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      04-21-2012, 08:11 AM   #46
Alpina_B3_Lux's Avatar
Drives: BMW 335i E90 LCI, 330d E91 LCI
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Location: Luxembourg

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2009 335i  [4.39]
Originally Posted by fusion01 View Post
Enjoyed watching that engine oil temp guage rise by 20 degrees C or so
Which already tells you that Alpina is not very serious with this car, as far as using it on a real circuit is concerned. The stock oil cooler (even with the extra water cooler that the B3S uses) is so tiny that once you drive a bit faster, you approach limp mode territory very quickly.

And bear in mind that the cooling provided by air flow is immense at the speeds shown in the video. At lower speeds it is even worse.

With catless downpipes and a remap you can easily get 450-460hp (crank) out of an Alpina B3S Biturbo.

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