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Old 10-13-2011, 09:46 AM
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Jerry Clayton Jerry Clayton is offline
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Join Date: Jul 2005
Location: Bartlett, Ill
Cobra Make, Engine: Everett-Morrison LS1
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There's a couple issues you guys are not considering---

#1----why shift at a higher rpm than peak hp/tq numbers???? remember that the older trans (4 speeds) had wider gear ratios and with the smaller engines we had to turn them WAY over rev so as not to fall out the bottom of the hp/tq curve on upshifts AND when down shifting, the engine r's would go pretty high----

#2 flywheel weight----with a small engine a high rpm leave with a heavy wheel allowed us to get going in a drag race AND we could get some extra umpt as we upshifted except for road /circle racing , the heavy flywheel put an unnecessary demand on some pretty inadquete brake systems

Of course back then we didn't have a wallet full of dyno numbers to shift our butt weight to assist with clutch or brake pedal effort---

In all my years of racing back then, I never had an engine that had been on an dyno, so we did what made it faster by moving shift points or playing with flywheel weights
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