I always thought that the prechamber was a major restriction to the performance of the engine. Think about all that flow tying to squeeze through 4 or 5 pin holes. I think this has already been discussed, but what about drilling those holes out? What are the likely results? Can't affect CR too much. Could definitely affect cold startability, and probably noise. Anyone happen to know for example if the prechamber is the same for turbo and NA motors? I know on my SD-33T the prechamber is different for NA and Turbo models (granted that prechamber is a totally different design).

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