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BMW M550d Diesel tuning: 420 hp and 820 Nm
Daehler is the first tuning company to announce an ECU performance package for the BMW Diesel flagship, the high-tech tri-turbo BMW F10 M550d.
The power increase from 381 hp and 740 Nm to 420 hp and a ridiculos 820NM of torque, makes the Daehler M550d the most powerful and fastest BMW Diesel car ever made.
The new and optimized ECU improves the performance of the BMW Daehler M550d xDrive, enables the sprint from 0 to 100 in just 4.5 seconds, faster than the previous E60 M5 V10.
Unfortunately, the top speed remains limited to the standard 255 km/h.
Since the BMW tri-turbo Diesel technology is already using relatively high boost pressure, Daehler has avoided a significant increase in maximum boost pressure. Instead the ECU optimized mapping provides new start injection time and injection duration. Longer injection times provide more fuel in the combustion chambers, without worrying as with some other chip-tuning for greater wear of injectors. Besides the amazing performance improvement, the Daehler tuning package includes also a quad exhaust system with large pipes, a height-adjustable coilover suspension performance, a high-performance brake system with 6 or even 8 pistons, and 20 inch alloys.
I am looking forward to see the Diesel beast in action, in some real comparisons with fast sport cars. The mighty 820 Nm of torque and xDrive transmission should help the M550d to be extremely quick from both standstill and rolling starts.
BMW M550d tri-turbo Diesel on Dyno
The Czech guys from DieselPower.cz have taken the BMW F10 M550d to the Dyno. The 2012 M550d tri-turbo is the most powerful Diesel car ever to be produced by BMW, having a power output of 381 HP and 740 NM of torque, and features a all-wheel xDrive tracntion . Usually, BMW performance models produce more power at the crank compared to the the actual BMW factory specifications.
The 3 liters inline six-cylinder got three turbochargers – 2 small ones for low and high revs range and one large for high output at high revs. The first small turbo starts working from the lowest speed (1000 – 1500 RPM), then follows the big turbo for high speed (1500 – 2600 RPM) and high speeds are involved second small turbine. The system is fairly well explained on the official M550d video that BMW made public at the beginning of this year.
Throughout some series of measurements, the maximum measured power was 352 HP at 4066 RPM and maximum torque of 736 NM at 2443 RPM, 29 HP and 4 NM less than specified by BMW.
What is also worth attention, was the collapse of power and torque around 2800 RPM. As seen above, this is precisely the moment when the large turbo starts to kick in. BMW should tweak this for better liniar acceleration.
Major problem of the M550d, in my opinion is the immense weight of almost 2 tons (1970kg), 250 kg more than an E60 535d. Lower actual power plus the increased weight, is the reason why the new Audi A6 BiTdi (First audi 3.0 bi-turbo diesel) with 313 HP have quite similar acceleration performance up to 200 KPH.
BMW M550d superb video
This post is about a superb video filmed in Poland by one of the lucky M550d owners. The video features excellent professional effects, showing the BMW M550d from every angle. The 2012 BMW F10 M550d is the first Diesel BMW prepared by the Motorsport division, powered by a unique tri-turbo 3.0 Diesel engine.
BMW M550d vs Audi A6 3.0 BiTdi
Audi has targeted their new Diesel bi-turbo engine (called BiTdi), which is available for now only on the A6 models, against the 5 series F10 535d, which produces the same power output of 313 HP. As the following videos will show, the 2012 BiTdi is almost as fast as the top of the Diesel range offered by BMW, the M550d.
Both have under the bonnet a 3.0 liters Diesel engine, but the BMW M550d has an output of 381 hp and 780 NM, and the A6 only 313 hp and 650NM. Also both put the power down through All-wheel-drive transmissions: XDrive and Quattro, thus making them very fast off the line.
BMW M550d xDrive review by Autoblogger
Autoblogger has reviewed the BMW M550d xDrive, the fastest diesel production car in the world. The F10 BMW M550d is boosted by a the triple-turbo (three!) straight-six has 376bhp and 546lb ft of torque, shooting the M550d to 62mph in 4.7 seconds: barely slower than the M5. With an ECU update, the m550d gets even closer to M5 in terms of everyday performance, and becomes a true M5 diesel equivalent.
381 Hp + 740 NM + x-Drive + 8 speed ZF gearbox = translates in a 4.7 s 0-100 km/h run, faster than any previous BMW Diesel model, while the 100-200 km/h acceleration run is handled in about 13 seconds.