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<blockquote data-quote="DiamondSCattleCo" data-source="post: 157588" data-attributes="member: 2862"><p>:lol: The 1/4 mile run you're quoting was Bank's first efforts at the 1/4 mile in a truck that broke the pickup truck land speed record in Bonneville at 222.139 mph. The only change that Bank's made to run that 1/4 mile was a change to a 47RE Dodge automatic, with stock gear ratios and upgraded clutches to hold the torque. They never swapped out the 2.75:1 rear gearing.</p><p></p><p>Plug those numbers into your engineering books <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big grin :D" loading="lazy" data-shortname=":D" /> Bear in mind that most of your engineering formulas that you'll find in textbooks that could be used to predict 1/4mile times, trap speeds and HP are almost certainly for normally aspirated engines. Turbocharger spoolup is a biggy, as this has a big influence on your bottom side torque. And since 2003, elevation has played an ever increasing part in 1/4 mile times. By fooling the elevation sensor, we shaved 2.5 seconds off the ET of a stock 2003 pickup truck.</p><p></p><p>BTW, Banks engineering is considered a joke in diesel performance circles. They have yet to improve that 12 second quarter, while guys with street trucks are posting high 11 seconds.</p><p></p><p>I let my membership at the Turbo Diesel Register lapse, so I can't view the competition forums, however if you take a few minutes and prowl <a href="http://www.dhraonline.com" target="_blank">http://www.dhraonline.com</a>, you'll find sanctioned results from NHRA certified tracks.</p><p></p><p>"Physics says its not possible."</p><p></p><p>Yer readin' the wrong physics books.</p><p></p><p>Rod</p></blockquote><p></p>
[QUOTE="DiamondSCattleCo, post: 157588, member: 2862"] :lol: The 1/4 mile run you're quoting was Bank's first efforts at the 1/4 mile in a truck that broke the pickup truck land speed record in Bonneville at 222.139 mph. The only change that Bank's made to run that 1/4 mile was a change to a 47RE Dodge automatic, with stock gear ratios and upgraded clutches to hold the torque. They never swapped out the 2.75:1 rear gearing. Plug those numbers into your engineering books :D Bear in mind that most of your engineering formulas that you'll find in textbooks that could be used to predict 1/4mile times, trap speeds and HP are almost certainly for normally aspirated engines. Turbocharger spoolup is a biggy, as this has a big influence on your bottom side torque. And since 2003, elevation has played an ever increasing part in 1/4 mile times. By fooling the elevation sensor, we shaved 2.5 seconds off the ET of a stock 2003 pickup truck. BTW, Banks engineering is considered a joke in diesel performance circles. They have yet to improve that 12 second quarter, while guys with street trucks are posting high 11 seconds. I let my membership at the Turbo Diesel Register lapse, so I can't view the competition forums, however if you take a few minutes and prowl [url=http://www.dhraonline.com]http://www.dhraonline.com[/url], you'll find sanctioned results from NHRA certified tracks. "Physics says its not possible." Yer readin' the wrong physics books. Rod [/QUOTE]
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