I'd be interested too.
I just did a 1/4 mile run this Tuesday - 14.022s @ 99.22mph. I let the clutch out at ~3500rpm and still spun for a good half second before gaining traction otherwise I could have hit mid 13's. 4.5k - 5k sounds way too high to me. You want the tire chirp. I have to experiment with it more.
Power shifting to me I thought was shifting at the proper time each gear to keep the RPM needle in the peak power band for maximum torque (not HP).
And dumping the clutch is bad unless you're planning on replacing it a lot sooner than you would normally. You can ease relatively slowly into 1st and still pull down a decent time. Dumping through 2,3,4 isn't as bad since the change in revs isn't as great as dumping from 4k
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