Advertisement

BMW unveils single turbo N55 six-cylinder engine for new 5-series GT

 

2010 bmw 5 series gt 040

The N55 is the world’s first engine to combine turbocharging, direct fuel injection and Valvetronic technology

The N55 is the world’s first engine to combine turbocharging, direct fuel injection and Valvetronic technology

Enlarge Photo
BMW’s current N54 series straight-six engine is one of the most praised engines in the industry today, having taken out the coveted International Engine of the Year award last year and appearing in a vast array of BMW models. With the unveiling of the new 5-series GT last week, BMW has announced a new variation of the 3.0L engine which will debut in the crossover at the end of the year.

The N54 features a twin-turbocharging system, as well as direct-fuel injection and BMW’s own Valvetronic technology, and in its most potent configuration develops up to 326hp (243kW) at 5,800rpm and 332lb-ft (450Nm) of torque from as low as 1,500rpm. BMW’s new variation on the engine, labeled the N55, is based on the same basic engine block and valve system but only sports a single turbocharger. It is the world’s first engine to combine turbocharging, direct fuel injection and fully variable Valvetronic valve management developed by BMW.

Peak output is still a healthy 306hp (225kW) at 5,800rpm and 295lb-ft (400Nm) of torque from an even lower 1,200rpm. Furthermore, the new N55 is also said to be more fuel-efficient than the N54 though no independent test results have been produced.

As previously mentioned, the N55 engine will debut in the 535i 5-series GT along with an eight-speed automatic transmission. This model will be able to accelerate from 0-100km/h in around 6.3 seconds and is rated at 26mpg (9L/100km) in fuel economy.

Advertisement
 
 

Have an opinion?

  • Posting indicates you have read this site's Privacy Policy and Terms of Use
  • Notify me when there are more comments
Comments (7)
  1. That all fine and suitable for a base engine for the GT5, but will a V8 upgrade be available as well - say the 4.4L Twin-Turbo V8?
     
    Post Reply
    Vote
    Bad stuff?

  2. I'm glad to see BMW committing more to turbocharging. Toyota and Nissan have shown us that turbo I6 engines can make massive power while still staying dependable and driveable. Hopefully, the new BMW turbo engines are just as bulletproof and upgrade-friendly as the old Japanese engines.
     
    Post Reply
    Vote
    Bad stuff?

  3. Would like to test it out soon
     
    Post Reply
    Vote
    Bad stuff?

  4. Come on guys, give the dudes at bmwblog some credit for finding out that the engine is called N55. A week after the press release and no one even reported this engine until they said it yesterday
     
    Post Reply
    Vote
    Bad stuff?

  5. I prefer a 6-in line anyday over a V-8.
     
    Post Reply
    Vote
    Bad stuff?

  6. "The N54 features a twin-turbocharging system, as well as direct-fuel injection and BMW’s own Valvetronic technology"
    "BMW’s new variation on the engine, labeled the N55, is based on the same basic engine block and valve system but only sports a single turbocharger. It is the world’s first engine to combine turbocharging, direct fuel injection and fully variable Valvetronic valve management developed by BMW. "
    This makes no sense? The new one is the first to combine those 3 things? And the N54 is the same way?
     
    Post Reply
    Vote
    Bad stuff?

  7. That's a negative TJones, The N54, 300hp used in 335s, has dual turbo but not VALVETRONIC. Its younger brother 328 has VALVETRONIC but only 230 hp. VALVETRONIC system was thought of as 'too delicate' to handle the 300 hp developed by bi-turbo engines. I'm guessing they beefed it up....
     
    Post Reply
    Vote
    Bad stuff?

 

Have an opinion? Join the conversation!

Follow Us

Advertisement

Take Us With You!

 
Advertisement
Advertisement

Research New Cars

Go!

Related Used Listings

Browse used listings in your area.


 
© 2014 MotorAuthority. All Rights Reserved. MotorAuthority is published by High Gear Media. Stock photography by Homestar, LLC. Send us feedback.