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MotorTrend takes the F80 BMW M3 to dyno

BMW M3 | July 10th, 2014 by 6
bmw-m3-engine-s55

MotorTrend takes the new F80 BMW M3 to the dyno test and compare it against the previous generation E90 M3. On K&N’s dyno, the new …

MotorTrend takes the new F80 BMW M3 to the dyno test and compare it against the previous generation E90 M3.

On K&N’s dyno, the new M3 put down 379 horsepower at 6600 rpm and 378 lb.-ft. of torque at 4300 rpm. Official figures show the engine being rated at 425 hp at 5500 rpm and 406 lb.-ft. of torque at 1850 rpm.

Using 13 percent as a rough estimate for drivetrain loss, the two figures are matching but the peaks are different.

As explained by Albert Biermann in a recent chat, the curve of the S55 engine is where we should be paying attention. Basically the power delivery is consistent and available across the entire RPM range.

MotorTrend takes the F80 BMW M3 to dyno

The torque build-up starts way low compared to the previous 4.0 liter V8.

The chars also show that horsepower doesn’t begin to fall off until before 7000 rpm, and not by much.

The S65 4.0-liter V-8 was also dynoed. The charts showed it produced 306 horsepower at 7600 rpm and 238 lb.-ft. of torque at 3850 rpm.In isolation, it’s a beautifully shaped power band, delivering flat, consistent torque and a linear build in power throughout the rev range.

MotorTrend takes the F80 BMW M3 to dyno

Here are the two engines compared:
MotorTrend takes the F80 BMW M3 to dyno
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  • Hermann

    Didn’t the F10 M5 make more at the wheels than claimed on official data? Amazing work from BMW on these F80 M3 and M4. When pretty much every reviewer claims it to be underrated, the package can only be extremely special to give that feel.

    Unrelated: Why is the M5 codenamed after the regular 5-series (F10) and the M3 isn’t codenamed after the regular 3-series (F30 and F80)?

    • http://www.bmwblog.com Horatiu B.

      Was probably a change BMW decided to make moving forward. I’m assuming all future M models will follow.

    • Havis

      Probably because M5 uses same body with other F10′s, but F80 has much wider rear wheel archs. I’m only guessing here though…

  • Chris

    Is the s65 dyno number quoted here representative of a typical s65? The value seems a bit low.

    • http://www.bmwblog.com Horatiu B.

      It is lower than what we have seen.

  • Roadkillrobert

    Numbers are low on that dyno, but huger tuning on a dynojet got 427 hp while a stock e90 on a dynojet is about 350 hp, so whatever the dyno the new M3 is healthy and makes about 75 more hp than the previous gen!

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