Top 7 BMW Engines for Tuning

Awaken Performance by BimmerTech

Hey… do you know that tuning isn’t solely about making automobiles extra obnoxious and louder? It’s really principally about bettering efficiency, be it energy and torque or gasoline effectivity. All to achieve full confidence when accelerating, overtaking or merging onto a freeway, in addition to to avoid wasting gasoline underneath common driving situations.

Yep, you learn that appropriately: by having your BMW engine tuned, you may make it much less thirsty. Not solely that, with a correct tune, you might be additionally potential will increase in reliability.

However how do you go about ? Learn on to search out out a very powerful points of it and see which bimmer engines are good efficiency enchancment candidates.

What Makes a BMW Engine Good for a Tune Up?

There are solely a handful of “components” that decide whether or not or not an engine is correct for tuning. That being stated, every of them is essential, so if you’re contemplating a BMW tune, check out the checklist beneath.

  1. Aspiration sort – turbocharged engines are far more tuneable than naturally aspirated ones, as a result of there are extra parameters that may be managed to have an effect on the efficiency.
  2. Design sturdiness – what you need from a great tuning platform is loads of OEM reliability. The tune itself will assist enhance the longevity, however the extra strong an engine is from the manufacturing unit, the extra security margins you’ll have.
  3. Engine situation – for tuning, a BMW engine must be effectively maintained, in line with an everyday checkup schedule, together with well timed oil and filter adjustments, and spark plug inspections.

Primarily based on these three points, it’s simpler to specify which energy vegetation are higher suited to tuning than others. So, what are they?

BMW Engines Excellent for Tuning

On this planet of assorted BMW efficiency upgrades, there are a few designs which can be positively tune-worthy. They’re characterised by respectable sturdiness margins and cheap manufacturing unit energy output. Moreover, they’re comparatively effectively thought out, not less than normally.

Let’s dive deeper into the specifics of the abovementioned engines.

BMW B58 Engine Specs and Reliability


The most important of the Bavarians’ modular energy plant household, the BMW B58 engine is their newest consultant of the inline-six breed launched in 2015. Relying on the variant and utility, it pumps out 322–382 HP and 450–500 Nm of torque. It has cast aluminum piston rods and crankshaft, in addition to a closed deck block.

This implies the design could be very strong from the get-go and it could deal with energy positive factors effectively. It additionally significantly aids the reliability of the BMW B58 engine, giving it a long-lasting potential, which may be improved much more with applicable BMW B58 tune… However extra on that later.

The BMW B58 engine is used on virtually all present manufacturing 40i bimmers, together with:

  • BMW 340i (F30/F31/F34)
  • BMW 440i (F32/F33/F36)
  • BMW M240i (F22/F23)
  • BMW 540i (G30/G31)
  • BMW M340i (G20/G21)
  • BMW M440i (G22)
  • BMW M240i (G42)

BMW B48 Engine Specs and Reliability


One other consultant of the modular household, the comes within the form of a extra compact four-banger. The Bavarians managed to squeeze out 154–255 HP and 250–400 Nm of torque from it. Due to the modularity of the designs, the exact same cast piston rods that go into the B58 are additionally utilized in B48. As well as, equally to its larger brother, the inline-four additionally has a closed deck aluminum engine block.

Though the B engines are all comparatively new, their hefty inside parts bode very well for his or her base longevity. Additionally they make for a strong tuning platform.

In what automobiles can you discover the BMW B48 engine?

  • BMW 2 Collection, 3 Collection, 4 Collection, and 5 Collection 20i, 30i or 30e fashions after 2014
  • MINI Cooper S (F56)
  • Toyota Supra (J29)

BMW B46 Engine Specs and Reliability

Regardless of the BMW B46 engine being virtually equivalent to the B48, it’s nonetheless value explaining the completely different numbering. In spite of everything, you would possibly’ve already come throughout this designation. BMW B46 is principally a model of B48 that complies with the American SULEV (Tremendous Extremely Low Emissions Car) necessities. The adjustments embrace distinct air consumption, sensors, catalytic converters, and manufacturing unit tune adjusted to these components.

From the angle of BMW ECU tuning or reliability, there are not any vital variations between the 2. The B46 was put in principally in the identical fashions as B48, solely destined for the US market.

BMW B38 Engine Specs and Reliability


The smallest and the primary engine of the modular B household, this inline-three was launched in 2013 together with the BMW i8 hybrid. The 2 variations it is available in (1.2 and 1.5 L) can be found with outputs of 74–228 hp and 150–320 NM of torque.

Though it would appear to be a number of horses out of such a tiny engine, because of its sturdy building, you continue to have some room for additional energy positive factors. However, most significantly, engine tuning can assist you’re taking some load off of it.

Because the lowest-displacement member of the household, B38 engine was meant for the decrease trims of BMWs and the funds automobiles like:

  • F20/F21 BMW 118i (2015–2019)
  • F30/F31 BMW 318i LCI (2015–2019)
  • F40 BMW 118i (2019–current)
  • F44 BMW 218i Gran Coupé (2019–current)
  • F22/F23 BMW 218i (2015–current)
  • F45/F46 BMW 218i Energetic Tourer/Gran Tourer (2014–current)

BMW N54 Engine Specs and Reliability


Launched in 2006, the BMW N54 was the Bavarians’ first turbocharged gasoline engine. It took benefit of two turbos to provide 302–335 hp and 400–450 Nm of torque. Equally to the later B58 engine, it used cast inside parts (piston rods and crankshaft), however its engine block was of open deck design.

The BMW N54 engine is ready to deal with elevated increase pressures very well and has a number of potential for longevity enhancements with ECU tuning. Beneath you’ll discover a quick checklist of fashions that had been powered by this energy plant:

  • BMW 335i (E90/E91/E92/E93)
  • BMW 535i (E60/E61)
  • BMW 135i (E82/E88)
  • BMW X6 xDrive35i (E71)
  • BMW Z4 sDrive35i (E89)
  • BMW 740i (F01)
  • BMW 335is (E92/E93)
  • BMW 1 Collection M Coupe (E82)
  • BMW Z4 sDrive35is (E89)

BMW N55 Engine Specs and Reliability


An evolution of the earlier design, the BMW N55 engine was produced from 2009 and steadily changed the N54 in lots of functions. It was rated at 302–365 hp and 400–465 Nm of torque, relying on the model. As a substitute of two turbos, BMW used just one twin-scroll turbocharger, which made the motor lighter than the N54.

Equally to its predecessor, the BMW N55 engine is sort of sturdy and tolerates energy will increase effectively. Because of this together with taking just a few years off of it, with tuning you’ll be capable to achieve some additional “juice,” that will help you overtake different automobiles swiftly.

  • BMW 535i (F10/F11/F07)
  • BMW 335i (E90/E91/E92/E93)
  • BMW 135i (E82/E88)
  • BMW X3 xDrive35i (F25)
  • BMW 335i (E70)
  • BMW 335i (F30/F31)
  • BMW X6 xDrive 35i (E71)
  • BMW X1 xDrive35i (E84)
  • BMW 435i (F32/F33/F36)

BMW N20 Engine Specs and Reliability

If you’re into Bavarian engines, you would possibly suppose that the BMW N20 isn’t actually appropriate for tuning. Though it had its share of issues proper after its inception, they’ve principally been solved. Furthermore, one of many points that troubled this design was associated to excessive consumption air temperatures it skilled. Which is one thing that may be simply remedied by a correct ECU tune that may decrease how scorching the engine is operating total.

Launched in 2011, this turbo inline-four was a substitute for a naturally aspirated straight-six N53 engine. It got here in two displacement variations (1.6 and a couple of.0 L) and produced 168–241 hp and 250–350 Nm of torque.

As a predecessor of the B48, it was put in in an analogous vary of automobiles (except for 30i BMW fashions) till it was changed by the latter after 2017. Examples of N20-powered autos embrace:

  • BMW 220i/228i (F22)
  • BMW 320i/328i (F30) 
  • BMW 320i/328i GT (F34)      
  • BMW 420i/428i (F32) 
  • BMW 520i/520Li/525Li/528i (F10)

BMW Engines Good for Tuning – Honorable Mentions

Other than the facility vegetation described up so far, there are additionally different BMW engines which can be actually well-suited for ECU tuning. They’re on the backside of the checklist not due to their small potential, however as a result of the truth that they already are extraordinarily highly effective of their inventory kind.

Nevertheless, when you wished to, their sturdy inside parts supply nice security reserves for added energy positive factors. So, which of those designs are an ideal match for engine tuning?

  • BMW S55 – a efficiency model of the N55 launched within the BMW M3 (F80), with completely different variants producing 275–493 hp and as much as 600 Nm of torque. Manufactured from 2014 to 2021.
  • BMW S63 – the strongest engine presently provided within the Bavarian lineup, this twin-turbo 4.4 L V8 powers the top-of-the-line M automobiles, like BMW M5 (F90) and M8 (F91/92/93), in addition to their Competitors variants. Produced from 2009, this energy plant makes as much as 635 hp and 750 Nm of torque.
  • BMW S58 – primarily based on the B58 however closely revised, this engine debuted in BMW X3 M (F97) and X4 M (F98) in 2019. At present nonetheless in manufacturing and used on fashions like the most recent BMW M3 (G80), it pumps out 453–503 hp and 550–650 Nm of torque.

The way to Tune a BMW Engine Safely?


There are a lot of variables that must be taken under consideration when tuning an engine. In case you had been to strive altering any parameters inside your BMW’s ECU, you’d be vulnerable to damaging and even destroying the engine. Due to this, a distant tuning service like is your greatest wager.

Awaken Performance by BimmerTech

Throughout a web-based coding session, their technician does all the pieces for you: they introduce vital ECU adjustments and make your engine work at a decrease working temperature. Because of this, it additionally drinks much less gasoline (when you don’t change your driving model), and delivers energy extra easily. All whereas rising the longevity of your automobile.

The way to Take Care of a BMW Engine after Tuning?

After you’ve determined to provide BMW ECU tuning a go, simply don’t neglect the upkeep of your automobile. Use the highest quality fuels (octane score greater than 93 in US and not less than 98 in Europe) and motor oils, and usually examine all the pieces. And, most significantly, take pleasure in your automobile as if it was model new, once more!

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