Thread: 128i on Dyno.
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      05-18-2012, 05:39 PM   #18
1911A145
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Drives: 135i
Join Date: Mar 2012
Location: Port Saint Lucie, FL

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Quote:
Originally Posted by roo97ss View Post
I agree that the 70hp difference really doesn't sound that great. The 128 is a great car, and around town, up to legal speeds that 200 whp is a good number for a car rated at only 230 hp.

However, what's that 70 peak HP equate to on the track...
these are comparos on diff days obviously but from MT/C&D
128i
14.5@96, 5.8 to 60 15.7 to 100, 31.4 to 130
14.4@96, 15.6 to 100
135i
13.3@106, 4.7 to 60 11.5 to 100
13.4@105, 11.8 to 100, 21.4 to 130

a second in the 1/4 is pretty significant as is the 10 mph, nevermind a roll race like 60-100 (3 secs), 60-130 (9 secs)

in the 1/4 (100mph) it's about 1 car length per 0.1 secs. Meaning about 10 lengths.

Your comment on the 3.0 liter twin turbos only makes 70hp more is a result of BMWs tuning. Everyone that has tuned their n54/n55 knows that the difference can very easily be 120-160 hp at the wheels. That's what the 2 turbos get you, BMW just tuned it for +70 but there's a lot of unlocked potential there without sacrificing drivability.

I'm not knocking the 128 at all. Hell my tuned 1 is slow compared to my vette but on the street you can really have the most fun in the 128. I mean you can row a few gears keep the pedal to the floor and get to the unsafe 100 mph in 16 secs. That's a relatively long time of enjoyment, but still very respectable...(it's about 1/2 that in my vette...way too fast for public roads)
I agree with you. I am not bashing the 135i nor the 128i in any way. I am just pointing out the fact that in "STOCK" form that BMW should have made the 135i "on paper" much better performace wise than 70whp especially with forced induction vs all-motor. I drove a 128 and really hated the lack of TQ in down low and in the mid range and love my 135i for that even more. IDK... It was just something that stood out to me. Some people do not like to tune their cars so the whole "just tune it" argument is null to most people not on the forums.
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