Automobile - Comparison: BMW N54is vs BMW N55 Dyno Test

Jason Cammisa dyno tests BMW's N54is and N55 engines. For the full details, be sure to read the article at automobilemag.com.

New Performance Edition Kit Now Available Not Only For BMW 335i But Also For ...

20.05.12

At 335i increases the engine power output from 300 hp to 320hp and torque from 300 lb ft to 317 / 332 lb ft (manual / automatic transmission). 0-liter straight-six BMW engine, otherwise known as the N55. This Performance Edition kit designed for the 335i range will also be available for the BMW 135i when it goes on sale this August. The new 335i and now 135i Performance Edition will feature a boost in power and some distinguishing features that will ensure its success, according to the automaker.

Source: SpeedLux

BimmerFile » Archive » Automobile Magazine Pits the N54 vs N55 (Poll)

by gbridger@gmail.com (BimmerFile )

” forum posts, let’s remember that while the N55 put down 10 less horses than two of the N54s, a third N54 produced 10 more horsepower than the others. And now to the N55: well, it doesn’t, in fact, make as much power as the others N54s we’ve tested, but it does make slightly more torque. The 2007 BMW 335i’s N54 twin-turbo six is rated by its manufacturer at 300 hp and 300 lb-ft of torque. The dynamometer we used to measure the 335i’s output is a DynoJet model, and DynoJets tend to read higher than other dynos, but the output was a good bit higher than we expected. Remember — the power measured at the 335i’s rear wheels should be lower than the engine’s rated power. Before you start typing your “N55 sucks. And when we put the first 335i coupe on the rollers, it laid down a very impressive 275 hp and 300 lb-ft of torque....

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