What is so special about N54?

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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.

Is the BMW N54 a good engine?

The N54 is a very highly regarded engine, for the most part. It’s received numerous International Engine of the Year awards and had thrice won the Ward’s 10 Best Engine Award. From an enthusiast standpoint, there are few engines today that can offer a similar return on the dollar in terms of modifications.

What BMW models have the N54 engine?

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.

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.

What is better N54 or N55?

The N55 twin-scroll turbo offers slightly faster turbo spool and delivers peak torque 100 RPM’s sooner than the N54; a characteristic that is not noticeable as each turbo set up spools quickly and delivers impressive torque through-out the low end and midrange.

What are the problems with the N54 engine?

These are the most common N54 engine problems: High-Pressure Fuel Pump (HPFP) Failure. Turbocharger Failure / Wastegate Rattle. Leaky Fuel Injectors.

Are all 335i twin-turbo?

Two primary engines powered the 335i – the N54 and N55. Both engines are 3.0L inline-6 turbocharged engines. However, the older N54 engine utilizes twin turbos while the N55 is a twin-scroll single turbo. Despite the differences in turbos most BMW 335i models pump out the same 300 horsepower and 300 lb-ft of torque.

How much can N54 handle?

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

What year BMW 335i has the N54?

2007 marked the introduction of the 335i model which was the first BMW to feature the N54 engine. As the earliest model year the 2007 335i generally suffered the most issues of all 335i’s early on.

Is N54 fast?

Brake-boosting the AWD N54 yielded a best blistering fast time of 11.9 @ 116mph. That’s about two full seconds faster than a stock N54 335xi which typically run in the 13.8 to 14.00 second range. To say that again, TWO FULL SECONDS off the stock time, on the stock turbos, with only bolt ons and a tune.

How strong is BMW N54 engine?

The N54 is a twin-turbocharged, direct injection engine, and from the factory, it made 300HP/300TQ at only 8PSI. With a simple ECU flash/tune, you can make around 380HP and around 400lb-ft of torque. Since this motor shipped with forged internals, a few mods can reveal insane power.

Are N54 engines forged?

This is because from the factory the N54 came with forged internals. While which specific parts were forged and which were cast is up for debate, it’s widely accepted that the crankshaft and rods were forged while the pistons were cast.

How long do N54 turbos last?

Turbochargers on the BMW N54, for the most part, last around 100,000 miles before they have to be rebuilt or replaced. It isn’t uncommon to hear of cars that have the original turbos still functioning as designed upward of 200,000 miles.

Which BMW engine is the most reliable?

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

Is BMW 335i expensive to maintain?

The annual maintenance cost of a BMW 335i is $1,030. Repair and maintenance costs vary depending on age, mileage, location and shop.

How can I make my N54 more 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.

Are N54 pistons forged?

Mahle Motorsports N54 pistons are forged for strength, light weight, and low drag to be a modest upgrade over the stock BMW pistons.

Who made the N54 turbos?

This turbo is made by Mitsubishi, the original equipment manufacturer (OEM) to BMW, and maker of the Genuine BMW N54 factory turbos.

How do I know if I have a 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.

Is the B58 better than the N54?

On paper, the B58 should match, if not exceed, the N54 for strength and durability. Although, the single turbo will likely limit its capabilities without upgraded turbo(s).

How much HP can N55 handle?

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

Why do N54 injectors fail?

The N54 injectors are notorious for having issues but the main problem that causes them to go bad is they will start to leak. But misfires arnt only caused by bad injector. Misfires are from lack of spark or fuel. So if you just had your injectors replaced i would check your plugs and coils first.

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.

Can you rebuild N54 injectors?

For over thirty years, GB Remanufacturing has been rebuilding fuel injectors, and are now the first company to remanufacture BMW’s Index 12 injectors for the N54, and we are the only company to make these available to you.

Are e90 335i reliable?

The BMW 335i enjoys below-average reliability, with some of its model years scoring better than others. RepairPal gave it a rating of 2.0 out of 5.0, ranking it 28th out of 31 for luxury midsize cars in its category.

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