Good news, my header has made it as far as Los Angeles. It was literally on a slow boat from China.
That inspired me to try to take some measurements today. Unfortunately, the HP & Torque measurements I'm getting from the Torque app, while mostly in a reasonable range, are extremely inconsistent. Like HP ranging from low-mid 70's to as high as 80. (yes, I know that's not accurate... wheel hp should be right about 60-65) A measurement consistency error of 10% makes it impossible to measure an IMPROVEMENT of 5%!
I'll have to get serious about it and go to one of my secret test facilities in Mexico where I can do lots of runs on the same stretch of road, both directions, and all that. See if I can come up with some consistent power and torque numbers. Or, at least consistent acceleration times. Worst case, I think I can get consistent torque numbers by doing mid-range pulls in 4th.
But, at least I got my baseline sound measurements. And, no, these are not scientific at all. Just quick "once or twice and done" measurements to get an idea, rounded to approximately the nearest dB. I'll drop them here in case I lose my notes:
In-car dBA
48 - Idle w/ no fan
50 - Idle w/ fan on 1
57 - Idle w/ fan on 3
63 - Rev to 3500 rpm
75 - Rev to 6000 rpm
71 - Cruise at 2500 in 5th
72 - Cruise at 4000 in 3rd
74 - Cruise at 5000 in 1st
83 - Accel to redline in 1st and 2nd
Outside Car dBA
64 - Idle at 10 feet
73 - 3500 rpm at 10 feet
85 - 6000 rpm at 10 feet
50 - idle at 50 feet (ambient, couldn't hear it)
58 - 3500 rpm at 50 feet
69 - 6000 rpm at 50 feet