Quote:
Originally Posted by SS 1LE
Why are you shifting at 6500? Your stock minus the slicks right? By that point power is trailing off well according to every dyno sheet I've seen. Just curious to your thoughts.
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I've read about this debate many a time - shifting just before redline or shifting at the point the power curve starts to drop off. Its a great debate topic because either side can be argued and defended.
So, here is my take for shifting just before redline. The longer you accelerate in the lower gear - the longer you benefit from the multiplier factor for that lower gear even with some drop off after peak power. Most every case where the math is applied there is more power being put down in the lower gear even after the drop off versus the power the next highest gear provides after the shift. The other plus is shifting high in the rpm range makes it more likely the rpm drop from the shift drops you in back in the meat of the power range for that next gear.
I'm honestly not sure which is right. I have no personal experience to share for which produces the best time as I have only been down the drag strip for 5 or so runs and none with my current gen 6.
Just wanted to put the counter point out there for reaction.
note: On the other side of the debate - another plus of shifting a little early is it makes it less likely you will hit the rev limiter which we all know will ruin the time for that run.