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Anyone drive a 335 with N55 yet?
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04-23-2010, 02:06 PM | #1 |
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Anyone drive a 335 with N55 yet?
Just curios how the new standard turbo engine found in the 2011's is compared to the N54. They claim peak torque at lower rpm's and improved emmission though I didn't observe much difference in published mpg's. Wonder if any noticable difference in drivability compared with the 2010 models.
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05-03-2010, 11:04 AM | #2 |
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I drove a 2011 335i XDrive coupe with 3 passengers last weekend and I was pleasantly surprised at the power and handling. Granted, the car I test drove minutes earlier was a 2010 M3, the XDrive really did feel quite sporty.
You can definitely hear the turbo working harder in this car, as every time I would let off the accelerator, you could clearly hear the turbo whistle. Power was nice and linear from a dig, with virtually no turbo lag. Given that the car was at max capacity, it still got to 60 MPH very quickly. Definitely under 6 seconds. Compared to my 135i...it's tough. Not really a fair comparison due to the extra weight of the car + passengers, but it would give it a run for the money in a straight line, thanks to the XDrive and the fact that I lose rear-wheel traction in first and even second gear in the 135i. Overall, I'm very impressed with the N55. Oh, and the A/C was running the entire time.
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05-03-2010, 12:35 PM | #4 | |
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05-03-2010, 12:40 PM | #6 |
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Not from the ones I have driven. It's afairly laggy combo to me. I will take the stick any day, regardles, it will be between the drivers.
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05-03-2010, 01:49 PM | #7 |
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Is that the case in all BMW models or just the 2011 335i?
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05-03-2010, 02:57 PM | #8 |
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All and for that matter, most newer cars.
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05-03-2010, 03:23 PM | #9 |
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According to BMS the N55/DCT combo is pretty laggy compared to the N54/step. But they are already making pretty good progress on the tuning!
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05-03-2010, 03:42 PM | #10 |
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Even if the compressor was engaged, how much of a parasitic loss are we talking on the N54/55? 15-20 HP?
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05-03-2010, 04:12 PM | #11 | |
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If you have a DCT that you're not happy with, I have a 6MT that I am not happy with and will happily trade you
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E90 LCI N54 6AT
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05-03-2010, 04:43 PM | #12 | |
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Also, it does matter how fast you shift, but it also matters WHEN you shift and from what gear to what gear. That's why on many tracks the manual can be just as good as the DCT (the manual is only 0.1 seconds slower than the DCT in 0-60 time). I read the DCT has some downshifting problems (it does not shift exactly when you want) and I also don't know if it is capable of double or triple downshifting.
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Last edited by cstavaru; 05-03-2010 at 04:56 PM.. |
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05-03-2010, 05:09 PM | #14 | |
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E90 LCI N54 6AT
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05-04-2010, 08:54 AM | #15 | |
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05-04-2010, 09:58 AM | #16 |
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It IS the same unit in the E9x M3.
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05-04-2010, 10:34 AM | #17 |
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Not the same. same case and some internals, different clutch pack and software. That's why it's not even close as to how the DCT performs in the M3.
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05-04-2010, 10:58 AM | #18 |
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No DCT (2TC) in a 335i N55
Correct me if I'm wrong. The only 3 that gets the 2TC is the 335is coupe or convertible. Currently the 205 is mated to the N55 in the 335i sedans/coupe.
The only N55/2TC is in the 135i coupe/convertible. |
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05-04-2010, 11:24 AM | #19 |
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Didn't knew the 335is and 335i have different DCT gearboxes. This explains some things...
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05-04-2010, 01:46 PM | #20 | |
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Since you know so much about the DCT, what's the difference between the M and non M DCT? School me
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05-04-2010, 02:24 PM | #21 |
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+1, if you have any questions terry is the man to ask. His is already 4psi above stock
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