Compression Ratio – Flat-12 Racing Engines

4252363 orig
917-Motor

10.5:1

3599496 orig
Tipo 015

11.5:1 (1980 312 T5)

368486 orig
Subaru/Motori Moderni 1235

11.5:1

3185312 orig
M 291

12.0:1

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