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      09-13-2012, 05:04 PM   #1
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328i - Not always the power that BMW tell you...

This was very surprising...............

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      09-13-2012, 05:21 PM   #2
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Why surprising mate....isn't that about right for power?

Me likey the power graphs on the idrive
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      09-13-2012, 05:27 PM   #3
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Have you also seen this 0-60mph test on a stock 328i? Ok not something you'll do at the traffic lights every day, but not bad eh...

http://youtu.be/MsUixKU6NDs
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      09-13-2012, 05:33 PM   #4
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From my (limited) understanding, the "horsepower at the flywheel" rating is not usually matched by the test performed in the clip....under most rear-wheel hp tests, there is around a 10-15% degredation in power output (unlike in this test). This means the 328i is conservatively rated compared to real world performance.
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      09-13-2012, 06:05 PM   #5
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Quote:
Originally Posted by TMP View Post
Why surprising mate....isn't that about right for power?

Me likey the power graphs on the idrive
Nope, as says above the publicised bhp for a 328i is 240bhp at the flywheel. That video is showing 240bhp at the wheels. Bearing in mind transmission losses, that would make the car around 270bhp at the flywheel.
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      09-14-2012, 02:20 AM   #6
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0-60 in under six seconds from a sedate looking four door
saloon with a 2.0 petrol engine that is also clean and efficient. Never mind the horse power, just think how good the 335 might be. BMW engines are in another league.
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      09-14-2012, 04:51 AM   #7
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Quote:
Originally Posted by RobUK View Post
Have you also seen this 0-60mph test on a stock 328i? Ok not something you'll do at the traffic lights every day, but not bad eh...

http://youtu.be/MsUixKU6NDs
Flipping heck....that's quick! Sounds quick nice as well

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Originally Posted by dopper99 View Post
Nope, as says above the publicised bhp for a 328i is 240bhp at the flywheel. That video is showing 240bhp at the wheels. Bearing in mind transmission losses, that would make the car around 270bhp at the flywheel.
I am always an bit sceptical about the accuracy of Dyno's, but yes BMW must (and have been before) a bit conservative!
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      09-14-2012, 06:52 AM   #8
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Explains the great 0-60 time. 5.9 seconds

For example the Audi S3 did 0-62 in 5.5 seconds but it did have 265hp and is AWD so will not suffer any wheelspin off the line.

Nissan 350Z is similar weight and RWD and had 276hp to post a 5.9sec. 0-60mph, although is a manual. Can launch harder but perhaps a little slower through the gears.

So can well believe the 328i is pushing out a tad more than the claimed 245hp.
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      09-14-2012, 04:06 PM   #9
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Whats the the 50 to 70 times etc for the 328i i was looking for comparison against my 2006 e90 330d
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      09-14-2012, 04:23 PM   #10
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Quote:
Originally Posted by TMP View Post
I am always an bit sceptical about the accuracy of Dyno's
This is the only relevant comment here
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