3-Series (E21, E30)Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.
The M20 2.7 'eta' was designed with increased displacement and lower revving, torque enhanced I6 to offer a higher fuel economy model at the expense of some performance.
that explains why it has a lower redline than my E30 with the 2.5 litre. That means, since it has more torque, it has not a bigger bore like I origionally thought, but a longer stroke. HA! NOW I know how to build a 2.9 litre stroker! YAY!
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