Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - Great find: partial underbody tray for Gen1 IS300 and Gen3 Camry

EcoModder.com (https://ecomodder.com/forum/)

- Aerodynamics (https://ecomodder.com/forum/aerodynamics.html)

- - Great find: partial underbody tray for Gen1 IS300 and Gen3 Camry (https://ecomodder.com/forum/showthread.php/great-find-partial-underbody-tray-gen1-is300-gen3-1867.html)

Great find: partial underbody tray for Gen1 IS300 and Gen3 Camry

http://www.toyotanation.com/forum/t74629.html

This guy did a great job of doing it, I'm going to try it on my Camry coming up here and see what I can do with it, looks easy enough and it looks so clean!:thumbup:

Quote:

ES 300's HP losses at X mph:
55mph = 7.8 horsepower
60mph = 10.1 horsepower
70mph = 16.0 horsepower
100mph = 46.7 horsepower
120mph = 80.7 horsepower
140mph = 128.1 horsepower

Camry's HP losses at X mph:
55mph = 8.4 horsepower
60mph = 10.9 horsepower
70mph = 17.3 horsepower.
100mph = 50.5 horsepower
120mph = 87.2 horsepower
140mph = 138.5 horsepower

Can anybody explain this to me, preferably through a formula. The loss looks very linear from 55-70mph, but it jumps more than the ~3hp per 5mph from the 70mph to 100mph mark.

I am not trying to disprove the findings, simply understand them.