I feel like I aught to know this already, but please enlighten. It seem every auto maker is selling a car with a 2.0T. I'm sure this is due to new fuel efficiency requirements, modern engine engineering and advances in turbo tech, but what are the advantages of still going with a big engine, besides no turbo lag?

For example. A 2012 XF with a 4.2L V8 N/A rating 300HP. But the 2.0T also rates. 300HP and the 3.0 V6-SC rates 340HP. and performance advantage oh that big 4.2?

 

fuel MPG and less parts!!!= money saved

 

I'm interest in pro points for the v8, not the smaller engines

 

V8 will be quieter, much more reliable, effortless power delivery. Drive and see.

In post #1 what did you mean by "oh"?

 

"oh" meant, on that big 4.2.
i didnt think much of 4 cylinder cars, years back, but recently needed to rent a 2013 Sonata, for a month, well i was toataly surprised, cruise interstates around 75-85mph hours on end, a few times over 100mph, average MPG for 1 month 33.2mpg!

i dont really need a 150mph daily driver, altho my V12 jag will do it no sweat. mpg,dont ask!

V12 is much smoother than V8 , and very reliable if maintained properly.

but all things considered , a modern DIESEL is excellent on the hwy. BMW, MERC, AUDI!
JAG is a fair diesel, not quite up to German quality(personal preference).

 

Thank you for the informative replies. What I'm taking from this; while moden engines if all types are much improved from their predecessors, engines with 8 cylinders or larger can offer smoother power delivery, thus some ride quality is to be gained from driving a v8.

Ps your car is gorgeous, ron

 

The XF with a 2.0 Ecoboost engine only produces 240hp not 300.

 

Ford just released a 2.3L four cylinder Ecoboost,

305hp 300 lbs ft torque,petrol.

must be a HP race , i donno about the XF ,but fords pushing the envelope.

 

The power output of the 2.0L Ecoboost in the XF was set at 240hp because that was the output of the old 3.0L naturally aspirated V6. The 2.0L Turbo was to replace the 3.0L N/A engine. No doubt it could make more but that was how it was positioned in the range.

5.0L S/C is the big gun
3.0L S/C replaced 5.0 N/A
2.0L Turbo replaced 3.0L N/A

Forced induction is the way of the future.

I don't think you can include the older 4.2L engines in this comparison though, they were 10 years ago...

EDIT

Also don't forget the global picture, there are a lot of things that don't make it to the USA; i.e. the diesel engines, and the 2.0L is fitted to the XJ in some markets.

And with the older models there were also engines that never were sold in the US; the X350 XJ with the 3.0L N/A V6, the XJ & XK with the 3.5L N/A V8. Not to mention the 2.7L V6 TT diesels...

 

Cambo,


Supposedly Jaguar is playing around with a 500 hp 2.0 I4 Turbo in an F-Type. This combination was also used in the later versions of the CX75.

 

forced induction the way of the future.

quick story, when i was 17yrs old 1952, my father said if you want a lot of power, you should supercharge your car.
so me and my friends where looking all around town for a big battery CHARGER.

OK but now i ask myself,how did he know such things! in 1952.