When did the N55 engine come out?

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The BMW N55 is a turbocharged straight-six petrol engine that began production in 2009. The N55 replaced the BMW N54 engine and was introduced in the F07 5 Series Gran Turismo. The N55 was BMW’s first straight-six engine to use a twin-scroll turbocharger.

What engine is in the 2012 BMW 335i?

The engine is everything we’ve come to expect from BMW’s N55 3.0-liter turbo six. It’s flexible, sonorous and strong, paired with a slick six-speed manual in our car to provide stimulating acceleration.

Does the 2012 335i have a N54?

I can say for sure that the 2012 335is has the N54 with twin-turbos.

What year 335i has N55?

Model year 2011 335i’s moved on from the twin turbo N54 engine to the single turbo N55. The N55 moved from piezo injectors to solenoid style injectors. This was a huge reliability upgrade over the problematic piezo injectors on the N54. However, the N55 uses the same fuel pump as the N54.

Is the 2012 BMW 335i twin turbo?

The 335i comes with one of the best engines on the market, a 3-liter inline six-cylinder benefiting from direct injection and a twin-scroll turbocharger, with output figures of 306 horsepower and 295 pound-feet of torque.

Do I have N54 or N55?

starting from March -2010 all cars were N55 drivetrains. Probably the best way to tell without looking under the hood… is IF it has a DCT it is an N55. IF its an auto it is an N54. IF its a 6MT… you’ll have to look under the hood.

What engine is better N54 or N55?

Thanks to the N54’s twin turbos and forged internals, it is the more capable engine mod-for-mod. However, the N55 has proven to be the more reliable engine. N54’s are notorious for their common problems, especially early on, but these issues are currently resolved.

What makes more power N54 or N55?

N54 N55 tuning potential While both engines give good gains, the N54 will always make slightly more power simply because it has two turbos and that means it’s easier for it to generate more power.

How reliable is the N55?

N55 Reliability Despite the many misconceptions that BMW’s as a whole are unreliable, the BMW N55 is actually a fairly reliable engine. The four most common problems with the N55 are, in no specific order, the valve cover and gasket, water pump, oil filter housing gasket, and VANOS solenoids.

What car has N55?

The BMW N55 engine is a 3.0L inline 6 and it follows the legacy of the N54 since it is the updated version of the engine. The N54 was known to be able to produce a lot of power with the stock internal components, but the components are a bit weaker on the N55.

How long do N55 turbos last?

N55 Turbo Longevity at 20+ PSI In general, more boost will reduce the lifespan of the N55 stock turbo. However, it is possible for N55 turbos to last 50,000+ miles at 23psi, for example. On the other hand, the stock turbo may decide to let go much sooner even at 20psi.

What 335i has the N54?

The N54 debuted at the 2006 Geneva Motor Show and was launched in the 335i model of the E90/E91/E92/E93 3 Series range. Following the introduction of its BMW N55 successor in 2009, the N54 began to be phased out. The final model powered by the N54 is the E89 Z4 roadster, which was produced until 2016.

Is a 2012 335i reliable?

The BMW 335i Reliability Rating is 2.0 out of 5.0, which ranks it 28th out of 31 for luxury midsize cars. The average annual repair cost is $1,030 which means it has poor ownership costs.

What year 335i is most reliable?

Reliable BMW 335i Model Years Here’s a quick list of the most reliable BMW 335i years: 2010. 2012. 2015.

Is the 335i fast?

The 335i sedan was sold between 2007 and 2013. It comes with an inline six-cylinder turbo powerplant with 2,979cc displacement, which offers 298 hp at 5,800 rpm and 295 lb-ft of torque at 1,200 to 5,000 rpm. It has a top speed of 155 mph, and its 0-60 mph acceleration stands at about 5.4 seconds.

How much HP can N55 handle?

The N55 can handle around 550whp and 550wtq on the stock engine block and internals.

What cars had the N54?

  • 2006-2010 BMW E90/E91/E92/E93 335i.
  • 2007-2010 BMW E60/E61 535i.
  • 2007-2010 BMW E82/E88 135i.
  • 2007-2010 Alpina B3.
  • 2008-2010 BMW E71 X6 xDrive35i.
  • 2008-2012 BMW F01 740i.
  • 2009-2016 BMW E89 Z4 sDrive35i.
  • 2010-2013 BMW E92/E93 335is.

Why is the N54 so good?

The biggest advantage of the BMW N54 is its power and potential. Sure, the twin-turbocharged petrol engine provides enough power as it is. Still, what truly makes it special is the ability to boost the output even more with a couple of aftermarket upgrades.

How much HP can N54 handle?

The N54 can handle around 600-650whp and 550-600wtq on the stock block and internals.

How long will a N54 last?

The N54 can and often does last 200,000+ miles if you’re willing to spend enough money. If the repairs are done right the N54 can offer good reliability and longevity. You’ll just end up spending more money on repairs and maintenance than these 10-15+ year old cars and engines are worth.

Is B58 better than N55?

As you can see, from very early on the B58 has big gains over the N55 which it holds right through the rev range. As you can see, the B58 has a very similar boost curve, but makes around 4PSI more than the N55 across virtually the whole rev range.

How can I make my N55 faster?

  1. ECU Tuning. The engine control unit (ECU) is the brain of every modern engine.
  2. Cat-Back Exhaust.
  3. Downpipe.
  4. Intake.
  5. Intercooler.
  6. Charge Pipes.
  7. Oil Cooler.
  8. Oil Cooler Thermostat.

What is the most reliable BMW engine?

  • BMW B58 Engine.
  • BMW M20 Engine.
  • BMW M50 Engine.
  • BMW S62 Engine.
  • BMW N52 Engine.
  • BMW M54 Engine.

Can you make a N54 reliable?

Regular fluid changes. Downpipes Intake and intercooler will all make the turbos work a lot easier and more efficiently. A proper tune and besides that, you should be prepared to change spark plugs and coils if misfires occur. N54 is pretty reliable besides a few misfires on old hardware.

Does N55 burning oil?

N55s do burn oil but to my knowledge. However, its not nearly that much. Do not quote me on this, but I believe N55 burns about a quart per 10,000 miles.

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