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I am kinda curious why you would build for torque, assuming a race or even a pleasure motor. If you look at all the torque and horse power figures, torque on a decent motor is always within about 10% of HP. When you get like a nail head Buick that makes 350 HP and 450 pounds of torque, or a diesel that makes 300 hp and 600 ft pounds, well that's either a failure to rev or something else wrong.
I have heard guys talk and say it’s the torque that moves the car. Well, would you want 10,000 pounds of torque at 5 RPM? I don't think so, it wouldn't get you anywhere. I'd like to hear other opinions on this, but if it’s a race motor, you want power, don't you? That equates to RPM's and torque put together. Build for horse power and the torque will come.

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on my street cars,i build for torque and let the horsepower fall where it will.

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My 2 cents for what it's worth. Building for torque is a good thing. Torque and power (HP) are linked by the hip (so to speak), because of the fact that horsepower equals torque (in ft-pounds) times RPM divided by 5250, so people who talk as if they are independent of each other don't really understand the concept. If you have a given torque curve for an engine, you have the horsepower curve also. Knowing how these two numbers work together with each other lets you better understand some of the do's and don't of what you might read on building efficient engines. RPM plays a hugh role also.
Hope i'm not off bases with the initial question.