Nissan plans to make a big splash with its second-generation Titan pickup truck.
While its been well known that the next-generation Titan will feature an optional turbo-diesel engine manufactured by Cummins, details on the powerplant have been light. It is expected that the 5.0-liter V8 mill will generate over 300 hp and 500 lb-ft of torque, but how? Well, Cummins has finally detailed the technology for the engine, which its calling a Holset M2 Two-Stage System with Rotary Turbine Control. Yep, it’s a mouthful but we’ll try to break it down in plain language.
The powerplant will feature a pair of sequential turbos to provide boost at low engine speeds with a smaller turbocharger that will spool up sooner while the larger turbo will take over taking over at higher revs helping raise the overall boost pressure and peak power.
While sequential turbos are nothing new in the industry, – Daimler’s widely-used 2.1-liter turbo diesel four-cylinder uses the same principal– Cummins has innovated the technology with the 2016 Nissan Titan in the form of the Rotary Turbine Control. Essentially a single electrically-controlled valve, the Rotary Turbine Control helps direct the exhaust flow to either of the two turbochargers or a wastegate depending on the engine speed and load. The unit can also act as a throttle in the exhaust stream, helping increase backpressure to act as an exhaust brake when the driver lets off the gas pedal.
Luckily it’s just a few more months before Nissan debuts its 2016 Titan at the 2015 Detroit Auto Show, so expect more details when the pickup finally debuts early next year.
GALLERY: Nissan Titan
[Source: Car and Driver]
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