Quote:
Originally Posted by Yardjass
Too bad horsepower per liter is an absolutely useless metric. How much do those engines each weigh? How much physical size do they take up? What are the powerbands like? What about the efficiency?
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In the context of this discussion it isn’t a useless metric at all. No one is saying a large displacement V8 is inferior because it has a low HP:L ratio. The point people are making in this thread is it’s difficult to go much past 100HP/L without FI. In other words the FA20 would be hard to extract additional power out of without FI or a displacement bump (even if it caused the HP/L ratio to drop). The ND1 engine on the other hand had some headroom to work with without a displacement bump or FI.
Maybe I’m missing your point though.