Hacked Stock AirBox Questions?
Hacked Stock AirBox Questions?
Here is some information about modifying the OEM airbox for increased airflow:
The intake snorkel (one that sits over the radiator to bring air from the front of the hood). I've removed that part alone and ran the stock intake and there were noticeable gains.
Besides that, the air box design is poor because the air is forced to turn 180 degrees from in to out. In the middle of that is the filter which does not flow air at angles. Additionally, the filter area is much smaller than, say a cone intake, so it offers a larger pressure drop and hence drops the flow. The stock intake box sucks.
The worst thing is the snorkel. It is really restrictive.
The resonator (between the MAF and throttle body) is not bad at all. Only a minor size step-down. The resonator chamber does little to impede flow.
No air flows through the resonator box. It has been argued that the slim box just before the MAF is not actually a resonator. Our intakes have a sealed box attached to the intake piping. On 95 - 96 it was on top of the intake scoop. On 97 - 99 it's under the battery tray. That is the resonator box that keeps the stock intake quiet.
The most restrictive part of our intake is the scoop. Open up the resonator box under the battery (on 97 - 99 models) and you have another source of cooler air to enter the intake when the car isn't moving. When your car is moving, the scoop should ram some air into the intake system. Removal of that box for modification, combined with drilling a few large holes in the back of it right where it butts up against the inner fender well, and reinstallation can provide a source of increased airflow- and that air should theoretically be cooler than it would be w/ a 100% stock setup.. There's cool air down there where the modifications will be. Most of the piping on our intake is big enough to flow a good amount of air into the throttle body- the key is to get more air in in the first place. The scoop is to narrow to allow that same amount of flow. Giving another source of air intake to the stock piping allows the car's stock intake to breathe better.
One option is the "Hacked air box" I have a K&N panel filter which the surface area is more than enough to feed a 3inch throttle body, this is a good intake, I have sense moved to a JWT filter and velocity stack only to straighten the path of the air (I made a new midpipe to position the filter above the lower air box which is still fed cold air from the snorkel and bypassed resonator), other than that this set up is just the same
Also, if doing an air box mod leave the snorkel, taking it off only exposes your intake to hot air, and it will do little in the way of restriction. The most restrictive part of the stock intake is the box itself, the inlet where air comes in is smaller than the outlet where air goes towards the throttle body. Taking off the snorkel will do nothing for this and will only add to increasing air temps. That is why the hacked air box works, because you provide a second source of air that can match the size of what the opening in the box can suck towards the throttle body.
The intake snorkel (one that sits over the radiator to bring air from the front of the hood). I've removed that part alone and ran the stock intake and there were noticeable gains.
Besides that, the air box design is poor because the air is forced to turn 180 degrees from in to out. In the middle of that is the filter which does not flow air at angles. Additionally, the filter area is much smaller than, say a cone intake, so it offers a larger pressure drop and hence drops the flow. The stock intake box sucks.
The worst thing is the snorkel. It is really restrictive.
The resonator (between the MAF and throttle body) is not bad at all. Only a minor size step-down. The resonator chamber does little to impede flow.
No air flows through the resonator box. It has been argued that the slim box just before the MAF is not actually a resonator. Our intakes have a sealed box attached to the intake piping. On 95 - 96 it was on top of the intake scoop. On 97 - 99 it's under the battery tray. That is the resonator box that keeps the stock intake quiet.
The most restrictive part of our intake is the scoop. Open up the resonator box under the battery (on 97 - 99 models) and you have another source of cooler air to enter the intake when the car isn't moving. When your car is moving, the scoop should ram some air into the intake system. Removal of that box for modification, combined with drilling a few large holes in the back of it right where it butts up against the inner fender well, and reinstallation can provide a source of increased airflow- and that air should theoretically be cooler than it would be w/ a 100% stock setup.. There's cool air down there where the modifications will be. Most of the piping on our intake is big enough to flow a good amount of air into the throttle body- the key is to get more air in in the first place. The scoop is to narrow to allow that same amount of flow. Giving another source of air intake to the stock piping allows the car's stock intake to breathe better.
One option is the "Hacked air box" I have a K&N panel filter which the surface area is more than enough to feed a 3inch throttle body, this is a good intake, I have sense moved to a JWT filter and velocity stack only to straighten the path of the air (I made a new midpipe to position the filter above the lower air box which is still fed cold air from the snorkel and bypassed resonator), other than that this set up is just the same
Also, if doing an air box mod leave the snorkel, taking it off only exposes your intake to hot air, and it will do little in the way of restriction. The most restrictive part of the stock intake is the box itself, the inlet where air comes in is smaller than the outlet where air goes towards the throttle body. Taking off the snorkel will do nothing for this and will only add to increasing air temps. That is why the hacked air box works, because you provide a second source of air that can match the size of what the opening in the box can suck towards the throttle body.
anyone got pics of this? or a more descriptive walkthrough?
Read the instructions, he clearly says that removing the snorkel will do nothing but get you hot air in the intake. He also indicated that the drilling is to be done on the resonator underneath the battery tray.
when i was saying "yank it off" i was talking about the scoop that can be found under the battery tray. that would leave an opening into the intake piping that comes down from the grill.
Before I got my PR Intake clone, I took that scoop off, then took the resinator box off that was under the battery. I used some A/C tape that I had from my previous job to tape the bottom of the snorkle, so hot air would not come through. Didnt notice any power gains, just more noise.
How about this? LEAVE YOUR INTAKE ALONE.
You will most likely get bored of the hacked one and have to glue the drilled pieces out, than you will go WTF? where did I put them? And your dad/mom/wife/dog will say "Oh I threw those pieces of useless plastic away." And you would be like NOOOOOOOOOOOOOOOO!
:
You will most likely get bored of the hacked one and have to glue the drilled pieces out, than you will go WTF? where did I put them? And your dad/mom/wife/dog will say "Oh I threw those pieces of useless plastic away." And you would be like NOOOOOOOOOOOOOOOO!
:
How about this? LEAVE YOUR INTAKE ALONE.
You will most likely get bored of the hacked one and have to glue the drilled pieces out, than you will go WTF? where did I put them? And your dad/mom/wife/dog will say "Oh I threw those pieces of useless plastic away." And you would be like NOOOOOOOOOOOOOOOO!:
You will most likely get bored of the hacked one and have to glue the drilled pieces out, than you will go WTF? where did I put them? And your dad/mom/wife/dog will say "Oh I threw those pieces of useless plastic away." And you would be like NOOOOOOOOOOOOOOOO!
:
from the way phenryiv makes it sound the stock box is garbage.
ive already ordered the stock K&N drop in air filter for 44 bux from courtesy, which is supposed to allow more air in through to the resonator box. but if the intake itself is restricting air, no matter what fancy filter for the stock box i buy, its still gonna remain the same.
ive already ordered the stock K&N drop in air filter for 44 bux from courtesy, which is supposed to allow more air in through to the resonator box. but if the intake itself is restricting air, no matter what fancy filter for the stock box i buy, its still gonna remain the same.
rather than drilling holes in anything just remove the whole lower half of the air box and find a way to keep the filter there. that way you can go back if you feel the need. thats what i did.
from the way phenryiv makes it sound the stock box is garbage.
ive already ordered the stock K&N drop in air filter for 44 bux from courtesy, which is supposed to allow more air in through to the resonator box. but if the intake itself is restricting air, no matter what fancy filter for the stock box i buy, its still gonna remain the same.
ive already ordered the stock K&N drop in air filter for 44 bux from courtesy, which is supposed to allow more air in through to the resonator box. but if the intake itself is restricting air, no matter what fancy filter for the stock box i buy, its still gonna remain the same.
Well try it. I'm actually selling my dirty K&N for $20 shipped. Return the new one you got. Mine only has like 3kmiles on it. Let me know.
EDIT: I just checked my email and someone already wants it. I'll let you know if they fall through, IF you want to know.
EDIT: I just checked my email and someone already wants it. I'll let you know if they fall through, IF you want to know.
Last edited by IlyaK; Oct 24, 2007 at 02:12 PM.
what about amsoils drop in air filter? is that better or gonna allow the same amount of dust?
or is the problem drop in air filters all together
or is the problem drop in air filters all together
Last edited by ROCKART; Oct 24, 2007 at 03:00 PM.
is the amsoil a "high flow air filter" like the K&N drop in?
basically im looking for a CHEAP modded intake. hacked air box + K&N drop in was my original idea. at this point thats not lookin so hot so what do you yall think would be my best cost vs. effectiveness addition
basically im looking for a CHEAP modded intake. hacked air box + K&N drop in was my original idea. at this point thats not lookin so hot so what do you yall think would be my best cost vs. effectiveness addition
this is turning into another "what intake is better" thread.
How about this? LEAVE YOUR INTAKE ALONE.
You will most likely get bored of the hacked one and have to glue the drilled pieces out, than you will go WTF? where did I put them? And your dad/mom/wife/dog will say "Oh I threw those pieces of useless plastic away." And you would be like NOOOOOOOOOOOOOOOO!:
You will most likely get bored of the hacked one and have to glue the drilled pieces out, than you will go WTF? where did I put them? And your dad/mom/wife/dog will say "Oh I threw those pieces of useless plastic away." And you would be like NOOOOOOOOOOOOOOOO!
:is the amsoil a "high flow air filter" like the K&N drop in?
basically im looking for a CHEAP modded intake. hacked air box + K&N drop in was my original idea. at this point thats not lookin so hot so what do you yall think would be my best cost vs. effectiveness addition
basically im looking for a CHEAP modded intake. hacked air box + K&N drop in was my original idea. at this point thats not lookin so hot so what do you yall think would be my best cost vs. effectiveness addition
.Just get a popcharger style intake aka cone filter attached to your MAF sensor via a MAF adapter. That way you will enjoy the sound for about 2 months and when you get bored of the noise and loss of low end (esp if you're auto) you can put your stock one back in one piece.
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