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Motorsport
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Sport

Mercedes and Red Bull under scrutiny over F1 2026 engine compression ratio

Mercedes Red Bull F1 FIA Power Powertrains

Formula 1’s new 2026 power units will debut at the Circuit de Catalunya in just over five weeks’ time, but questions over a grey area of the new regulations have already come to light.

German outlet Motorsport Magazin revealed that some engine manufacturers have sent a request for clarification to the FIA regarding the compression ratio, one of the parameters changed in the 2026 regulations. This represents a reduction from the 18.0:1 value set by the previous regulations, now lowered to 16.0:1 for the upcoming season.

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