cold air intake which one to use?
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From: Under the flightpath of old ORD 22R
Re: Stock enclosure question
Originally posted by David_B
On a normally asperated vehicle, your engine uses only so much CFM, if a filter allows all the air your engine needs with less pressure within the system (restriction), then an 11" larger filter with two open holes in it (filtered of course) wouldnt make any differents and is an over kill and gives you not benefit. Filter surface, needs to be larger than the square inches, plus 30% within your next smallest port, lets say your throttle body or MAS. typically a filter has a 30% surface loss, due to the wire mesh and filter element, of course this is on cotton filters. Foam filter actually flow more, but filters less.
On a normally asperated vehicle, your engine uses only so much CFM, if a filter allows all the air your engine needs with less pressure within the system (restriction), then an 11" larger filter with two open holes in it (filtered of course) wouldnt make any differents and is an over kill and gives you not benefit. Filter surface, needs to be larger than the square inches, plus 30% within your next smallest port, lets say your throttle body or MAS. typically a filter has a 30% surface loss, due to the wire mesh and filter element, of course this is on cotton filters. Foam filter actually flow more, but filters less.
The engine will draw what it wants to use, unless you pressurize it, and force air into it. with the 5 sided box, it cannot be a pressurized system. The MAFS wil calc what it has comming in, and adjust the remainder the parameters needed to work with that amount of airflow.
Guess having the Larger Air filter with the pleats on the end, which in the config I am using it in, producing higher MAFS flow rates per the PCM, are not being used ? How is that ?
Is the engine storing the un-needed air some where and pushing it out the HVAC vents in the dash ? I don't think so.
BTW The 11" does not have the dual 3" holes, the airbox does.
Originally posted by David_B
Now for the stock filter enclosure, it does not allow any more volume of air into the engine than a filter on a stick, it only acts as a heat shield, allowing ambient air in and HOT engine compartment air out.
Now for the stock filter enclosure, it does not allow any more volume of air into the engine than a filter on a stick, it only acts as a heat shield, allowing ambient air in and HOT engine compartment air out.
Originally posted by David_B
Now for volume. Volume is actually on the clean side of the filter. Taking in for consideration that filter restriction is elemenated or i should say reduced, due to the filter element being used, like an aftermarket filter, AFE or K&N drop-in...ie. surface restriction within the pipe itself, cubic inches of air within your intake pipe, before the filter element restriction kicks in. (in most cases, streight piping gives you a slight lag at lower RPMs), reduced surface restriction, note: plastic is like porting your intake system, it has almost a glass finish and easy to clean. anyway, all of the above allows more volume, making a complete system.
Now for volume. Volume is actually on the clean side of the filter. Taking in for consideration that filter restriction is elemenated or i should say reduced, due to the filter element being used, like an aftermarket filter, AFE or K&N drop-in...ie. surface restriction within the pipe itself, cubic inches of air within your intake pipe, before the filter element restriction kicks in. (in most cases, streight piping gives you a slight lag at lower RPMs), reduced surface restriction, note: plastic is like porting your intake system, it has almost a glass finish and easy to clean. anyway, all of the above allows more volume, making a complete system.
So with a filter the size of stock in the stock housing with a larger intake is all that is needed ? Guess my truck really doesn't run any better, I'm going back to the dyno shop and tell them you said it does no good, and I am not actually doing any better.
Originally posted by David_B
Ive done some research before buying my intake, now the Iceman is completely different than the K&N, it has twice the cubic inches within the system, larger bend radius, gradual reduction in diameter (cone shape for volocity), glass like inside surface (like porting your intake), and utilizes the stock filter enclosure (for shielding tempetures). The 5.4L filter enclosure has a 2.0 diameter snorkle, the Iceman removes the snorkle and gives you a 3.5 inch diameter sleeve that runs into the wheel well compartment, opening your system twice as much, dropping in a high flowing filter that actually supplies the engine with all the air it needs. In fact the stock system design, has a built in air horn, leading into the MAS.
Ive done some research before buying my intake, now the Iceman is completely different than the K&N, it has twice the cubic inches within the system, larger bend radius, gradual reduction in diameter (cone shape for volocity), glass like inside surface (like porting your intake), and utilizes the stock filter enclosure (for shielding tempetures). The 5.4L filter enclosure has a 2.0 diameter snorkle, the Iceman removes the snorkle and gives you a 3.5 inch diameter sleeve that runs into the wheel well compartment, opening your system twice as much, dropping in a high flowing filter that actually supplies the engine with all the air it needs. In fact the stock system design, has a built in air horn, leading into the MAS.
5* delta while moving is what is see by the IAT in the truck.
Yes, I checked all this with what the truck uses for the engine.
Some will say 1*F is good for 5 HP, others 1* is 1 HP. They never say where though ( flywheel or RW ).BTW Not a one will say anything about the open element and Tq, only HP.
BTW : might want to check your math with all the research you did. A circle of 2" has an area of 3.14 sq", a circle of 3.5" has an area of 9.62 sq". 10th grade math, Area=pi*r^2. That would be about 3 times the area ( actually a little more then 3 ). But your research told you that right ? I mean you did do more then just read marketing litature and product specs for the "research", right ?
Originally posted by David_B
When an intake system is designed correctly, the torque and horse power gains will be consistant across the entire powerband, if a streight pipe is used, the peek HP may be good, but, you will have valleys in your horse power gains, and hardly any torque, if not a loss.
When an intake system is designed correctly, the torque and horse power gains will be consistant across the entire powerband, if a streight pipe is used, the peek HP may be good, but, you will have valleys in your horse power gains, and hardly any torque, if not a loss.
Not SOP dyno numbers, but flow rates and dyno over stock ?
Let get the actual numbers on this system you are backing.
I've shown mine.....
Most of what you saw has merit, but with a little work, you could open up a whole new curve to your truck is all I am getting at, along with debunking the marketing specs of the closed element system mfgrs.
As I said I am not the only one to find this out, performance vendors have found the same thing. Try calling a Supporting vendor and ask.
I'm good with it if the Ice-Man actually does out perform my setup, but this is teh second time I have asked, show me the numbers from your truck.
And unless you, yourself have tested the open vs closed, don't pass the gosip around. This is now about the 5th time this has came around, again with no data to back it up, only mfgr marketing specs.
Long story short....show me the numbers !
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From: Under the flightpath of old ORD 22R
Originally posted by ROUSHFAN-1
Hey did you take that pic of me at my last yard party this summer...I got that same shirt, and I am just about that big......BTW : Just got back from buying Jason's 18s off his L.
I'm trying dearly to keep up with you, but I always seem to be loosing ground
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From: Florida
Cold Air Intake
Mr. 220-
I installed a Granatelli Motorsports cold air induction kit with the MAF that is tuned to go with it.
I'll put it this way: WHAT A DIFFERENCE !!!
Bottom end power is strong enough to smoke both tires AND I can pull a pretty decent pass from 70 mph...
Driving normally, I'm now getting 400 - 425 miles to a tank of gas.
Before all the mods, I was getting 375. But, of course, it's hard to keep your foot out of it...
Just my 2 cents worth...
I installed a Granatelli Motorsports cold air induction kit with the MAF that is tuned to go with it.
I'll put it this way: WHAT A DIFFERENCE !!!
Bottom end power is strong enough to smoke both tires AND I can pull a pretty decent pass from 70 mph...
Driving normally, I'm now getting 400 - 425 miles to a tank of gas.
Before all the mods, I was getting 375. But, of course, it's hard to keep your foot out of it...
Just my 2 cents worth...
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Hummm, not sure if i should appoligize?
Only becuase i think this is funny....Bling Bling is what you want, then thats cool! Thats a term that i learn on this board...one question, what does shiznit mean?
Anyway, If you read the paragraphs that i quote, i didnt state that your 11" filter on a stick, doesnt work, my only commit is that you stated that there is no Cool Air System on the market, i only corrected your fault statement, saying there is a cool air system, Let it be added to the record record and i quote again! the STOCK system is a cool air system, the stock system draws air from the wheel well compartment, right? Iceman intake only utilized the stock configuration and draws air from the same area. Making it a cool are system, with 3 not 2, Note: i stand corrected!
3 times more air into the cool air system. I should have done the equation for the above before Quoting it, sorry guys! what i meant was "a whole bunch of more air" is what i should have quoted. man im just glad i am arguing with someone that has proven to all, that he has made it to the 10th grade.
And YES the enclosure acts as a shield from the heat, for the incoming air....Now if you want to play on words or typos, then thats cool, im sure folk on this board can see through it.... I can do the same thing, "powder coated" not "power coated"...unless there is a racing term or coating that i have not learned yet, is it kinda like bling bling? anyway, i wasnt refering to letting heat out?, lol!!!! I do appligize if thats how you enterpeted the statement, I was refering to keeping the heat out of the intake air stream, do you understand now?
Now for the rest of your statements, i will answer them later because, its getting late.....
bye all
Anyway, If you read the paragraphs that i quote, i didnt state that your 11" filter on a stick, doesnt work, my only commit is that you stated that there is no Cool Air System on the market, i only corrected your fault statement, saying there is a cool air system, Let it be added to the record record and i quote again! the STOCK system is a cool air system, the stock system draws air from the wheel well compartment, right? Iceman intake only utilized the stock configuration and draws air from the same area. Making it a cool are system, with 3 not 2, Note: i stand corrected!
3 times more air into the cool air system. I should have done the equation for the above before Quoting it, sorry guys! what i meant was "a whole bunch of more air" is what i should have quoted. man im just glad i am arguing with someone that has proven to all, that he has made it to the 10th grade.
And YES the enclosure acts as a shield from the heat, for the incoming air....Now if you want to play on words or typos, then thats cool, im sure folk on this board can see through it.... I can do the same thing, "powder coated" not "power coated"...unless there is a racing term or coating that i have not learned yet, is it kinda like bling bling? anyway, i wasnt refering to letting heat out?, lol!!!! I do appligize if thats how you enterpeted the statement, I was refering to keeping the heat out of the intake air stream, do you understand now?
Now for the rest of your statements, i will answer them later because, its getting late.....
bye all
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From: Houston, by way of every major city in America.
Wow! Whole lot of hot air in this thread, and not just the underhood kind. If you want an ugly intake just for the sake of not letting 1 single degree of warmer air into the engine, then that's your lookout. If you want to be insulting to someone for wanting a good looking intake, then that's also your lookout. No need to lay sarcasm on so thick because most of us have the ability to
"see through" that as well. The plain fact is, that I have driven my truck with both systems. The factory airbox is restrictive, no matter if it has a free flowing filter or not. You can especially notice it up around 2500 to 3000 rpm's while trying to merge with freeway traffic. You can FEEL the smaller filter choking off air, the engine just will not open up any more. I took my K&N off to prove that to myself, and it's hard to deny. whatever minimal underhood temp difference slows an open filter intake down at under 30 mph, is made up where it really counts. I guess I don't see the big picture because I don't tow, huh??
,,,,98
shiznit-izn= 
"see through" that as well. The plain fact is, that I have driven my truck with both systems. The factory airbox is restrictive, no matter if it has a free flowing filter or not. You can especially notice it up around 2500 to 3000 rpm's while trying to merge with freeway traffic. You can FEEL the smaller filter choking off air, the engine just will not open up any more. I took my K&N off to prove that to myself, and it's hard to deny. whatever minimal underhood temp difference slows an open filter intake down at under 30 mph, is made up where it really counts. I guess I don't see the big picture because I don't tow, huh??
,,,,98 shiznit-izn=
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From: Under the flightpath of old ORD 22R
Re: Cold Air Intake
Originally posted by Brian T. Lemons
I installed a Granatelli Motorsports cold air induction kit with the MAF that is tuned to go with it.
I'll put it this way: WHAT A DIFFERENCE !!!
I installed a Granatelli Motorsports cold air induction kit with the MAF that is tuned to go with it.
I'll put it this way: WHAT A DIFFERENCE !!!
I had no problem until I put in the AirRam, that is the only time I had A/F ratio problems with it.
With the K&N ( or the GMS FIPK ) it hums like a fine tuned machine.
Just be careful if you ever try an AirRam on it, as it will outflow the stock computer code.
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From: Under the flightpath of old ORD 22R
Re: Hummm, not sure if i should appoligize?
Originally posted by David_B
Only becuase i think this is funny....Bling Bling is what you want, then thats cool!
Only becuase i think this is funny....Bling Bling is what you want, then thats cool!
Originally posted by David_B
Anyway, If you read the paragraphs that i quote, i didnt state that your 11" filter on a stick, doesnt work
Anyway, If you read the paragraphs that i quote, i didnt state that your 11" filter on a stick, doesnt work
Originally posted by David_B
my only commit is that you stated that there is no Cool Air System on the market, i only corrected your fault statement, saying there is a cool air system
my only commit is that you stated that there is no Cool Air System on the market, i only corrected your fault statement, saying there is a cool air system
Click Here :https://www.f150online.com/forums/sh...000#post776000
Still holds true, if an Ice-Man is a cool-air intake, then I guess a K&N is a hot air. Cool to hot 5*, that sounds like marketing to me.
Originally posted by David_B
I should have done the equation for the above before Quoting it, sorry guys! what i meant was "a whole bunch of more air" is what i should have quoted. man im just glad i am arguing with someone that has proven to all, that he has made it to the 10th grade.
I should have done the equation for the above before Quoting it, sorry guys! what i meant was "a whole bunch of more air" is what i should have quoted. man im just glad i am arguing with someone that has proven to all, that he has made it to the 10th grade.
I was commenting on your Research that you did. Seems like it was read the product specs and marketing litature only rather then actual research.
Originally posted by David_B
And YES the enclosure acts as a shield from the heat, for the incoming air....Now if you want to play on words or typos, then thats cool, im sure folk on this board can see through it.... I can do the same thing, "powder coated" not "power coated"...unless there is a racing term or coating that i have not learned yet, is it kinda like bling bling? anyway, i wasnt refering to letting heat out?, lol!!!! I do appligize if thats how you enterpeted the statement, I was refering to keeping the heat out of the intake air stream, do you understand now?
And YES the enclosure acts as a shield from the heat, for the incoming air....Now if you want to play on words or typos, then thats cool, im sure folk on this board can see through it.... I can do the same thing, "powder coated" not "power coated"...unless there is a racing term or coating that i have not learned yet, is it kinda like bling bling? anyway, i wasnt refering to letting heat out?, lol!!!! I do appligize if thats how you enterpeted the statement, I was refering to keeping the heat out of the intake air stream, do you understand now?
As you noted I make errors as well. I guess trying to get into a thought provoking, research laden conversation that I thought I was going to have, but I guess we are just going to argue.
If that is what you want, go to Coral.net.
Any numbers on your intake ?
As I asked 2 other times before, I was trying to learn something here, and the numbers could have the ability to teach me, but I guess you just want to argue about intake systems.....
BTW : Take a look at Rock's post on air volume & FIPKs ( BTW he is an HVAC guy, so he knows a thing or 2 about air systems, volume and static pressure on air systems ).
He has noted to a few about the Monkey-Shine on home made FIPKs and FIPKs that use stock filter housings.
Last edited by SSCULLY; Dec 6, 2002 at 11:42 AM.
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From: Under the flightpath of old ORD 22R
[QUOTE]Originally posted by 98SCREAMER
I guess I don't see the big picture because I don't tow, huh??,,,,98
So did you mean to say you don't tow more then 12,000# ?
I guess I don't see the big picture because I don't tow, huh??
,,,,98So did you mean to say you don't tow more then 12,000# ?
Senior Member
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From: Houston, by way of every major city in America.
Yep, the heaviest thing I've ever towed with my truck is an empty car dolly. It was the second day I owned the truck. I drove around with it adding weight and taking up space for another year before I removed it. It has taken up residence leaning against the outside wall of my garage,,,,98
,,,,98
Last edited by 98SCREAMER; Dec 6, 2002 at 01:12 PM.
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your right
There is no reason to argue....and i do appolize for being an A hole.
If you read back, i was only defending my belief and my knowledge on flowdynamic and aerodynamic. I am a Mechanical Engineer by trade and have been working on GE engines for years, on one of our military bases.
My only belief is that the Stock system is a cool air system, although you state that 5 degrees doesnt make a difference when driving, i agree with you it probably doesnt. But the fact is that when i am 4x4ing, towing and/or caught up in bumper to bumper traffic, i beleave that it would make a big difference in fuel consumption and engine life. 40 to 50 degree, i think you stated, in idle, is a big deal for folks that are towing, i beleave where i live it would even get hotter then that.
To clear a question mentioned earlier, the formula is for every 10 degrees you gain or loose 1%, that is across the board, Quote by Oscar Jackson, supercharger designer.
The other formula for filter surface is determined by area, minus 30%, will determine flow rate base on tube inlet diameter, i think thats how it go's, anyways, its a simple formula you can probably find, on the K&N web site. In other words, your probably right, when you said a 11" filter is best for the CFM for the F150, but, what i tried to say was adding a 25" filter doesnt means its going to even flow more, your engine will only use the flow rate it needs at a given RPM, once you reach maximum flow rate requirements, of course the orfice inlet at the throttle body or MAS become the restictive factor, if any.
Also i stated that the Ford Engineers actually put thought in the design of the stock system, although they are held within certain parameters, the flow charateristic of the stock system are excellent, of course for the application that they designing it for, low noise and smoothing the powerband.
If you read the handbook of mechanical Engineers you will find the reason behind the materials used and the shape and contours that where incorporated into the system. If they did not have to worry about noise and the parameters, then i am sure we wouldnt be arguing this subject, and any aftermarket intake wouldnt make a differents and maybe even loose HP, throughout the entire powerband, because I feel the Engineers can out design any aftermarket intake system out there, because, of there resources and money.
I will not argue, on the streight pipe configuration on volocity and HP gains, but i will say that the flowdynamics of a streight aluminum tube will affect your powerband, giving you deeper valleys and peeks within the powerband. If you review the dyno-test on any system, using a streight plastic or metal pipe, it will do the same thing.
I also beleave that you can actually design a system that is best for torque and horse power, by changing contours and shape and even adding guide vanes, or shaping the tubing as a venturi tube or simular designs.
the Ford Engineers did not invent this, neither did Iceman, it is flowdynamic facts and used in alot of applications including HVAC. Ask your friend, if you incorporate guide vanes in a HVAC system you reduce pressure and increase flow.....its that simple.
I have done my research, simple engineering principles determined my choice of intake. Of course, i may have looked a little deeper and maybe an over kill in my part...
Again, this is all i was trying to say and i am sorry for being an A hole.
If you read back, i was only defending my belief and my knowledge on flowdynamic and aerodynamic. I am a Mechanical Engineer by trade and have been working on GE engines for years, on one of our military bases.
My only belief is that the Stock system is a cool air system, although you state that 5 degrees doesnt make a difference when driving, i agree with you it probably doesnt. But the fact is that when i am 4x4ing, towing and/or caught up in bumper to bumper traffic, i beleave that it would make a big difference in fuel consumption and engine life. 40 to 50 degree, i think you stated, in idle, is a big deal for folks that are towing, i beleave where i live it would even get hotter then that.
To clear a question mentioned earlier, the formula is for every 10 degrees you gain or loose 1%, that is across the board, Quote by Oscar Jackson, supercharger designer.
The other formula for filter surface is determined by area, minus 30%, will determine flow rate base on tube inlet diameter, i think thats how it go's, anyways, its a simple formula you can probably find, on the K&N web site. In other words, your probably right, when you said a 11" filter is best for the CFM for the F150, but, what i tried to say was adding a 25" filter doesnt means its going to even flow more, your engine will only use the flow rate it needs at a given RPM, once you reach maximum flow rate requirements, of course the orfice inlet at the throttle body or MAS become the restictive factor, if any.
Also i stated that the Ford Engineers actually put thought in the design of the stock system, although they are held within certain parameters, the flow charateristic of the stock system are excellent, of course for the application that they designing it for, low noise and smoothing the powerband.
If you read the handbook of mechanical Engineers you will find the reason behind the materials used and the shape and contours that where incorporated into the system. If they did not have to worry about noise and the parameters, then i am sure we wouldnt be arguing this subject, and any aftermarket intake wouldnt make a differents and maybe even loose HP, throughout the entire powerband, because I feel the Engineers can out design any aftermarket intake system out there, because, of there resources and money.
I will not argue, on the streight pipe configuration on volocity and HP gains, but i will say that the flowdynamics of a streight aluminum tube will affect your powerband, giving you deeper valleys and peeks within the powerband. If you review the dyno-test on any system, using a streight plastic or metal pipe, it will do the same thing.
I also beleave that you can actually design a system that is best for torque and horse power, by changing contours and shape and even adding guide vanes, or shaping the tubing as a venturi tube or simular designs.
the Ford Engineers did not invent this, neither did Iceman, it is flowdynamic facts and used in alot of applications including HVAC. Ask your friend, if you incorporate guide vanes in a HVAC system you reduce pressure and increase flow.....its that simple.
I have done my research, simple engineering principles determined my choice of intake. Of course, i may have looked a little deeper and maybe an over kill in my part...
Again, this is all i was trying to say and i am sorry for being an A hole.
Last edited by David_B; Dec 7, 2002 at 09:08 PM.
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With intense testing of the thermo dynamics of the stock and K&N system, I have found the best system is to operate without a filter. However, I run a small box right before the intake, witch is equipped with a PHIF. (Panty hose intake filter) Her name will remain anonymous for the sake of discussion. From initial analysis, the PCM took a few day's to respond to the change of vital air being brought into the complex system, but now, she runs as smooth and is has more power throughout the entire power band.
I have named it the PIPK, pantyhose inline performance kit
*Patent pending*
Last edited by JJ's ****F on 12-07-2002 at 07:44 PM
I have named it the PIPK, pantyhose inline performance kit
*Patent pending*
Last edited by JJ's ****F on 12-07-2002 at 07:44 PM
Last edited by PhillipSVT; Dec 7, 2002 at 08:37 PM.
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From: Under the flightpath of old ORD 22R
Re: your right
Originally posted by David_B
Again, this is all i was trying to say and i am sorry for being an A hole.
Again, this is all i was trying to say and i am sorry for being an A hole.
With you also being an Engineer, now that the R&D part is over in your project, what are the actual numbers from it ?
Do you have flow rates on the MAFS, for the given Intake design ?
Also a Dyno sheet would be great, but if you don't have a before, then it might be an apples to wagon wheels for our 2 dyno sheets.
The big items I have always tracked is the Flow rate on the MAFS, and the A/F ratio.
If you have these, as I sadi before, I might learn something new that I did not know, but right now I have nothing to compart to the 2 configs that I have run ( 2 configs for FIPKs, actually 4 test runs, each setup with the stock MAFS, and each with the GMS MAFS ).
If you can email these to me, so I can take a look over them.
The items that I found best to track on testing this are:
- mph
- Engine RPM
- MAFS Flow Rate
- IAT reading.
I can send drop you an email with my AutoTap logs with these if you want to compare them to your as well. This offer still stands.
sms
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Question to your question
Theres alot i can learn in the automotive industry, like terminology that you all used.
let me ask you some questions, before i can answer your question?
You asked what is my MAFS flow rate, being stock it would be the same as yours. let me ask you so that i understand your question. You are asking me how much my MAFS (Mass Air Flow Sensor) Flows? Or is the question how much is flowing through my MAFS with the intake on? I presume your numbers are based on CFM flow through your MAFS?
Your second value to your equation, MPH, where does that become a factor in relationship to RPMs? or flow rates? I can understand your reason for RPMs being part of the equation but MPH? you lost me.....
and lastly IAT reading, does this mean "Incomming Air temperure?" i think thats what you mean? this is not an Engineering symbol or abbriviation, so you lost me again....can you please explain what you mean by this? I am sure you guys on this board use it, but in the engineering field it does not compute, you lost me again....
through your testing what are the CFM flow rates, and did you compare them between aftermarket intake systems or did you test the stock system, if so what is it?
Do you have dyno charts? do they include torque and HP radio, within the powerbandand?
Your concerns are not at idle or below 35mph, although that is a concern for people and myself that tow, tow up hills, 4 wheel drive off road and drive in bumper to bumper traffic, right? Howabout people that drive there trucks on dirt and dusty roads? these are legitimate concerns, do you agree?
A/F Radio is not a problem, being that your PCM would accommodate any aftermarket intake pipe, unless you have a Ram Air effect, super or turbo would be a good example. Am i wrong?
For general information and why Automotive Engineers, Knight Engineering and now K&N uses Elastomers for intakes systems: Thermal conductivity2) W/(m-K); Aluminum = 204, Stainless steel = 48....58 and Elastomer crosslink = .41 of course automotive manufactures use ABS, which has simular properties as crosslinks. Thats why in the aircraft and microprocessor industry uses alumunim for heat sinks. The thinner the wall thickness, the more heat conductive it is, moving electrons are in metals, not in plastic, fuse boxes under the hood are made of ABS.
please let me know....
let me ask you some questions, before i can answer your question?
You asked what is my MAFS flow rate, being stock it would be the same as yours. let me ask you so that i understand your question. You are asking me how much my MAFS (Mass Air Flow Sensor) Flows? Or is the question how much is flowing through my MAFS with the intake on? I presume your numbers are based on CFM flow through your MAFS?
Your second value to your equation, MPH, where does that become a factor in relationship to RPMs? or flow rates? I can understand your reason for RPMs being part of the equation but MPH? you lost me.....
and lastly IAT reading, does this mean "Incomming Air temperure?" i think thats what you mean? this is not an Engineering symbol or abbriviation, so you lost me again....can you please explain what you mean by this? I am sure you guys on this board use it, but in the engineering field it does not compute, you lost me again....
through your testing what are the CFM flow rates, and did you compare them between aftermarket intake systems or did you test the stock system, if so what is it?
Do you have dyno charts? do they include torque and HP radio, within the powerbandand?
Your concerns are not at idle or below 35mph, although that is a concern for people and myself that tow, tow up hills, 4 wheel drive off road and drive in bumper to bumper traffic, right? Howabout people that drive there trucks on dirt and dusty roads? these are legitimate concerns, do you agree?
A/F Radio is not a problem, being that your PCM would accommodate any aftermarket intake pipe, unless you have a Ram Air effect, super or turbo would be a good example. Am i wrong?
For general information and why Automotive Engineers, Knight Engineering and now K&N uses Elastomers for intakes systems: Thermal conductivity2) W/(m-K); Aluminum = 204, Stainless steel = 48....58 and Elastomer crosslink = .41 of course automotive manufactures use ABS, which has simular properties as crosslinks. Thats why in the aircraft and microprocessor industry uses alumunim for heat sinks. The thinner the wall thickness, the more heat conductive it is, moving electrons are in metals, not in plastic, fuse boxes under the hood are made of ABS.
please let me know....