Intake Ductwork
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Senior User
Joined: Aug 2005
Posts: 165
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From: southeast mi
Intake Ductwork
Anyone know what the 2 "empty" boxes are? 4.6 3v you cant miss them,I don't see any wires or any thing else going to them...
something to do with vaccum? kind of like an accumalater,
maybe to stop whistling.....
maybe just to make me ask questions
something to do with vaccum? kind of like an accumalater,
maybe to stop whistling.....
maybe just to make me ask questions
Posting Guru
Joined: Nov 2009
Posts: 2,016
Likes: 3
From: NC
I assume you mean that the engine is running too rich. Do you have any data to support that? Why would Ford purposely program the ECM for rich conditions?
Posting Guru
Joined: Sep 2006
Posts: 1,392
Likes: 1
From: Dayton, TX
never said anything about a lean/rich air fuel ratio. just stating that the factory style intake system does not flow air very smoothly through the ductwork because of the added chambers. it causes turbulance at and around the throttle body.
Posting Guru
Joined: Sep 2006
Posts: 1,392
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From: Dayton, TX
its ok. its mean that the motor is not getting all the air it COULD use. turbulance in the intake or exhaust system is not exactly the best way to have very good mpg. yes the trucks do get great gas mileage compared to older models. but it could still get better performance also with a smoother setup. the ribs and chambers cause the air to twirl around and not go directly into the throttle body, thus limited the volume of air that can enter at any given time. with a smoother intake the air flows directly in
Posting Guru
Joined: Nov 2009
Posts: 2,016
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From: NC
I think I understand what you're saying (makes sense), but if the engine isn't getting all the air it could use, wouldn't that mean a rich condition or a reduction in hp? With the hp and gas mileage wars between GM, Toyota, and Dodge you'd think Ford would get this issue fixed immediately.
Do the ribs and chambers reduce intake noise? Or is there another purpose?
I've heard of the Gotts mod for the previous 150s, but I haven't seen anything similar for the 09-10s.
Do the ribs and chambers reduce intake noise? Or is there another purpose?
I've heard of the Gotts mod for the previous 150s, but I haven't seen anything similar for the 09-10s.
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Posting Guru
Joined: Sep 2006
Posts: 1,392
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From: Dayton, TX
they dont run rich because they way they are tuned from the factory. and yes the chambers do reduce the noise. but if you were to install and aftermarket intake ( ex: volant, i have had good results with this brand) it does help, but combine that with a tuner/programmer and exhaust and you will see hp and torgue numbers increase. those 3 together really help to get air in and out as quick as possible and still be legal.
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From: Louisville,Ky.
They don't restrict it enough to hurt much. Maybe a few HP at 5000rpm. No torque loss which is what moves the heavy beast. They just resonate the intake noise because some people think that a truck should be as quiet as a TownCar so Ford tries to please everybody.
Cargo Master
Joined: Sep 2005
Posts: 2,976
Likes: 911
From: Montana
Just because the inside of the chamber is not "smooth" does not mean it hinders performance... Many times a bend or "rib" is added here and there to act as an air foil, which actually increases air velocity... It would apear to reduce the amount of air getting into the throttle body, but if it reduces the amount of air that can flow through by say 10 % (purely hypothetical) but increases air velocity by 50 %, you actually getting more air in there. Many water cooled motorcylcles employ a similar technique to get more air to flow through the small radiator. By adding an air foil, it increases the velocity or said air, which in turn ends up being more than would have flowed through an area with a bigger, un-impeded area.
I'm not saying this IS the case, but it COULD be. Most manufacturers usually don't spend a lot of time making the Air filter and box function as well as it could... For cost savings and packaging presumably. From what I have read, the stock intake on these newer trucks gives you about as much airflow as you'll need or be able to use out of a motor with a stock tune and exhaust, making it pretty useless to add a cold air kit unless you add something else to take advantage of the potentially increased airflow.
Clear as mud?
I'm not saying this IS the case, but it COULD be. Most manufacturers usually don't spend a lot of time making the Air filter and box function as well as it could... For cost savings and packaging presumably. From what I have read, the stock intake on these newer trucks gives you about as much airflow as you'll need or be able to use out of a motor with a stock tune and exhaust, making it pretty useless to add a cold air kit unless you add something else to take advantage of the potentially increased airflow.
Clear as mud?
Senior User
Joined: Sep 2009
Posts: 355
Likes: 44
Someone on another forum replaced the intake with a straight tube. The resonating at highway speeds was so bad he put the stock tube back on. Look at the underside of the intake tube and there are some huge chambers.
While the chambers may help with the resonating, they may help with tuning. Proper tuning involves designing an intake and exhaust system that takes advantage of the intake and exhaust pulses. That can help to draw air in and out of the cylinders.
While the chambers may help with the resonating, they may help with tuning. Proper tuning involves designing an intake and exhaust system that takes advantage of the intake and exhaust pulses. That can help to draw air in and out of the cylinders.
Posting Guru
Joined: Nov 2009
Posts: 2,016
Likes: 3
From: NC
Just because the inside of the chamber is not "smooth" does not mean it hinders performance... Many times a bend or "rib" is added here and there to act as an air foil, which actually increases air velocity... It would apear to reduce the amount of air getting into the throttle body, but if it reduces the amount of air that can flow through by say 10 % (purely hypothetical) but increases air velocity by 50 %, you actually getting more air in there. Many water cooled motorcylcles employ a similar technique to get more air to flow through the small radiator. By adding an air foil, it increases the velocity or said air, which in turn ends up being more than would have flowed through an area with a bigger, un-impeded area.
I'm not saying this IS the case, but it COULD be. Most manufacturers usually don't spend a lot of time making the Air filter and box function as well as it could... For cost savings and packaging presumably. From what I have read, the stock intake on these newer trucks gives you about as much airflow as you'll need or be able to use out of a motor with a stock tune and exhaust, making it pretty useless to add a cold air kit unless you add something else to take advantage of the potentially increased airflow.
Clear as mud?
I'm not saying this IS the case, but it COULD be. Most manufacturers usually don't spend a lot of time making the Air filter and box function as well as it could... For cost savings and packaging presumably. From what I have read, the stock intake on these newer trucks gives you about as much airflow as you'll need or be able to use out of a motor with a stock tune and exhaust, making it pretty useless to add a cold air kit unless you add something else to take advantage of the potentially increased airflow.
Clear as mud?
Someone on another forum replaced the intake with a straight tube. The resonating at highway speeds was so bad he put the stock tube back on. Look at the underside of the intake tube and there are some huge chambers.
While the chambers may help with the resonating, they may help with tuning. Proper tuning involves designing an intake and exhaust system that takes advantage of the intake and exhaust pulses. That can help to draw air in and out of the cylinders.
While the chambers may help with the resonating, they may help with tuning. Proper tuning involves designing an intake and exhaust system that takes advantage of the intake and exhaust pulses. That can help to draw air in and out of the cylinders.
Logistics Pro
Joined: Mar 2001
Posts: 4,157
Likes: 3
Anyone concerned about intake air turbulence should get this.
TORNADO Air Management Systems :: More Power! More Mileage!
These have been measured by a third party and by Mythbusters to give 0.0 mpg gains and 0.0 HP gains.
TORNADO Air Management Systems :: More Power! More Mileage!
These have been measured by a third party and by Mythbusters to give 0.0 mpg gains and 0.0 HP gains.