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Thread: ERC Historic
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25th October 2025, 15:21 #13Senior Member
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There's a 3-way battle also in historic ERC.
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The swept volume limit is 1600 cc, so 266.7 cc per cylinder. For a 16:1 compression ratio the combustion volume is therefore 17.78 cc. For the compression to increase to 18:1 the combustion...
Pre-Season Engine drama