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Turbo Cobras
Why Our Turbo Cobra's Don't Have Torque
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<blockquote data-quote="Onelfastlride" data-source="post: 8427896" data-attributes="member: 7298"><p>After thinking about it some more, I think I was struck by the obvious.</p><p></p><p>An engine does not make horsepower, it makes torque. Torque is a measurement of force (ability to do work). Horsepower is the measurement of work over time. </p><p></p><p> · Torque is a twisting force that rotates or turns an object.</p><p></p><p> · Torque is measured in lb-ft, meaning a force in pounds acting on the end of a lever measured in feet. In our case the length of a length of a rod acted on by the force of a piston. Thus a larger displacement engine can make more torque. Either by rod length or a larger force (piston) pushing down. </p><p></p><p> · horsepower = (torque x rpm) / 5252</p><p></p><p><strong><em>Long story short.....it has to do with at what rpm a particular set up makes peak TQ and how long it carries that TQ through the rpm band.</em></strong> Things like turbo efficency, intake, cams......... all make a difference in shifting the power band up or down. </p><p></p><p>Take a look at the table below and you will notice the break even point for this table is 5000 - 5500rpm. </p><p></p><p>If the TQ peaks and falls off before 5500rpm in the table below, it makes more TQ then HP. If it can carry the peak TQ above 5500rpm, it makes more HP then TQ.</p><p></p><p>RPM TQ HP</p><p>2500 800 381</p><p>3000 800 457</p><p>3500 800 533</p><p>4000 800 609</p><p>4500 800 685</p><p><em><strong>5000 800 762</strong></em></p><p><em><strong>5500 800 838</strong></em></p><p>6000 800 914</p><p>6500 800 990</p><p>7000 800 1066</p></blockquote><p></p>
[QUOTE="Onelfastlride, post: 8427896, member: 7298"] After thinking about it some more, I think I was struck by the obvious. An engine does not make horsepower, it makes torque. Torque is a measurement of force (ability to do work). Horsepower is the measurement of work over time. · Torque is a twisting force that rotates or turns an object. · Torque is measured in lb-ft, meaning a force in pounds acting on the end of a lever measured in feet. In our case the length of a length of a rod acted on by the force of a piston. Thus a larger displacement engine can make more torque. Either by rod length or a larger force (piston) pushing down. · horsepower = (torque x rpm) / 5252 [b][i]Long story short.....it has to do with at what rpm a particular set up makes peak TQ and how long it carries that TQ through the rpm band.[/i][/b] Things like turbo efficency, intake, cams......... all make a difference in shifting the power band up or down. Take a look at the table below and you will notice the break even point for this table is 5000 - 5500rpm. If the TQ peaks and falls off before 5500rpm in the table below, it makes more TQ then HP. If it can carry the peak TQ above 5500rpm, it makes more HP then TQ. RPM TQ HP 2500 800 381 3000 800 457 3500 800 533 4000 800 609 4500 800 685 [i][b]5000 800 762[/b][/i] [i][b]5500 800 838[/b][/i] 6000 800 914 6500 800 990 7000 800 1066 [/QUOTE]
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