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Torque graphs of the new Valvetronic Inline-6 engines
Courtesy of BMW AG
| | Reply » Torque graphs of the new Valvetronic Inline-6 engines |
Quote: The E90 engines will be 2.5L and 3.0L according to the enclosed Spec sheet from you know who:
[/url] | It seems this controversy won't go away until the first ones arrive here 
| | Reply » Torque graphs of the new Valvetronic Inline-6 engines |
Quote: | If you look at the curves side-by-side (Alex Baumann, can you post these?) for the E46 330, the E90 325 and the E90 330, you will see a progression in engine power and consistancy. The older engines, especially the ZHP, had peaks and valleys in the torque which felt like a "hole" in the power output. |
The graph shown at
http://www.bimmerfest.com/forums/att...chmentid=43063
is not a plot taken directly from a dyno. It is a graph with only a few data points from the spec. The curve may very well have dips in it that have not been shown.
Real dyno plots are never completely smooth and ripple-free.
| | Reply » Torque graphs of the new Valvetronic Inline-6 engines |
and, I'm not sure why..but...
I really think the U.S. market E90 325i will have the 2.5 litre engine.. And, it has nothing to do with the nomenclature..
Why the heck would they bother to put a 3.0 litre engine in the 325i for the U.S. market, if it has the same torque/horsepower as the 2.5 litre engine that is available in every other market?
Logic will prevail.. I think..
Note.. I'm not betting on this applying to the new engines in the 525i.. since it is a heavier car.. And, if it uses a 3.0 litre, I'll guess that the horsepower/torque stats won't be the same as the 2.5 litre.
regards,
kyfdx
| | Reply » Torque graphs of the new Valvetronic Inline-6 engines |
(sorry, this is mostly a repost)
Canadiandriver.com new preview also confirms the 3.0L in 325i rumor, and it also says the difference in the two 3.0L engines is intake and software.
Quote: In Canada, we'll receive two 3 Series sedans for a mid-year introduction (early summer). The 325i is powered by a 3.0-litre engine with a new magnesium crankshaft making 215-horsepower and 185 lb.-ft. of torque. Like all BMW six-cylinder engines, it's an inline cylinder configuration mounted longitudinally.
The 330i (which we drove at the press introduction) is equipped with the same 3.0 litre engine, but with a different intake and computer management system. It makes 255-horsepower and 220 lb.-ft torque.
| http://www.canadiandriver.com/articles/pw/06_bmw_3.htm
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Torque graphs of the new Valvetronic Inline-6 engines