Posts Tagged ‘bmw n55’


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Everything you ever wanted to know about the BMW N55 twinpower turbo inline 6 cylinder engine is contained in this technical product information manual, including servicing information.

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Here is a DIY install guide for installing N55 mid pipes on a N54 powered model and deleting the secondary cats.

The main benefit of deleting the N54′s secondary cats is more flow, better faster spool up of the turbos, and a louder more deeper tone of the exhaust note.

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BMW TwinPowerTurbo technology again takes two of Ward’s 2013 10 Best Engines Awards. The 2.0-liter TwinPower Turbo 4-cylinder (N20) and 3.0-liter TwinPower Turbo inline-6 (N55) are both repeat winners.

“Nearly every BMW now sold in the US features TwinPower Turbo technology,” said Ludwig Willisch – President and CEO of BMW of North America, LLC. “In such a competitive market, to take two spots highlights the benefits of the BMW EfficientDynamics philosophy. It also shows that while we look for improvements in efficiency, we are still committed … CONTINUED

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Hartge releases its software ECU piggyback tune for the BMW 6-cylinder turbo N55 engine. It yields impressive power gains of +56 horsepowers and +59 ft-lb torque! The tune can be applied to the F30 335i, F10 535i and F25 X3 xDrive35i.

The Hartge ‘Engine Conversion’ is a bespoke tuning module that plugs in ahead of the engine computer on the wiring harness. It has factory-style plugs to connect in-line with the water temp sensor, fuel rail pressure, turbo boost pressure sensors, turbo wastegate … CONTINUED

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Ward’s Auto has published its annual 10 Best Engines List and as always, some BMW engines make the list. Here are the award winning engines for 2012:

2.0L N20 Turbocharged DOHC I4 (F30 328i / Z4 sDrive28i / 528i / X1)
3.0L N55 Turbocharged DOHC I6 (F30 335i / E92 335i / 535i / 135i)
3.0L TFSI Supercharged DOHC V6 (Audi A6)
3.6L Pentastar DOHC V6 (Chrysler 300/Jeep Wrangler)
2.0L EcoBoost DOHC I4 (Ford Edge)
5.0L DOHC V8 (Ford Mustang Boss 302)
2.0L Turbocharged DOHC I4 … CONTINUED

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We previously reported that BMW has plans to expand its TwinPower Turbo technology to its entire future 4-cylinder engine range. Word now comes from BMW AG that the future 3-cylinder engine range (gasoline and diesel) will also receive the TwinPower Turbo treatment.

The TwinPower Turbo package combines a single twin-scroll turbocharger, direct injection and full variable valvetronic. It first debuted on the N55 motor in the 5-series GT in 2009 and most recently on the first 4-cylinder motor, with the 2.0L N20 gasoline engine (full N20 details) … CONTINUED

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Matt@Camber-Toe performs a tear down of the N55 motor, BMW’s relatively new single turbo twin scroll N55 engine that now occupies the top spot within BMW’s inline-6-cylinder lineup. An analysis of the potential upper power limits of the turbos will be performed and overall upgradability of the N55.

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Here are the first clips we’ve seen of the BMW Performance Exhaust matched to a N55 motor and it sounds terrific! N55 BMWs come from the factory with a throatier exhaust than the N54 due to the absence of two mid cats. Paired with a Performance Exhaust, the N55′s growl is amplified beautifully.

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For 2011 BMW has made some substantial changes to the E92 and E92 BMW 3-Series Coupe and Convertible.

The first and foremost and probably biggest change is the introduction of the much debated N55 engine to the 335i3.0l
Single Turbo "TwinPower" Dual Scroll
300HP and 300LB-FT Tq.
Improved torque band and overall engine responsiveness
Introduction of VALVETRONIC
All aluminum construction

StylingRedesigned headlights (new shape and "graphics").
Brighter LED "corona" rings (angel eyes)
Bi-Xenon now standard
Adaptive Headlight and the Adaptive Headlight … CONTINUED