air filter help!!
Thread Starter
Racer
Joined: Aug 2005
Posts: 436
Likes: 0
From: milton wi
air filter help!!
I took off my stock intake and put a k&n pod filter on the throttle body. But having to take of the stock intake requires the removel of the MAF, it hasen't thrown a code yet. Will it? Or is there anyway to get around it? thanks
Drifting
Joined: Dec 2005
Posts: 1,313
Likes: 2
From: High Ridge Missouri
Yes it will. And I'm trying to figure out why you'd want to remove one of the most crucial sensors for performance on your car, as well change to air filter style that pulls hot air from directly behind the radiator?
Le Mans Master
Joined: Feb 2006
Posts: 8,753
Likes: 9
From: Louisiana
As stated, yes it will and should throw a code. The MAF is probably the best way to measure the amount of air an engine takes in. It measures volume and also makes compensation for density. It is good way to help engines keep the correct air/fuel ratio. The ECM uses the infomation from the MAF to make adjustments in the air/fuel ratio. It sends resistance measurements to the ECM and as the incoming temperature goes down the resistance values go up, and vis-versa....seen on a scan in g/sec.
I too am interested to see how it runs/drives without a MAF.
I too am interested to see how it runs/drives without a MAF.
Race Director
Joined: Dec 2002
Posts: 13,348
Likes: 233
From: SCMR Rat Pack'r Charter Member..Great Bend KS
Originally Posted by Buttz
Damn ok Ill put it back on, from what I could tell it seemed fine I only went for a 2 mile drive. thanks for the help
You mean you could actually DRIVE the car with the MAF removed????!! I could see that it might START, but to actually DRIVE it amazes me.I'll bet when it warmed up, it would be an interesting experience.
Larry
code5coupe
Team Owner
Joined: Sep 2001
Posts: 62,157
Likes: 1,731
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Uhhhh, no you cant keep driving the car without a MAF
It and your O2 sensor are two that you cant do without.
It and your O2 sensor are two that you cant do without.
Team Owner
Joined: Jun 2001
Posts: 26,196
Likes: 0
From: Orlando FL
St. Jude Donor '08-'09
Originally Posted by 94ZR1
Interesting
How does it run with no maf
How does it run with no maf
Last edited by GIJoe; Sep 27, 2006 at 12:19 PM.
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Team Owner
Joined: Jun 2001
Posts: 26,196
Likes: 0
From: Orlando FL
St. Jude Donor '08-'09
Originally Posted by Buttz
I took off my stock intake and put a k&n pod filter on the throttle body. But having to take of the stock intake requires the removel of the MAF, it hasen't thrown a code yet. Will it? Or is there anyway to get around it? thanks
You MUST have the MAF on it to work properly. This measures the amount of air going into the car, without it, it basically just goes into limp mode because it can no longer measure the air flow, which is what the computer needs to calculate how much fuel, etc to use.
I think this might be what you want to do instead if you are going that route.
Here is mine:
Goto Lowes/home Depot in the PVC pipe isle and pickup a 4" to 3" reducer, clamp that between the TB and MAF, then just clamp a 3" opening cone filter to the MAF.
Just be warned, the entire forum will make fun of you. Everyone will say "hot air blah blah, wont don't anything over the stock intake blah blah, you test it and let us know that it wont work and we were right blah blah" yet nobody has yet to show me any testing they have done themselves to show if I was right or wrong.
Either way I don't care, I like it and it's my car.
Thread Starter
Racer
Joined: Aug 2005
Posts: 436
Likes: 0
From: milton wi
Originally Posted by GIJoe
You MUST have the MAF on it to work properly. This measures the amount of air going into the car, without it, it basically just goes into limp mode because it can no longer measure the air flow, which is what the computer needs to calculate how much fuel, etc to use.
I think this might be what you want to do instead if you are going that route.
Here is mine:
Goto Lowes/home Depot in the PVC pipe isle and pickup a 4" to 3" reducer, clamp that between the TB and MAF, then just clamp a 3" opening cone filter to the MAF.
Just be warned, the entire forum will make fun of you. Everyone will say "hot air blah blah, wont don't anything over the stock intake blah blah, you test it and let us know that it wont work and we were right blah blah" yet nobody has yet to show me any testing they have done themselves to show if I was right or wrong.
Either way I don't care, I like it and it's my car.
I think this might be what you want to do instead if you are going that route.
Here is mine:
Goto Lowes/home Depot in the PVC pipe isle and pickup a 4" to 3" reducer, clamp that between the TB and MAF, then just clamp a 3" opening cone filter to the MAF.
Just be warned, the entire forum will make fun of you. Everyone will say "hot air blah blah, wont don't anything over the stock intake blah blah, you test it and let us know that it wont work and we were right blah blah" yet nobody has yet to show me any testing they have done themselves to show if I was right or wrong.
Either way I don't care, I like it and it's my car.
Advanced
Joined: Sep 2006
Posts: 55
Likes: 0
From: Wilmington NC
I'll be perfectly honest with you - I'm not sold on cold air intakes. I do believe that going from stock to a CAI on most cars WILL make a difference - but not because of the air charge temp. Smoothing out and enlarging the intake plumbing WILL flow a lot more air. In my opinion THAT is where the power increase comes from.
In theory a CAI should make a good bit more power but theory and reality aren't always the same thing. Having raced many cars over the years I can tell you that IN MY EXPERIENCE going from a stock airbox to a CAI made a big difference but going from the CAI to something similar to what you did (filter on the TB) had no noticable change in power.
If people want to complain they are arguing theory. I doubt anyone here can provide tangible empirical data supporting a claim that a high-flow filter clamped to the throttle body makes less power than a CAI because no one has tried both on a dyno or dragstrip. They take their stock airbox out, put on a CAI and feel a big difference so their minds are set. End of story.
In theory a CAI should make a good bit more power but theory and reality aren't always the same thing. Having raced many cars over the years I can tell you that IN MY EXPERIENCE going from a stock airbox to a CAI made a big difference but going from the CAI to something similar to what you did (filter on the TB) had no noticable change in power.
If people want to complain they are arguing theory. I doubt anyone here can provide tangible empirical data supporting a claim that a high-flow filter clamped to the throttle body makes less power than a CAI because no one has tried both on a dyno or dragstrip. They take their stock airbox out, put on a CAI and feel a big difference so their minds are set. End of story.
Team Owner
Joined: Jun 2001
Posts: 26,196
Likes: 0
From: Orlando FL
St. Jude Donor '08-'09
Originally Posted by Drew Manzella
I'll be perfectly honest with you - I'm not sold on cold air intakes. I do believe that going from stock to a CAI on most cars WILL make a difference - but not because of the air charge temp. Smoothing out and enlarging the intake plumbing WILL flow a lot more air. In my opinion THAT is where the power increase comes from.
In theory a CAI should make a good bit more power but theory and reality aren't always the same thing. Having raced many cars over the years I can tell you that IN MY EXPERIENCE going from a stock airbox to a CAI made a big difference but going from the CAI to something similar to what you did (filter on the TB) had no noticable change in power.
If people want to complain they are arguing theory. I doubt anyone here can provide tangible empirical data supporting a claim that a high-flow filter clamped to the throttle body makes less power than a CAI because no one has tried both on a dyno or dragstrip. They take their stock airbox out, put on a CAI and feel a big difference so their minds are set. End of story.
In theory a CAI should make a good bit more power but theory and reality aren't always the same thing. Having raced many cars over the years I can tell you that IN MY EXPERIENCE going from a stock airbox to a CAI made a big difference but going from the CAI to something similar to what you did (filter on the TB) had no noticable change in power.
If people want to complain they are arguing theory. I doubt anyone here can provide tangible empirical data supporting a claim that a high-flow filter clamped to the throttle body makes less power than a CAI because no one has tried both on a dyno or dragstrip. They take their stock airbox out, put on a CAI and feel a big difference so their minds are set. End of story.
A side note on your statement... i think that another reason that the CAI's people install create more flow is because 95% of the time, its a single pipe that replaces a huge box, lots of tubes and hoses, etc on most cars. My tiburon's for instance.. I had an ENTIRE trash bag full of parts I removed from the intake. The final intake opening itself once I found where it sucked in the air was roughly smaller than the size of my fist. Then it wound all over the place, into several resonators, then to the filter box, then finally to the motor.
So I would say most of the gains from a CAI come from the fact that you are replacing all the maze of duct with a more efficient air path.
I totally gree on straightening out the air flow to get more air in, or help it flow better works wonders.
Instructor
Joined: Jun 2005
Posts: 231
Likes: 0
From: Waterbury Connecticut
Originally Posted by GIJoe
You MUST have the MAF on it to work properly. This measures the amount of air going into the car, without it, it basically just goes into limp mode because it can no longer measure the air flow, which is what the computer needs to calculate how much fuel, etc to use.
I think this might be what you want to do instead if you are going that route.
Here is mine:
Goto Lowes/home Depot in the PVC pipe isle and pickup a 4" to 3" reducer, clamp that between the TB and MAF, then just clamp a 3" opening cone filter to the MAF.
Just be warned, the entire forum will make fun of you. Everyone will say "hot air blah blah, wont don't anything over the stock intake blah blah, you test it and let us know that it wont work and we were right blah blah" yet nobody has yet to show me any testing they have done themselves to show if I was right or wrong.
Either way I don't care, I like it and it's my car.
I think this might be what you want to do instead if you are going that route.
Here is mine:
Goto Lowes/home Depot in the PVC pipe isle and pickup a 4" to 3" reducer, clamp that between the TB and MAF, then just clamp a 3" opening cone filter to the MAF.
Just be warned, the entire forum will make fun of you. Everyone will say "hot air blah blah, wont don't anything over the stock intake blah blah, you test it and let us know that it wont work and we were right blah blah" yet nobody has yet to show me any testing they have done themselves to show if I was right or wrong.
Either way I don't care, I like it and it's my car.
Race Director
Joined: Dec 2002
Posts: 13,348
Likes: 233
From: SCMR Rat Pack'r Charter Member..Great Bend KS
Originally Posted by GIJoe
You are correct.
F the haters
F the haters
Seriously, I have no doubt that a switch from a non-CAI to a CAI...providing no restrictions are introduced in the process...will bring a power increase, however small.
But, somehow, hose-clamping HomeDepot plumbing components onto your Corvette seems a bit, well....I don't know, unprofessional?
There was a post on the CF several days ago, which showed PVC pipe used for an intake. The fabricator had hopes of garnering a few show points. I didn't say this on that particular thread, but if I were one of the show judges, I'd have been deducting points for it.....
Larry
code5coupe
Team Owner
Joined: Jun 2005
Posts: 46,295
Likes: 2,596
From: Northern, VA
St. Jude Donor '15
"In honor of jpee"
You're such a damned purist, Larry! 
I mean, really...if a plunger would add 5 horsepower, I bet you'd be against using THAT in the engine bay of a Corvette, too, right???? Some people, honestly......
I mean, really...if a plunger would add 5 horsepower, I bet you'd be against using THAT in the engine bay of a Corvette, too, right???? Some people, honestly......
Originally Posted by rocco16
In other words: don't bother me with your opinion, my mind is made up.
Seriously, I have no doubt that a switch from a non-CAI to a CAI...providing no restrictions are introduced in the process...will bring a power increase, however small.
But, somehow, hose-clamping HomeDepot plumbing components onto your Corvette seems a bit, well....I don't know, unprofessional?
There was a post on the CF several days ago, which showed PVC pipe used for an intake. The fabricator had hopes of garnering a few show points. I didn't say this on that particular thread, but if I were one of the show judges, I'd have been deducting points for it.....
Larry
code5coupe
Seriously, I have no doubt that a switch from a non-CAI to a CAI...providing no restrictions are introduced in the process...will bring a power increase, however small.
But, somehow, hose-clamping HomeDepot plumbing components onto your Corvette seems a bit, well....I don't know, unprofessional?
There was a post on the CF several days ago, which showed PVC pipe used for an intake. The fabricator had hopes of garnering a few show points. I didn't say this on that particular thread, but if I were one of the show judges, I'd have been deducting points for it.....
Larry
code5coupe