Quote:
Originally Posted by Stew
You are totally missing the point......... I don't give a flying rats ass about hp per liter, just the HP a motor is capable of. Again, you are only comparing the base 5.0, what about the boss 5.0? And why do you keep going to turbo 6s, small high revving 9000 rpm 4 cylinders that make no torque, it really isn't comparable, yes using that logic it may have 480 HP, but 200 pound feet of torque, not even in the same ballpark., at least keep it V8 to V8. the point is the 5.0 is not only challenging the LS3 in HP, but isn't too far off with torque and it is not running anytype of power adder. now if you want to really get into scematics, BMW had a 400 HP 5 liter V8 in 2000......
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Actually you are missing my point. Why are you only focusing on displacement?
The mustang GT makes 30 less peak torque. The Boss 302 makes 40 less peak torque. Depends if you want to call that challenging or not.
Look at the powerband charts though. From 3K rpm to below the LS3 is making around 75 more tq. Maybe a little more or a little less. From 3500-5000 rpm the LS3 retains a torque advantage of 30-40. From 5000-6300 rpm the torque advantage starts dropping from around 25 to equal at 6300 rpm. The redline on the LS3 comes 300 rpm later at 6,600 rpm.
It manages to do this without DOHC, without VVT, without 4 valves/cylinder, and without high rpm. Isn't it more impressive that a pushrod engine with 1 cam, no direct injection, no vvt, and 2 valves per cylinder is able to do that against what you call a more modern engine? Yet it suffers no penalty for the extra displacement? Not in weight. Not in space it takes up in the engine compartment. Not in fuel economy.
The Boss engine is an impressive engine, but it is essentially a high rpm, hand built engine with ported heads from the factory. What are hand built LS3's able to make compared to the boss 302's? You talk about it being unfair to compare to a high revving engine, but yet the boss 302 is just that. It makes peak power at 7400 rpm with a redline of 7500 rpm.
I also assume you are going to say the LS7 is not fair to bring up either because of displacement? Although it makes 505 hp from it's 2 valve design with a redline of 7100 rpm.
Even more confusing is you are impressed with Ford's 6.2L V8 with 2 valves per cylinder and no VVT making 412 hp, but brush off GM's 6.2L v8 with 2 valves per cylinder and not VVT making 426-436 hp based on application?