Comments by "" (@neutronalchemist3241) on "Engineering Explained" channel.

  1. You seem to forget that there are SOHC engines, two valves OHC engines, and engines where the overhead camshaft is not placed over the valves, so reducing the overall height. Also, OHC engines are actually simpler than pushrod engines. They are made with less parts, but have more EXPENSIVE parts. Camshafts are expensive, while pushrods and rockers are cheap.
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  2. Cause a manual transmission would have needed a tunnel for the levers to pass, and that would have meant to change the shape of the frame, and that would have meant MORE WEIGHT in a car that's all about reducing the weight.
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  3. Performance-wise, the I6 will always be inferior to the V6 and flat6. The long 6 pins crankshaft and long camshafts required by the I6 reduces the revs. That's why Mercedes used a long stroke (that reduces the revs too). Being a I6, the engine couldn't have revved high anyway.
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  4. And a pretty primitive one.
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  5. Turbo.
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  6. Oh, yeah. It's full of customers that throw turbos on engines not designed to have them, trashing their warranty.
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  7. No, is the previous model Miata gearbox (the previous model was more apt to absorb the torque).
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  8. So a recycled old idea with a valve actuation tecnology that's primitive in respect to a Multiair (that's almost ten years old by now).
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  9. Performance-wise, the I6 will always be inferior to the V6 and flat6. The long 6 pins crankshaft and long camshafts required by the I6 reduces the revs. That's why Mercedes used a long stroke (that reduces the revs too). Being a I6, the engine couldn't have revved high anyway.
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  10. The Lancia Delta S4 did.
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  11. Compensating for the compression ratio doesn't make any sense. We are talking about the most efficient engine here, and what a higher compression ratio does is to make the combustion, and so the engine, more efficient (contrary to the boost). Why compensating it? Is like downgrading the results of the engines with better combustion chamber's shape.
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  12. Yeah. Tell to the Alfa V6, 540hp from 2.9 litres, that inline six are better. What you are talking of are downward compromises to save manufacturing costs (Mercedes' buyers in particular should be happy to know that the brand made those compromises to save costs, shouldn't they? It's an economic brand after all...). A long stroke engine is limited in its rev, and the six crankpins required by an inline six reduces the rigidity of the cranckshaft. Performance-wise, the I6 will always be inferior to the V6. To bolt on an electric engine to a gasoline one to make up for its defects doesn't improve the architecture. You can bolt on electric engines to every gasoline one, not only to I6 ones.
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  13. F1 manufacturers can use 4 engines for car in the entire season (20 races), so every engine (turbocharged 1.6l V6 developing about 1000hp for 2018 season) has to last for about 4.000 km, considering the test sessions. NASCAR engines have to last only for two races (thus being longer).
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  14. It exists. It's called "comprex" supercharger.
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  15. Walter Röhrl on his experiences in Lancia and Audi. Lancia: "we built a car where everything that breaks can be replaced in five minutes". Audi: "We built a car where nothing breaks". Then, something got broken on the Audi, and it required an hour of work to be replaced.
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