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<blockquote data-quote="Saltydawg" data-source="post: 156306" data-attributes="member: 2944"><p>Actually I didnt bother to make sure all the math is correct in my above example(it's not)....because its a messageboard and I was only attempting to show the relationship.</p><p> If you go through and do the math properly the small engine will actually have closer to a 400 lb/ft advantage.</p><p> The big engine will actually be closer to 2000lb/ft at the rear wheels and the smaller engine will be closer to 2400lb/ft.</p><p></p><p> Do the math and you'll see nothing changes with the outcome.</p><p></p><p> Also, by giving the deisel truck the higher gear ratios, and then giving it bigger tires, you are bringing it right back to the original gear ratio.</p><p> You added ratio in the tranny/rear end and then removed an equal ammount by enlarging the tires to maintain the same road speed.</p><p> Your torque didn't multiply because your bigger tires equally offset the gearing changes.</p><p></p><p> </p><p> I'll refer you here...its the best I could find right now without scanning engineering books lol.</p><p> <a href="Http://www.vettenet.org/torquehp.html" target="_blank">Http://www.vettenet.org/torquehp.html</a></p><p></p><p></p><p> Oh, you show me the guy who can make an 8200lb vehicle run 11 second quartermiles using a 550hp motor and I'll guarantee him a job on a raceteam <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" />.</p></blockquote><p></p>
[QUOTE="Saltydawg, post: 156306, member: 2944"] Actually I didnt bother to make sure all the math is correct in my above example(it's not)....because its a messageboard and I was only attempting to show the relationship. If you go through and do the math properly the small engine will actually have closer to a 400 lb/ft advantage. The big engine will actually be closer to 2000lb/ft at the rear wheels and the smaller engine will be closer to 2400lb/ft. Do the math and you'll see nothing changes with the outcome. Also, by giving the deisel truck the higher gear ratios, and then giving it bigger tires, you are bringing it right back to the original gear ratio. You added ratio in the tranny/rear end and then removed an equal ammount by enlarging the tires to maintain the same road speed. Your torque didn't multiply because your bigger tires equally offset the gearing changes. I'll refer you here...its the best I could find right now without scanning engineering books lol. [url=Http://www.vettenet.org/torquehp.html]Http://www.vettenet.org/torquehp.html[/url] Oh, you show me the guy who can make an 8200lb vehicle run 11 second quartermiles using a 550hp motor and I'll guarantee him a job on a raceteam :). [/QUOTE]
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