Quote (Audicted @ Nov 9 2009 02:36am)
i think it does
It doesn't effectively measure anything. Not potential, not efficiency, not speed, nothing. Why would you want XXXhp/L for its own sake? Why not HP/$, HP/size, HP/engine weight, etc. This has been debated to death over and over. HP/L isn't what most import guys think it is either. You can have an engine that produces 300hp at 9k rpm out of 2L of displacement (150hp/L) that is a gutless wonder to drive because the average power across the driven RPM range is complete crap. Once you reach the maximum VE (Volumetric Efficiency) of an engine the only way to increase horsepower is by turning more RPM. Horsepower is a function of torque and RPM. The higher you rev an engine the more power it will make. When you tune an engine to make that high peak number at a high RPM it generally has crap average power because it makes peak torque at 7k RPM.
It makes sense to want more power
It makes sense to want more power/size
It makes sense to want more power/$
It makes sense to want more power/engine weight
It makes NO sense to want more power/liter
Why measure by displacement? Displacement means nothing. There is no reason to have less of it when you can add more. The only reason to squeeze more HP/L out of an engine is when something LIMITS the size of the engine. Who did that? Europe and parts of Asia. European countries tried to tax people on the amount of power their engine made because oil was at a premium. Manufacturers lied about power output. They decided to tax based on displacement since it can be easily measured. What does this lead to? A smaller displacement engine being pushed and developed over a larger one because a restriction was imposed. This, and class specific racing restrictions are what fuel HP/L.
This shit can go on for days. Basically, get it out of your head. It doesn't mean anything.