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Another point to consider is that just because the static CR is now higher doesn’t necessarily mean that the minimum dynamic CR that can be achieved by valve timing is any higher than before. If they’re going to sell the cars in NA, they have to be able to at least run reasonably well on 87, I’m sure that requirement is the same as before. Between valve timing, ignition timing, and advances in DI tech over the past 10 years, I don’t think it’s unlikely at all.
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