02-22-2012, 09:25 PM | #45 | |
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02-22-2012, 09:41 PM | #46 |
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The engine of F10 535i dyno 277hp and 283lb-ft at the wheel. So this sounds about right.
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02-22-2012, 10:20 PM | #47 |
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02-22-2012, 10:29 PM | #50 |
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the base comes with 17"
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02-22-2012, 11:33 PM | #51 | |
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I woke up this morning, thinking: Some other great threads on a F30 328/N20 being tested...
But my eye cought THIS particular thread. Strange huh? The fact is, I, from the beginning, knew a N55 is a phenomenal engine , I have it in my current 535i. And I know the N54 as well. Superb. And if you literally cut off 2 cylinders you get the N20 more or less. N55's smaller brother so to say.(but very very good , don't get me wrong!) Then I read this post: Quote:
Cheers Robin |
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02-23-2012, 01:54 AM | #52 |
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02-23-2012, 02:35 AM | #53 |
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02-23-2012, 04:53 AM | #54 |
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Environmentalists
What's happened in Europe over the last decade, due to the fast progress of 4-cyl gasoline engines, is that the depreciation on the larger engines has steeply increased.
With the road taxes more and more being determined by the displacement size and CO2 exhausts, you can more or less get a 3 year used 330i for the same price as a 320d, only to end up with 20-30% higher running costs. After more years than that, the bigger engine models are practically ice cold due to more wear (more active driving) and 2-3 times higher repair costs. Traded 535i for a new 320d in 2009 and has practically never missed the bigger engine in terms of performance, only for its sounds and its more sophisticated charisma. (even the smallest bimmers start their hp/torque models where the competitors leave off) As I see it after owning a couple of bavarian masterpieces is that regardless of their engine size, very seldom do they become "slowly suicidal boring" to drive.. (of course not fair to compare a dual turbo gasoline with a single turbo diesel, just a heads-up for what the environmentalists might be up to in your country soon too) Cheers
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02-23-2012, 06:05 AM | #55 | |
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That's like saying the N55 is "working its ass off" because the old E46 328 2.8L is also an inline 6 but makes less power. The comparison has no merit in terms of longevity conclusions - they are different engines with different designs and different builds. |
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02-23-2012, 06:08 AM | #56 | |
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I have. Edit: If a N20 rates at 275HP at the crankshaft, then a N55 could do 275:2(litres)=137.5 x 3(litres)= 412.5 HP. That's a lot. Cheers Robin Last edited by Robin_NL; 02-23-2012 at 06:14 AM.. |
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02-23-2012, 07:12 AM | #57 | |
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I haven't test driven the N20, but it sounds like an awesome engine. I probably could have bought it and been just as happy, but I have been waiting for the N55. For the past couple of years I have been saying that once the N55 is in the new body style I am there...And now here I am |
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02-23-2012, 07:54 AM | #58 | |
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Calculated HP / Liter for each engine N55 - 328hp/3L = 109hp/L N20 - 270hp/2L = 135hp/L The N55 is most likely stressed less than the N20. As Robin pointed out, if the N20 was "grown" into an N55, HP would be closer to 400HP, more than what you can get from the N55 with tune only. I don't know if the N20 has been beefed up with stronger internals, but it's definitely stressed more. |
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02-23-2012, 07:55 AM | #59 |
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I don t belive that N20 is not reliable.
VW took out 270hp for the Golf R. BMW posted a power of 245 hp (euro version). So it can t be pushed to the limit at all. |
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02-23-2012, 08:03 AM | #60 |
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@vladberca. I understand and agree. But some engines are more reliable than others. I love the 458 Ferrari engine to death with 570BHP @ 9000rpm from a 4.5 litre V8 NA, but to drive it every day for 20,000 miles? I want to, I really do. And I know this is a weird example.
Edit: For everyday use I'd prefer a 7.0 litre V8 from the C6 Z06 Vette, just 2 valves per cylinder, 512BHP(EU) @ 6300rpm... My ex 1.8 turbo 5 valve Audi S3 engine with about 270BHP(back in 2000) was blown to pieces because not so strong internals, more or less, but damn it was fast.... Cheers Robin Last edited by Robin_NL; 02-23-2012 at 08:11 AM.. |
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02-23-2012, 08:15 AM | #61 |
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@ Robin Hood: it depends a lot also of the maintenance of the engine during its usage: going on a circuit or hard driving its not the same with a normal DD
Remaped, this N20 engine achieve ~295hp. It's an waranty offered too! |
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02-23-2012, 08:23 AM | #62 | |
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Only remapped a N55 can do 380/90 BHP easily.... The question is, do we want that as a dd, and dd means to me actually a lot of hard driving.... |
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02-23-2012, 08:28 AM | #63 |
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From what i learned, most ppl here lease cars for 3 years and don't care if the car lasts 8 or 10 years. I for one, trust that BMW makes very solid engines that always collect engine awards of the year. Whoever has a problem with that should change brands. I can dig the flame war of diesel vs petrol (famous in Europe), but really can't get this nonsense, bmw vs bmw...
I guess self-confidence is a comodity these days
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02-23-2012, 08:35 AM | #64 | |
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Anyway, no worries, we're just talking engineering stuff and I'm stating the N55 is a very relaxed engine to have. Cheers Robin |
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02-23-2012, 09:36 AM | #65 |
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Compared with the Automobile Mag Dyno Run:
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