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Infiniti will turn to turbocharged 4- and 6-cylinder engines, hybrids, full electrics

"And another one gone, and another one gone / Another one bites the dust"
 
Well, it looks as though the recently approved CAFE standards that aim to increase automobile fuel economy to 54.5mpg by 2025 have claimed another victim. Infiniti currently has V8 engine options available in its M luxury sedan, FX crossover, and QX sport utility vehicles, but that likely won't be the case in future iterations of those vehicles.
 
According to a report by AutoGuide, increasingly stringent fuel economy and emissions regulations mean that V8 engines are no longer on the table for Infiniti vehicles. V8 engines have traditionally been available in luxury vehicles as a symbol of prestige and power, but Infiniti will look to new ways to bring powerful engines to its lineup while still keeping fuel economy in check.
 
“I don’t think any car that is on Infiniti drawing boards from here onwards we should expect a V8 to be included in that plan,” Johan de Nysschen, Infiniti's global president.
 
Infiniti's 5.0-liter V8 produces 385hp, its 5.5-liter V8 produces 420hp, and its 5.6-liter V8 (truck-based) produces 400hp.


Infiniti to say good-bye to V8 engines
 
There are numerous directions that Infiniti can take with the absence of a V8 engine. Automakers like Ford already have twin-turbocharged V6 engines that develop 365hp while still delivering respectable fuel economy. Even Hyundai is rumored to be getting in on the action with a twin-turbocharged 3.3-liter V6 which generates 395hp.
 
For entry-level and mid-range models will also see a shift in available engines as well. Infiniti's current workhorse engine is the 3.7-liter “VQ” V6, but Nissan is also working on a turbocharged four-cylinder engine to deliver comparable power and vastly improved fuel economy.
 
Other options for Infiniti include fully electric vehicles (like the LE Concept) and additional hybrid models (we’re hoping that Infiniti delivers a production version of the Emerg-E).
 
Infiniti isn't the only luxury maker to drop a V8 engine from its lineup. When Lexus redesigned its mid-range GS sedan, it dropped the 4.6-liter V8 engine option and instead launched the vehicle with a 3.5-liter V6 and a 3.5-liter V6/performance hybrid model for those that want the power of a V8.

Source: AutoGuide



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By Manch on 9/4/2012 12:06:24 PM , Rating: 2
I've never seen an unbalanced high revving engine. Mainly because they explode when you attempt to take them that high.

What do you mean by laggy? Trying to understand your point here.

Yeah, you do have V6's capable of putting out the same or more power as the larger V8's but you also have larger v8's that put out more power than those v6's so your point on that is? Doesn't matter how you try and get around it, a v8 has more potential for power than a v6, period.


By sorry dog on 9/4/2012 9:14:35 PM , Rating: 2
Weight balance is not the same as harmonic balance. Ferrari V8's use a flat plane crankshaft, which is less balanced but is lighter and makes a better exhaust note. Most other V8's use a crossplane crank cast with counterweights that result in much smoother operation, but with associated response penalty from increased rotating inertia.

...and by laggy he meant the throttle response...or quick revving and return to idle.

Also, to say a V8 has more potential power is not quite right. Many industrial diesel engines have six holes and put out thousands of pounds of torque.

As for cars...the availability of knowledge and parts for high performance gas V8's is much greater than other V6's, but that shouldn't be confused with the number of holes it has...displacement X volumetric efficiency will tell you much more about an engine's potential output. One ride in a Buick GNX will make you think twice before saying that.


By Manch on 9/5/2012 3:05:59 AM , Rating: 2
So how does Ferrari compensate? YOu say less balanced, the op said unbalanced which is why I questioned it. I don't just see a v6 being THAT much better in the throttle response if at all. Then as many posters have pointed out v6's have there own problems vs v4/v8's.There are many factors that can affect throttle response. Just being a v8 doesn't mean it will be "laggy"

We're not talking industrial diesel engines here, we're talking car engines so that has no bearing.

If I have to choose between a v6 and a v8 with equal displacement, Ill go with the V8. Buick GNX's are awesome cars, but that's a turbo 6 so again you're veering off point.


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