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Thread: [WRC] Rally Mexico 2023
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19th March 2023, 16:07 #11Senior Member
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Pirelli guy explains !


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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