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      06-10-2014, 12:03 PM   #1
1ChrisRuck
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Did BMW underrate the horsepower rating for the 228i?

Curb weight~ 3200lbs

240HP (underrated by BMW, independent tests show more around 270HP)

0-60 in 4.9s (as tested by Car and Driver)

M-Sport package gets most of the same goodies as the M235i.

These specs are equal to or better than the E36 M3.

Quoted by this article
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      06-10-2014, 12:05 PM   #2
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I call BS on 270 hp...maybe 250
From some random poster...comon now
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      06-10-2014, 12:25 PM   #3
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It may be underrated a little bit, but not by 30hp... heh.

Side note, that's my photo he used.
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      06-10-2014, 12:27 PM   #4
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Quote:
Originally Posted by Uridian View Post
It may be underrated a little bit, but not by 30hp... heh.

Side note, that's my photo he used.
Great Photo Choice! I'm digging your 2! Nice!
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      06-10-2014, 12:29 PM   #5
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Quote:
Originally Posted by 1ChrisRuck View Post
Curb weight~ 3200lbs
That's optimistic. GSR Autosport weighed their 228i which was specifically optioned to be as light as possible, and they got 3189 lbs with about 2/3 full tank. The weights from the various reviews I've seen so far are:

Motor Trend: 3334 lbs.
Edmunds: 3344 lbs.
Car & Driver: 3353 lbs.
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      06-10-2014, 12:37 PM   #6
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Just compare the wHP from various dynos to other engines rated in that range, and that should tell the story. For example, with regards to the M235i rated at 322hp, dynos show ~305hp. Compare that to a Hyundai Genesis 3.8 AT which is rated at 348hp but shows ~275hp on a dyno. "Real" hp is unknown, but that's 30 more hp to the wheels and that's what really counts. A good comparison for the 228i would be the Genesis 2.0, which is rated at 270hp. Or something with GM's 2.0T which is also rated in the 270hp range.
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      06-10-2014, 01:02 PM   #7
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Didn't I also see a review somewhere that weighed a 228i M Sport at right around 3300 with fluids and less than a full tank?
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      06-10-2014, 01:13 PM   #8
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It's not the horsepower... It's the torque.
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      06-10-2014, 01:21 PM   #9
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It seems BMW does have a tendency to underrate, but C&D also uses a roll out when testing 0-60, so it brings the published times down compared to other testers. They have posted the fastest 0-60 for the M235i using the same methodology.

I'd guess it's overrated but I'd also guess it's unrealistic to expect to consistently replicate C&D's results or to come to a conclusion on HP using independent dyno testing. Bottom line is, the car's a decent bargain, whatever the true numbers.
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      06-10-2014, 01:49 PM   #10
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GSR Autosport dynoed their 228 race project while still stock and saw 233 HP at the rear wheel. Assumeing a rather conservative 10% powertrain loss thats 256 at the crank. Powertrain losses are i'm betting more like 15% so that would be 267 at the crank. Yea, I'd say BMW is really conservative
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      06-10-2014, 02:47 PM   #11
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Quote:
Originally Posted by tccox View Post
GSR Autosport dynoed their 228 race project while still stock and saw 233 HP at the rear wheel. Assumeing a rather conservative 10% powertrain loss thats 256 at the crank. Powertrain losses are i'm betting more like 15% so that would be 267 at the crank. Yea, I'd say BMW is really conservative
Really? I'd love to see a chart. Do you have a link handy?

**edit** Nevermind... my google-fu was weak. I found it on my own
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      06-10-2014, 04:13 PM   #12
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Can anyone tell me the difference between the 220i and 228i engines? Is it just software?
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      06-10-2014, 05:06 PM   #13
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Whatever it is, I love my 228! I road tested an Audi A3 which is rated at 220Hp and similar weight, and my 228 feels significantly faster. The extra gears help, but the engine just seems a lot stronger. I traded in a GenV GTI and the Audi didn't feel much stronger than the GTI. So says my extremely accurate butt dyno!
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      06-10-2014, 05:26 PM   #14
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when i test drove the 228i i was very pleased, but i think i am more than happy with my m235i, perfect choice, if you can burn the extra $ go for the m235i...
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      06-10-2014, 07:36 PM   #15
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I saw one of the car magazines did a Dyno on a 328 when they tested it against the Caddy ATS 2.0 and it was 258 I believe. This was about a year ago.
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      06-10-2014, 07:39 PM   #16
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Quote:
Originally Posted by valentinbmw View Post
but i think i am more than happy with my m235i, perfect choice, if you can burn the extra $ go for the m235i...
This. The little extra oomph makes the smile much bigger.

That being said, I'd be perfectly fine withe 228i if the m235i did not exist. Stout motor with plenty of power in a dd.
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      06-10-2014, 07:43 PM   #17
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Quote:
Originally Posted by epic
Quote:
Originally Posted by valentinbmw View Post
but i think i am more than happy with my m235i, perfect choice, if you can burn the extra $ go for the m235i...
This. The little extra oomph makes the smile much bigger.

That being said, I'd be perfectly fine withe 228i if the m235i did not exist. Stout motor with plenty of power in a dd.
The extra money in my pocket makes my smile a WHOLE lot bigger
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      06-10-2014, 09:42 PM   #18
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its probably more like 270 hp.

i've got a 328i so same engine.

http://www.edmunds.com/car-reviews/t...illac-ats.html

cadillac ATS and 328i dyno charts in there. ATS , GM says has 272hp , and the dyno shows they put down about the same at the wheel
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      06-10-2014, 10:53 PM   #19
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Quote:
Originally Posted by scanspeak View Post
Can anyone tell me the difference between the 220i and 228i engines? Is it just software?
Here is a link: http://www.f30driver.com/forum/showthread.php?t=966132

I think the 3189lb is probably with a manual transmission. So the question remains, is the manual in the 228 as good as the one in the M235i? I wish I had a chance to drive a manual because the lighter the better.
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      06-11-2014, 06:34 AM   #20
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Quote:
Originally Posted by Vitt View Post
Here is a link: http://www.f30driver.com/forum/showthread.php?t=966132

I think the 3189lb is probably with a manual transmission. So the question remains, is the manual in the 228 as good as the one in the M235i? I wish I had a chance to drive a manual because the lighter the better.

That is good reading. Thanks!
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      06-11-2014, 06:50 AM   #21
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Quote:
Originally Posted by Vitt View Post
Haha I saw that link earlier in the week as in Australia we don't have the 228i.

Really looking to find an ecu upgrade here in Australia to get my 220i up to the 228i since they carry the same engines.
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      06-11-2014, 11:14 AM   #22
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Quote:
Originally Posted by hans007 View Post
its probably more like 270 hp.

i've got a 328i so same engine.

http://www.edmunds.com/car-reviews/t...illac-ats.html

cadillac ATS and 328i dyno charts in there. ATS , GM says has 272hp , and the dyno shows they put down about the same at the wheel
Pretty good article. That's actually not the same article I read in either C&D, Automobile or Motor Trend but makes the same point. I have the N20 in my wife's X1 and its a great engine. Funny how the BMW pretty much smoked the Caddy in every straight line test I read with manual or auto so it can't just be the 8 speed auto.
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