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.
Is the N54 a strong engine?
BMW’s N54 cranks are incredibly strong. They’re forged, well balanced, and pretty beefy. Right now the limits of the stock crank are still up in the air. We’re not aware of any N54 crankshaft failures, even at 900-1000whp.
What makes the N54 so special?
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 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.
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.
What is faster N55 or N54?
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 engine is better N54 or N55?
And, as already stated, the N54’s tune potential is better than the N55’s. I have driven 135is with both the N54 and N55 and own the N54 equiped version. My takeaway is that the N54 is indeed the better performing. My 135i has the GIAC tune with a ‘stock’ setting so when I compare it’s ‘stock’ to stock.
Which 335i has twin turbo?
The BMW 335i was available from 2007 to 2015. 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.
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.
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.
What should I replace on my N54?
- Spark Plugs and Ignition Coils. Spark plugs generally last 30,000+ miles.
- Fuel Injectors.
- Oil Change.
- Leaking Valve Cover and/or Gasket.
- Cooling System (Water Pump, Radiator, etc)
- Intake Valve Walnut Blasting.
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.
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.
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.
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 often do BMW 335i break down?
Some are known to fail around the 30k–40k mark and the repair history would reflect that. But most will easily last about 70,000 miles, and they come with a 10 year/120,000-mile warranty as well. Now you know why the warranty is so important.
Is a stock 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.
How long does 335i engine last?
The BMW 3 Series can last between 200,000 – 250,000 miles when properly maintained and driven conservatively. If you drive 15,000 miles per year it will last approximately 13 – 17 years before requiring expensive and uneconomical repairs.
Is the 135i N54 reliable?
The 135i was capable as a track day toy as well as a spirited commuter car, but it does have a few common issues besides rear legroom that were prevalent across the spread of N54-equipped BMWs. However, that doesn’t make it an unreliable car to own and drive every day.
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.
What year 335i has 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 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 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.
How much HP can N55 handle?
The N55 can handle around 550whp and 550wtq on the stock engine block and internals.
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.