a1exander said:
Riaans (build 03/2003) car has 11,5 to 1 compression ratio.
I have verified with piston part numbers as well as BMW SA diagnostics system.
Bumping this thread and derailing it slightly as I was doing some research tonight.
The "S858A Low compression" Still bugs me.
Obvious question to ask is what does the car's ECU do when it detects bad fuel. It has knock sensors to adjust ignition timing as well as vanos for camshaft timing.
So I'm hoping it is limited to software changes only. Possibly camshaft timing set up differently from factory.
Also nice to note that "Riaans" car is 11.5
I also checked and "Riaans" car has the older cams
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as opposed to the newer ones
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