Analysis: How the 2.0L Turbo Four May Compare To the 3.0L NA Six

Information technology was but a matter of fourth dimension before BMW took the thinking that went into the N54/N55 direct injected turbocharged half dozen cylinders and applied information technology to the naturally aspirated N52 six. And the upshot is a direct injected two liter turbocharged iv cylinder that will scroll out in the North American market in the X1 and, before long, probably all other vehicles that use that currently the N52B30 six.

Odd matter is, if yous await at the rated HP/Tq numbers for the N52 they vary by installation. The 128i/328i show max HP every bit 230 and torque at 200 lb ft (at 2750 RPM). The new 'X3 xDrive 28i' (tin they make the naming
any more ridiculous?) is 240 max HP and 221 lb ft (at 2750-4000 RPM). The 528i is 240 max HP and 230 lb ft (at 2600 – 3000 rpm). And so, it would appear that the engineers are optimizing torque for the platform the
engine is used in.

BMW N52 half-dozen-cyl shown here

What we know about the turbo direct injection motors is that they outset with numberless of torque off idle (~ 1300 RPM) and the torque curve stays flat to at least 4000+ RPM. Stump pulling amounts of torque. The new four compares quite favorably with an NA half dozen for ability output.

For case the Mercedes Benz C300 Sport uses a 3 liter V6 that produces 228 HP and 221 lb ft of torque from 2700 to 5000 RPM. That's decent power. Lose a liter gain a turbo and you lot become slightly amend HP and significantly better torque right off the line (1250 RPM) with the new BMW engine.

So information technology'll exist a decent substitute for the N52 from a power production standpoint. Considering it'south shorter, it may also contribute to even amend handling dynamics. And since it'southward a turbo, at that place will exist after market mods galore for it and within 5 months of it appearing in the Usa market place some tuner volition be bragging about hit 325 HP with the affair.

Any downside? Yeah, just a bit – the N52 seems to be the swan song of the naturally aspirated inline six (fifty-fifty Volvo may walk abroad from their NA inline six if rumors are correct). And in the one thousand scheme of things,
while the new engine will be more than powerful and more frugal, it'll even so bring a wisp of sadness when the N52 is no more . . .

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Source: https://www.bmwblog.com/2011/01/19/analysis-how-the-2-0l-turbo-four-may-compare-to-the-3-0l-na-six/