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crazypj
Engineering Explained
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Comments by "crazypj" (@1crazypj) on "This Brilliant Engine Makes 1000 HP Without Boost!" video.
Static compression ratio is just as irrelevant now as it was 50+ years ago. Dynamic compression is the only thing that matters and that is variable depending on rpm due to the 'pulse tuning' you kinda touched on. Another reason for using multiple injectors is the duty cycle. Using port and direct means both can be smaller and be combined to get correct F/A ratio almost all the time. It's been done on motorcycles revving much much higher for at least the last 10 years (as has chain driven DOHC to 18~20,000rpm) a V configuration engine has other issues with chain drives though not just the chain whip at high rpm,
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Can you do a video on motorcycle engines? WSB are rumored to be making over 220BHP from 1 litre NA and have been for several years
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