Question about BMW 5 series engine

[potato]

Just wondering why the E60 525 engine which is 2.5 has more power than the F10 outgoing N52 3.0 engines?

E60 2.5 engine has 218hp & 250Nm while
F10 3.0 N53B30 has only 204hp & 270Nm?

Both are Natural Aspirated engines.

Also what is the main difference between N52 & N53 3.0, as 3.0 N53 on f10 528i has 258hp 310Nm. Are the N52/N53 failed engines?

 

[hky91]

Engines now are designed for fuel efficiency. That is why they have very small cc but turbocharged

 

[BLaCkHoWLiNG]

torque is everything. Take ride in one and u will understand why. Compare 320D with 325i... of E90, though with lower HP, 320D is never, by anyways - slower than a 325i

 

[nyantong]

I doubt the newer engines are failed engines as they are more efficient and high tech compared to the older model. Furthermore the engine has direct injection. As for the smaller power output, the new F10 uses an 8 speed gearbox whereas e60 only carries a 6 speed. By using closer gear ratios, the manufacturer can reduce the power needed and thus fuel consumption to drive the vehicle while maintaining the same speed.

 

[potato]

You guys misunderstood, the 523 i'm talking about is using the N53 3.0 engine and i'm comparing against the previous 525 engine which is 2.5L. Both are NA i'm just wondering why the newer N53 with bigger cc is less powerful in terms of hp and only slightly more torque than the old 2.5L.

I'm not comparing the new small 1.8 & 2.0 turbocharged.

Just wondering is N53 bad design or what?