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Nissan eventually plans to phase out the V6 for a turbocharged four-banger

Looming EPA regulations have resulted in big changes in the automotive world. We've seen a number of V8 engines give way to turbocharged V6s, while V6 engines in midsize sedans are being tossed or replaced with turbocharged inline-4s.
 
We're also on the cusp of seeing huge weight reductions for iconic automotive nameplates. The Ford is reportedly eyeing a 700-pound weight reduction for the next generation F-150 and a 400-pound weight reduction for the next Mustang.
 
According to a new report from Motor Trend, another fan favorite is going on a diet all in the name of performance and fuel economy concerns. The next generation Nissan Z (codenamed Z35) will lose two inches in width and a whopping 400+ pounds. The huge weight reduction would put the next generation Z below 2,900 pounds.


2013 Nissan 370Z
 
Motor Trend's sources indicate that while Nissan plans to offer the next generation Z with a V6 when it launches, the "master plan" is to phase out the V6 entirely in favor of a turbocharged, 2.5-liter inline-4. The turbo four will reportedly pump out 330hp, putting it on par with the 3.7-liter V6 used in the current 370Z.
 
The weight reduction and move to four-cylinder power should allow the new Z to achieve EPA numbers far better than the current car’s 18/26 mpg (city/highway) with a manual transmission.

Source: Motor Trend



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By 91TTZ on 8/28/2013 4:59:18 PM , Rating: 2
quote:
Power takes gas. Your comparison here isn't ideal. You're comparing a turbo 3 litre to a 3.7 litre naturally aspirated.


Even the 3L NA V6 in the non-turbo Z gets poor fuel economy. That only has 222 HP but it still doesn't do much better than the TT version.

quote:
If you are towing 10k pounds up a hill, you will get V8 numbers, but if you're just idling along the freeway, your numbers will be comparable to a V6.


That's not how it works at all. Your required fuel is going to be proportional to the efficiency of the engine and the power it needs to produce. The Chevy V8 in their truck gets better fuel economy than the Ford Ecotec even when cruising on the highway.

quote:
That is the beauty of turbo, it is there when you need it, and only adds a bit of weight when you don't.


The turbo requires that your engine run a lower compression ratio than the non-turbo version would. This means that you lose some efficiency. Also, the turbo is a bit of a restriction in the exhaust stream.


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