Is the OEM Airbox really THAT bad? (Dilemma inside and advice needed).
#1
Member: Jr Geezer's Club
Thread Starter
Is the OEM Airbox really THAT bad? (Dilemma inside and advice needed).
I recently went with an Aftermarket Air Cleaner/Intake on my stock C6. I did this b/c I have headers on the way and was told I need to flow more air for max HP increase from headers. The filter is the Halltech Stinger. It is another one of these large exposed K&N style filters with the bridgeover to the Mass Air Flow sensor and throttle body. It looks very well made (and like it will flow good CFM of air) but now I have a little dilemma.
I also recently had the complete Widebody conversion done to my C6. A benefit of the small nostril-opening on the Z06 nose-cone is that particular scoop is a functional breathing port to Air filter area. So yes....it provides a straight shot of cold-air directly onto my Halltech A/F. (Even with the hood closed you can kneel down and see through the little mesh grill and see my filter element.) My dilemma is: In addition to the beneficial cold air it is providing I am concerned about rain-water (or wash-water) saturating my filter element.
I thought about fabbing-up a little splash-guard, or some way to divert water away from the element, but to be honest at this moment I am considering just going back to my stock airbox before it is tuned with headers.
I'm wondering just how bad the OEM airbox really flows air? Has it gotten a bad rap just b/c the aftermarket companies are eager to sell you something that you really don't need? Can the OEM filter box be improved without a total hack-up? Say with the K&N drop-ins?
I closing...it seems to me that General Motors Engineers in their quest to get their 400/400 numbers, wouldn't leave the LS2 gasping for air when it would be so simple to provide more CFM with a larger airbox if really required.
Ideas, thoughts, or advice?
Bone
I also recently had the complete Widebody conversion done to my C6. A benefit of the small nostril-opening on the Z06 nose-cone is that particular scoop is a functional breathing port to Air filter area. So yes....it provides a straight shot of cold-air directly onto my Halltech A/F. (Even with the hood closed you can kneel down and see through the little mesh grill and see my filter element.) My dilemma is: In addition to the beneficial cold air it is providing I am concerned about rain-water (or wash-water) saturating my filter element.
I thought about fabbing-up a little splash-guard, or some way to divert water away from the element, but to be honest at this moment I am considering just going back to my stock airbox before it is tuned with headers.
I'm wondering just how bad the OEM airbox really flows air? Has it gotten a bad rap just b/c the aftermarket companies are eager to sell you something that you really don't need? Can the OEM filter box be improved without a total hack-up? Say with the K&N drop-ins?
I closing...it seems to me that General Motors Engineers in their quest to get their 400/400 numbers, wouldn't leave the LS2 gasping for air when it would be so simple to provide more CFM with a larger airbox if really required.
Ideas, thoughts, or advice?
Bone
Last edited by Bone Daddy; 02-06-2007 at 08:49 AM.
#2
Team Owner
Actually I saw NO HP gain in a before and after dyno pulls when I installed a HALLTECH Stinger. I believe the OEM air box/filters are fine for a stock motor. Of course once you start modding the benefits of additional "breathing" should be obvious.
Hope this helps.
Tom
Hope this helps.
Tom
#5
Somba master
I have the Halltech too. Ed (Pipedreams-Nakid parts) has a block off cover for that area, which will keep rain and washwater off the filter.
GM
GM
#6
#7
Race Director
On a stock Z06 that "scoop" is NOT functional, it's blocked by a plate.
The OEM airbox/filter works fine but it flows air that has already been heated by passing thru the radiator and engine compartment. Those of us that have changed to a CAI by cutting the radiator shroud or routing air from the grill area get the benefit of colder air and a less restrictive filter that we only have to buy once.
The OEM airbox/filter works fine but it flows air that has already been heated by passing thru the radiator and engine compartment. Those of us that have changed to a CAI by cutting the radiator shroud or routing air from the grill area get the benefit of colder air and a less restrictive filter that we only have to buy once.
Last edited by haljensen; 02-06-2007 at 10:35 AM.
#8
Drifting
The Halltech unit is a quality piece, and I would not switch back to the OEM filter for any reason. The benefits of a CAI do not show up on the dyno, but will pay dividends on the street and at the track.
Sounds like the Pipedreams shield is just the ticket for you.
Sounds like the Pipedreams shield is just the ticket for you.
#9
Safety Car
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if the filter becomes soaked it could become a problem and pass water.
you might be able to fashion a 90 degree shield right after the hole so any water would hit it and fall down while air would get pulled around it.
why not add the z06 air intake ducting, since you already added the other pieces ?
#10
Member: Jr Geezer's Club
Thread Starter
There are a couple louvers on the radiator shroud that allows you to see straight through the scoop (through the shroud) and actually see the filter element. The filter is getting a direct shot of outside air.
#11
Member: Jr Geezer's Club
Thread Starter
Great tip I think I'll go this route! Thank you!
~~~~~~~~~~~~~~~~
Whoops nevermind. I will still get wind-driven rain water even with Eds diverter through the nose scoop.
Last edited by Bone Daddy; 02-06-2007 at 12:59 PM.
#13
Member: Jr Geezer's Club
Thread Starter
http://forums.corvetteforum.com/show...ight=winnebago
Hey wait a minute there Cowboy! You're not envious! I remember a thread of yours not too long ago about how much you love your "Narrow Body".
http://forums.corvetteforum.com/show...ght=narrowbody
Last edited by Bone Daddy; 02-06-2007 at 01:09 PM.
#16
Drifting
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St. Jude Donor '06-'07
Hey bud you know me I'll get the photos out. I did post some a few days ago when it still had the stock wheels. Reason I haven't thus far is it's not quite done.
Hey wait a minute there Cowboy! You're not envious! I remember a thread of yours not too long ago about how much you love your "Narrow Body".
Hey wait a minute there Cowboy! You're not envious! I remember a thread of yours not too long ago about how much you love your "Narrow Body".
I'm just anxious to see your final product.
#17
I never had a problem opening completely the nozzles on my Ram Air T/A. Any water will be quickly "dried out" in the gauze type filters by the flow. The Haltech, SLP and K&N Aircharger are all the same basically and all quality made. I'm going to push the shroud back, per a posting on the forum, and open up the lower lip to move cold air up and into the K&N element in front of the shroud. The hood very effectively seals the intake from the engine compartment heat. Dynos never pick up the effect better breathing shows in a CAI device. Same on the Ram Air Firebirds. But there is no doubt that it is real and shows itself under speed when the air has velocity.
#18
Le Mans Master
On a stock Z06 that "scoop" is NOT functional, it's blocked by a plate.
The OEM airbox/filter works fine but it flows air that has already been heated by passing thru the radiator and engine compartment. Those of us that have changed to a CAI by cutting the radiator shroud or routing air from the grill area get the benefit of colder air and a less restrictive filter that we only have to buy once.
The OEM airbox/filter works fine but it flows air that has already been heated by passing thru the radiator and engine compartment. Those of us that have changed to a CAI by cutting the radiator shroud or routing air from the grill area get the benefit of colder air and a less restrictive filter that we only have to buy once.
#19
Le Mans Master
i really dont think it will be a problem, unless you drive thru a down pour.
if you're not comfortable with it, get the halltech cold air mod for the filter. i think it basically seals the filter and it becomes a bottom breather. use the airflow from the scoop to cool the engine
if you're not comfortable with it, get the halltech cold air mod for the filter. i think it basically seals the filter and it becomes a bottom breather. use the airflow from the scoop to cool the engine
#20
Le Mans Master
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St. Jude Donor '09
My opinion from what I've read here and elsewhere (you know what they say about opinions ), is that the stock airbox/filters breathe very well. There is reportedly little to no measurable benefit from using aftermarket filters in the stock boxes or an aftermarket intake short of a true bottom breather like LPE, Callaway, or Vararam, and with any of those you risk water ingestion should you drive in the rain or through standing water. My $0.02.