A certain company touts this particular test, ASTM D-4176, to why their product is superior to the competition. I've heard that the 4-ball wear test does not apply to real world conditions.
Anyway care to comment?
For intake air temperature, by sheer thermodynamic fundamentals (See Otto cycle) alone, increases efficiency.
For dyno testing...many companies who make manufacture and sell intakes, when they show the dyno plot of horsepower gains, they usually show the best run, the earlier runs, before heat...
Sylvania has a HID retrofit kit specially for the F-150 (includes new headlights also)...it's not one of those plug and plug kits that is commonly available
It's been awhile...but it could be very simple, very complex, or somewhere in between. If used properly it should work....it's really a planned out form of trial and error.
You should be able to pick up texts on how to do a DOE.
I remember reading about this stuff a while ago....
Can anyone refer me to resources (text, web, etc) that correlates the characteristic of water-based paints and their durability (compared to paints of yester-years)