Agreed

 

You said while sitting in traffic. I said for fuel mileage, which means driving the vehicle.

While driving and even with a HAI and a CAI the temps being sucked into the motor while bumming down the freeway should still around 20-30º of ambient. And the OP was asking about fuel mileage was he not, so sitting in traffic nets zero miles per gallon.

So the computer will hardly pull back timing while its just cruising along and not caring about performance.

 

Also, since I know nobody that will sit in their truck and let it heat soak and let the intake temps rise to a stupid level and THEN start a race/log run/whatever, I still think it makes hardly a difference.

Most normal people will already be moving and air will be shoving it's way into the grilles/engine bay and right at the air filter. So if it's already moving and temps are still close to ambient, when you ham on the go pedal the temps arent just going to sky rocket and make the computer pull timing and make less power. Air will be moving faster and faster into the engine bay and temps will likely stay the same or fall a few degrees.

I highly doubt that if temps are 80-90º outside and your pulling in air around 100-110º (because of some engine bay heat) while driving down the road and you mash the throttle that temps will spike high enough to make a huge difference. Temps are already too high as it is.

 

Then by all means keep your HAI on your truck. I'm sure none of that air being pulled through the radiator and A/C condenser are entering the filter. By the way, what is the temp of that air? And don't tell be about the seals that are supposed to seal against the hood. They are a joke. And the stock IAT spark tables start pulling timing at 86 degrees.

I see you are in MN. Spend a few summers in Okla with your HAI and a data logger.

 

Actually I have a stock intake on my personal truck. But I have done both a cold air and hot air intake on my supercharged pontiac, the results were almost the same, though the hai will of course heat up quicker when not moving. Many logs with my hp tuners to just watch random data.

I'm not trying to argue or anything but there are times when it just doesnt matter too much about which setup you have. There are tons of variables that go along with this, like locations and hotside heat etc etc. But I'd just assume for this OP that his tune would be changed from stock so those tables start later.

I do agree that the air going though the rad and condensor dont touch the IAT and filter because it's behind the headlight, and the temp of the air varies. I'm sure if I did live down south and did run a HAI in the dead of summer it would be warmer than here.

 

You should learn to recognize sarcasm.