HP is a function of how much air-fuel mixture the engine will pump through it per hour. Take the 350 Chev for example with small high velocity ports, 76cc combustion chambers and a short duration cam. It will make lots of low rpm torque but mid range and peak HP will be limited. Take the same 350 shortblock with a set of Edelbrock RPM heads with 64 cc chambers and a high lift/long duration cam. Peak torque may be even equal to or even greater than the previous low speed engine's version. How ever the peak torque will occur at a higher rpm. Of course max HP will be greater and occur at higher rpms. Fuel consumption per HP per hr of the engines could be identical. Every body thinks a 400HP engine uses a lot more fuel than a 200HP engine.Well yes it does but everybody forgets the 400HP engine is performing twice the work per hour.
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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