its best foot forward when building. This 2002 Nissan 350Z Track Edition would prove no different.The 350Z aftermarket is exploding at a rate unseen since the glory days of Honda’s B series. It’s no wonder with Nissan common-platforming its cars.

If you develop for one VQ-equipped sled, chances are you’ve just done research for another ride. Vortech, Stillen, GReddy, APS, Turbonetics, everyone has jumped onto the VQ big rig, offering an assortment of single-turbo, twin-turbo, centrifugal-supercharger and positive-displacement supercharger kits for the Nissan 350Z and Infiniti G35. Logically, it was big news when HKS introduced its Rotrex supercharger system.

An altogether different design than any supercharger unit on the market, the Rotrex is a centrifugal blower unit, but not quite like the conventional gear-driven design. Internally, the Rotrex uses fixed-ratio steel planetary rollers instead of gears, promising less noise, greater efficiency and no need for gear maintenance.

Lubed and cooled by specially formulated Traction Oil, the Rotrex kit includes a front-mounted oil cooler to ensure cool oil temps, and the only maintenance required is a 60,000-mile Traction Oil oil-change. Although packing a hefty $7,250 MSRP, the Rotrex kit includes everything you’ll ever need to run it, with typical HKS quality and pending CARB approval.

But enough of the sales pitch stuff, how well does it work? Try 400 hp and 353 ft-lb of torque on VP Racing 100-octane gasoline. Although promising an 80-hp power increase at the wheels, the off-the-shelf Rotrex kit wasn’t good enough for HKS’ 350Z.

Specially prepared for HKS USA, the compressor housing was ported and a prototype 9.5-psi pulley was fitted to the supercharger to replace the standard 7-psi unit. The standard upgraded fuel pump was used, although the two auxiliary 525cc injectors were dumped in favor of upgrading all six injectors to 650cc units. Controlling those injectors is an HKS F-CON V Pro D Jetro standalone engine management system, tuned by HKS USA.

The standard intercooler included in the kit was also dumped, replaced with a larger prototype S-Type front mount. The included bypass valve was replaced with an SSQV blow-off valve, made by HKS–obviously.

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