I dyno'ed it with the hood open. To check variations i ended up testing this three ways.Mikeyspec, did you dyno the short ram air filter with the hood open or closed?
#1. Comptech Box was run with fans on
#2. Open Filter was run with fans off
#3. Open Filter with fans on
Runs 2 and 3 did not make much of a difference, it was +/- .5whp even with the car running for a while. Keep in mind the dyno room was about 55 degrees but from my experience you dont suffer from major heat soak issues until its really really hot. Otherwise in my opinion its best to have the intake where the powerband is happiest. Air from outside sources can always be fed there one way or another.
Yes I amHey Mike, good job! Are you still using the snorkel? It helps to direct cool air right into the filter!
Your testing was the first thing i thought of but at the same time with a stock ecu you will only benefit so much from modifications. I'm sure you are aware of extra wanted/needed/tuned for air volume associated when tuning VTC maps. Its almost as though these cars are tuned straight for whatever manifolds and intake they are given from the factory and anything more than whats provided doesnt show much gains until its really tuned for it.Interesting...I did not notice the same thing in our test. Also, I did not have a header or a re-flash so that could make a difference.