Not Officially Back
caymandiver75 said:No, the car was just strapped onto the dyno and run multiple times with back to back consistent readings lower than my baseline, which was about 4 weeks previous. Finally we decided to add a second fan and that immediately brought the power back up to my baseline level. No air temps or fuel trims were measured.
I gotta say, if you didn't record the data, you can't say for sure if it was due to the temps... you can determine a relation between the fan position and power, but that doesn't demonstrate cause.
It may very well be caused by temps, but there is no hard evidence to prove that for sure.
I don't know if anyone noticed when I asked what was weird about the 350 dyno graphs that were posted, but the 350 ECU is tuning to 13:1 AFR @ WOT, as opposed to 12:1 for the 300. If the intake is indeed going to "learn" these mods, you should be able to see it in not only a dyno, but by watching timing, fuel trims, and AFR (effect of mods/trims). We might see AFR jump to 13.5:1 as soon as it is installed, then back down to 13:1 as it "learns" the mod. Or you might see it drop to 12.5, then climb back up to 13. Or it might never climb. Or it might pull timing.
There's no way to know what the heck is going on until we record that data.