Quote:
Originally Posted by euromodder
S40
Compared to V50
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Well those pictures reveal the problem: The S40's roof is more or less
parallel to the airflow lines, but the V50's roof is
perpendicular to them!! No wonder the S40 feels like it has less frontal area
Quote:
Originally Posted by euromodder
That's a possibility, though the V50's ECU software has also been upgraded now and then.
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Maybe the ECU upgrade isn't enough if the newer engine has an upgraded part, for example slightly better injectors. I wonder what effect I'd see if the intake air temperature sensor was after the intercooler (newer models with
air doser) instead of before the turbo?
There is also the possibility that whatever you are using to see FE is miscalibrated. The Scan Gauge may need a few tanks in the S40 to get used to it, while the onboard computers are far from accurate. The local Pug forum says that the same model, with the exact same engine, can see up to 2l/100km difference on the OBC, and there is no way to calibrate it. Mine is usually 0.5l/100km off, which is good enough for government work, as my Step Dad says.