Cobb Airbox

[CorkSport]

We have just finished test fitting the airbox for the COBB SRI.

http://www.corksport.com/images/add_content/COBBCAB.jpg

The part fits great and there are a few things we have built into the box.
The box seals the MAF housing against the side.
We changed the top design so it uses a two sided seal against the airbox body for better sealing.
We have done some extensive testing and we will release the data when we have the boxes ready to sell.
We closed up the fitment against the headlight area.

Derrick

[djza2u1]

great when can i buy one. And will it interfear with the cobb FMIC

[karl hungus]

gold star for corksport picking up cobb's slack.

[Speed3Rookie]

Great stuff.....

ETA?
1

[SubieKiller3]

nice work. so when do you think it will be available? also, an estimated price?

[CWPspeed3]

Looks pretty good, interested to hear more about it.

[714ms3]

Will it be offered in anodized blue?

[CorkSport]

To answer the posted questions,

We have not tried it out on a COBB FMIC equipped vehicle.

ETA is end of july for these to be in stock and ready to sell

Estimated price is $100

The box is made from FRP so anodizing is out of the question. You could get the box painted easy enough any color you could want.

Derrick

[corner-hard]

very sweet :)

[CnoTataymo]

Will this also fit the CP-E Nano? Just curious.

[jengajoe]

Will the box fit the larger Amsoil dry flow filter some of us are using with the COBB intake? (uhm)
Part number for the filter is EaAU4560 and the dimensions can be found here: http://www.amsoil.com/StoreFront/eaau.aspx
Pics of the filter installed, etc can be found here:
http://www.msprotege.com/forum/showthread.php?t=123695563&page=2

[prspect]

How is the Cobb Airbox mounted? Is the Cobb SRI bracket reused or are there new mounting points?

[SPEEDYHANS]

it looks realy good

[zx2man]

2ND that on the amsoil air filter which is alittle longer and beefier than the stock cobb air filter.

[CorkSport]

How is the Cobb Airbox mounted? Is the Cobb SRI bracket reused or are there new mounting points?

The airbox uses the stock Cobb bracket still.

[CorkSport]

Will the box fit the larger Amsoil dry flow filter some of us are using with the COBB intake? (uhm)
Part number for the filter is EaAU4560 and the dimensions can be found here: http://www.amsoil.com/StoreFront/eaau.aspx
Pics of the filter installed, etc can be found here:
http://www.msprotege.com/forum/showthread.php?t=123695563&page=2

The larger air filter should fit.

[CorkSport]

Will this also fit the CP-E Nano? Just curious.


No idea and we do not have plans to try right now.

[dkswim]

looks good cant wait to see data. out of curiousity where is the air inlet? my guess bottom going to where cai take in air.

[SPEEDYHANS]

to bad u cant use thiswith the coeksport fmic

[gtlaw]

what does it sound like?

[HOBDisease]

Looks good, can you do some data logging and compare the IATs before and after? Thanks in advance.

[aaronc7]

will definitely get this, cant wait till it comes out. thanks corksport for designing and making this.

[Mid_Life_Crisis]

where is the air inlet?


Ditto. Where does it draw air from? What is the outside source?

[Speed3Rookie]

How about a GB?

[mr_mazda329]

WTG Corksport. This looks promising

[H3br3w_Ham3r]

I hope there is an opening somewhere on that box to let some air in. Any pics of that?

[p5sundevil]

does the air not come from the same place a CAI would go through? EI hole leading to front fender well?

[djza2u1]

still would like to know if it would fit the cobb, (or cpe) FMIC. I would be a interested in a GB too!

[Bravnik]

I wonder if it can be used with FMIC whos pipes go down that side. Like my ATP FMIC. I would love to get one but would hate for it not to fit :(

[714ms3]

Any numbers yet? Also, any idea when it will be available? Thanks.

[PCspeed3]

lookin' good :)

[Mid_Life_Crisis]

For the umpteenth time, where does it get its outside air from? More pics please.

[derspi]

For the umpteenth time, where does it get its outside air from? More pics please.

It doesn't draw air from anywhere - it really is what they say it is, a simple box.

[HOBDisease]

I just want some before and after IAT numbers dammit lol

[Crackattak]

Will this also fit the CP-E Nano? Just curious.

+1

If we can make it work, I'll buy one.

[john blutarski]

+1

If we can make it work, I'll buy one.

+2

My Nano needs some box

[hnda etr]

'scribin' for updates...

[dizzin9]

To all the fellas out there with ladies to impress, it's easy to do just follow these steps:

1. Cut a hole in a box
2. Put your SRI in that box
3. Make her open the box

And that's the way you do it, it's my SRI in a box!

[H3br3w_Ham3r]

To all the fellas out there with ladies to impress, it's easy to do just follow these steps:

1. Cut a hole in a box
2. Put your SRI in that box
3. Make her open the box

And that's the way you do it, it's my SRI in a box!

omg perfect!

[nbk6kp10]

To all the fellas out there with ladies to impress, it's easy to do just follow these steps:

1. Cut a hole in a box
2. Put your SRI in that box
3. Make her open the box

And that's the way you do it, it's my SRI in a box!

I like that idea...haha...But really, do you guys think the Cobb airbox will give any extra HP?? I think once the air goes into the turbo will get hot anyway, that's what the intercooler is for right? (boom01)

[MSMS3]

I like that idea...haha...But really, do you guys think the Cobb airbox will give any extra HP?? I think once the air goes into the turbo will get hot anyway, that's what the intercooler is for right? (boom01)

Wrong. Intercooler is no substitute for a poorly designed airbox and filter. On the intake, the issue is more one of cubic feet per minute flow rate, and somewhat less one of temperature. The stock intake is very restrictive and does not permit a flow rate anywhere close to the ability of the MAF and ECU to tune for intake charge and add fuel for the extra air that can enter the engine through a properly designed intake.

That's why good cold air intakes or short ram intakes can show 20 whp gains over the stock air box.

The intercooler is designed to reduce the temperature of the compressed air after it leaves the compressor side of the turbo. The warmer the air that enters the compressor, the hotter it will be when it comes out. So, that's why, at least in theory, a ture cold air intake can produce a bit more power over the short ram design under some conditions.

So, for the Cobb box to get the attention of those looking for serious power gains, it will have to be able to flow like a good CAI or SRI. There still appears to be little to no data about how air enters the box, and what the CFM maximum will be for the air entering the box. If there is, perhaps someone can post it.

[djza2u1]

any update on this. When is it going to be forsale, does it work with Cobb FMIC?. UPDATE PLEASE!

[CorkSport]

Friday, Friday, Friday!

I finally get to give people temp results!

-Derrick

[djza2u1]

Corksport told me that this cold air box for the cobb SRI will be out this friday.

[Speed3Rookie]

Corksport told me that this cold air box for the cobb SRI will be out this friday.

thanks for the update....

[H3br3w_Ham3r]

Corksport told me that this cold air box for the cobb SRI will be out this friday.

Will it be made by Cobb for a cobb SRI or by corksport for the corksport SRI?

[Mid_Life_Crisis]

For the eleventy bazillionth time, can we have more pics so we can see where the air inlet is?

[Stoßtrupp]

It looks like a steaming pile and pretty much useless, likely better off keeping the filter uncovered. Heat soak is only a real issue with stopped and when ambient temps are really high. Once the car is moving air flows fairly decently in the engine bay where the sri is located. Just get a dash hawk and monitor IAT/AAT and BATs and you'll see where I'm coming from. If you’re hell bent on combating high intake temps a FMIC is the only real way to go for significant gains and or meth/ water injection.

[MSMS3]

For the eleventy bazillionth time, can we have more pics so we can see where the air inlet is?

+1000. We would need to know not only where the hole is in that box, but somthing about it's size, so we can calculate CFM flow rate. And if the box comes with a filter from the factory, flow capacity of the filter would need to be known.

[djza2u1]

Friday, Friday, Friday!

I finally get to give people temp results!

-Derrick

its saturday and still dont see it??????

[hugador]

It looks like a steaming pile and pretty much useless, likely better off keeping the filter uncovered. Heat soak is only a real issue with stopped and when ambient temps are really high. Once the car is moving air flows fairly decently in the engine bay where the sri is located. Just get a dash hawk and monitor IAT/AAT and BATs and you'll see where I'm coming from. If you?re hell bent on combating high intake temps a FMIC is the only real way to go for significant gains and or meth/ water injection.

True. DH (IAT) shows the engine bay gets hotter than ambient temperature by 4 to 6 °F when car is moving. So I am considering a FMIC as a power mod. With the TMIC absence and not being there to discharge heat for the SRI (as been said by PG folks), i'm interested to know if this box can separate heat between SRI and engine. And if this air box can be modified and use on other SRI brands other than COBB.

[Mid_Life_Crisis]

I want to see pictures of it broken down to the component pieces. Some of us might be willing to chance being able to modify either it or our intakes to get it to work, but not if we have no idea how the whole thing looks and goes together.

[jengajoe]

There is a half decent pic on Corksport's website of the box for their SRI. You can see where it gets its air from. Hopefully Corksport's COBB box will fit for us guys using the larger Amsoil dry filter. Here is a link to the picture:
http://www.corksport.com/corksport-power-series-cold-air-box-for-the-corksport-sri-system.html

Corksport, my credit card is waiting...

[djza2u1]

Came out already. I cannot wait to get mine. Still want to know if it will work with my cobb FMIC

http://www.corksport.com/corksport-cobb-airbox.html

[zx2man]

Thank you for the update djza2u1...Looks decent and it will prabaly keep some engine heat from the filter. Regarding actrual performance&numbers is another story. I have the ams filter on my sf intake..and from the pics looks like you guys should be fine :)

[CorkSport]

We have posted up the temperature information for the testing as well.

Link for the CorkSport air induction box testing (http://www.corksport.com/blog/cold-air-induction-box/)

-Derrick

[CorkSport]

Thank you for the update djza2u1...Looks decent and it will prabaly keep some engine heat from the filter. Regarding actrual performance&numbers is another story. I have the ams filter on my sf intake..and from the pics looks like you guys should be fine :)


Fitting the larger filters with no problem. The intake is located in the same spot in the engine bay with relation to the other parts.

-Derrick

[zx2man]

Good job Corksport for a good product and support for the Mazdaspeed community. It looks like all the information is sound,and the only thing possibly missing is a before and after dyno. :)

[djza2u1]

Fitting the larger filters with no problem. The intake is located in the same spot in the engine bay with relation to the other parts.

-Derrick

What about the cobb FMIC. Will it fit with the placment of the BPV? That is the only reason why i am waiting to purchase.

[SPEEDYHANS]

im guessing this wont work with ur FMIC

[hnda etr]

We have posted up the temperature information for the testing as well.

Link for the CorkSport air induction box testing (http://www.corksport.com/blog/cold-air-induction-box/)

-Derrick

Already ordered mine... When's it gonna ship, Derrick?

Order under name of Roy...

[CorkSport]

It shipped out to you yesterday.

Thanks
Derrick

[hnda etr]

It shipped out to you yesterday.

Thanks
Derrick

Sweet!

[Mid_Life_Crisis]

Sweet!

Great. When you get it, post some better pics for the rest of us.

[CorkSport]

Great. When you get it, post some better pics for the rest of us.


I can get you pictures. What would you like to see?

-Derrick

[Mid_Life_Crisis]

I can get you pictures. What would you like to see?

-Derrick

I want to see one disassembled to its component pieces, with each identified.
There are any number of us that would consider buying one and modifying it for whatever intake we have if we could see the pieces and judge if it might be possible.

[SubieKiller3]

so did anyone get one of these yet?

[Stoßtrupp]

I can't imagine 2-4degrees having a notable effect on performance, maybe ½ hp LOL!
Not worth the money/ hassle. It would be more of a "feel good" mod than anything but I can think of a ton of other shit worse to spend 50 bucks on or whatever it cost lol.

DYNO numbers aren't going to prove anything; the real world environment can't be adequately simulated with a fan blowing on the car. I believe the strongest fans out there just blow enough air to stimulate ~30mph at most (weak sauce)

Monitor ambient / intake and boosted air temps with an SRI and you’ll see that intake temperatures (once moving) go down within + 2-4 degrees of ambient rapidly.

Better yet, find someone with a MS3/ CAI and race (Legally) and then switch cars and try again. What you’ll find is that there’s absolutely no +1 for either car, both perform identically with every thing else being equal. Been there done that.

[chubbs]

i think its worth it. a lot of thought and research went into it. should be good. i have absolutely no data to prove this... but i like corksport:)

[mckraut]

Do we know if this changes the sound of the Cobb SRI at all? I'm getting a bit tired of the sucking sound it makes and would like to quiet this a little bit.

[hnda etr]

shipping shows mine delivered today.. YAY!

[hnda etr]

Installed mine tonight... took about 30 minutes using flashlight and security light on house lol... Seems to be made out of some type of plexiglass, or as CS says, "high temperature resistant fiber reinforced plastic". Great fit. Only suggestion to CS is to use lock washers on the 6 hex bolts holding the lid on, instead of just flat washers.

[hnda etr]

More...

[hnda etr]

Pic 2 is hard to see, but beneath the lamp plug is probably where most of the cool air will come from... looks like it's between the fender liner and bumper cover...

[hnda etr]

Instructions were kind of ok... left out the page about drilling a hole to use the nylon push screw if i wanted to attach the lid to the car frame... I didn't do that part though.. it's plenty secure as it is...

Also, don't forget to reattach the MAF sensor, like I did, <-- Fail... lol...

[mckraut]

Great pics man, let us know how it sounds vs. without the airbox.

[zx2man]

I would love to see a dyno..and also the feedback from people who are using this setup. I honestly dont think your gain anything that your gonna feel,BUT I do commend Corksport for a job well done and least thier trying to make a coldbox for us ms3 guys,Its more than alot of companies are doing..so props there..and atleast it cant hurt..your talking cooler air temps..even by a small margine..any little bit helps. Now is it worth MY money, well thats the million dollar question lol. I kinda like opening my hood and seeing my sexy amsoil air filter on my cobb intake.(popcorn)

[GoFast]

I'm just throwing this out there...

How many people that are all excited about this have jumped into one of the SRI vs CAI debates saying how the CAI is not any better than a SRI?

So is it[airbox] worth it the money....I don't think so.

[Mid_Life_Crisis]

Thank you for the pics.
So it appears that the air source is the vents in the high pressure area of the inner fenderwell. Much like the CAI, but with a bit of a shield around the filter. I like the looks, which I suspect will be the primary gain from this if used as is.
I personally have other things to purchase first (both for the car and in other areas) so for now I will not be indulging myself with this piece, but I have ideas for which this could be very useful down the road. I just hope it is still available when I`m ready. I picture a completely heat tape wrapped intake (this isn`t about looks for me) with this thing ducted to the outside via large diameter insulated tubing. No place for underhood heat to penetrate the system. I`m not convinced that the so called CAIs sold right now are different enough from an SRI to have much of an effect. A sealed, insulated system might be enough to make a real difference.

[hnda etr]

Great pics man, let us know how it sounds vs. without the airbox.

Thanks! The sound is still there... you can definitely still hear the hissing sound of the SRI when you're on the gas.

At light throttle, the sound is muted and when I'm cruising on the freeway, I don't hear the hissing sound (although now I can't remember if there was a hissing sound at freeway cruising before lol)

[hnda etr]

I would love to see a dyno..and also the feedback from people who are using this setup. I honestly dont think your gain anything that your gonna feel,BUT I do commend Corksport for a job well done and least thier trying to make a coldbox for us ms3 guys,Its more than alot of companies are doing..so props there..and atleast it cant hurt..your talking cooler air temps..even by a small margine..any little bit helps. Now is it worth MY money, well thats the million dollar question lol. I kinda like opening my hood and seeing my sexy amsoil air filter on my cobb intake.(popcorn)

I don't feel anything on the butt dyno... I do believe that I will now be getting cooler air - from that section between the fender liner and the front bumper, and that's worth it just for the possible reduction in KR.

[hnda etr]

I'm just throwing this out there...

How many people that are all excited about this have jumped into one of the SRI vs CAI debates saying how the CAI is not any better than a SRI?

So is it[airbox] worth it the money....I don't think so.

I thought it has long been established that CAI result in higher HP (1-3) at the loss of low end torque? Dyno proven...

[hnda etr]

Thank you for the pics.
So it appears that the air source is the vents in the high pressure area of the inner fenderwell. Much like the CAI, but with a bit of a shield around the filter. I like the looks, which I suspect will be the primary gain from this if used as is.
I personally have other things to purchase first (both for the car and in other areas) so for now I will not be indulging myself with this piece, but I have ideas for which this could be very useful down the road. I just hope it is still available when I`m ready. I picture a completely heat tape wrapped intake (this isn`t about looks for me) with this thing ducted to the outside via large diameter insulated tubing. No place for underhood heat to penetrate the system. I`m not convinced that the so called CAIs sold right now are different enough from an SRI to have much of an effect. A sealed, insulated system might be enough to make a real difference.

I'm thinking a vented hood which would allow hot engine compartment air to be sucked out via the high pressure air flowing over the hood would really help the effectiveness of the CAB...

[hnda etr]

And I'm calling dibs on the phrase:

"CS CAB4CobbSRI" (corksport cold air box for cobb short ram intake)

[GoFast]

I thought it has long been established that CAI result in higher HP (1-3) at the loss of low end torque? Dyno proven...

My house is infested with 100,000 roaches and yours has 100,001....does it matter? lol

[hnda etr]

My house is infested with 100,000 roaches and yours has 100,001....does it matter? lol

Roaches < Horses

[jengajoe]

My Amsoil EaAU4560 filter does not fit in the airbox, it's just too big. (sad1)

Edit: This filter fits inside the box, but the lid won't sit properly to bolt it on.

[mckraut]

My Amsoil EaAU4560 filter does not fit in the airbox, it's just too big. (sad1)

Well crap, I hope my Fujita dryflow fits.

[jengajoe]

Well crap, I hope my Fujita dryflow fits.

Ya, it sucks as I'm using the Amsoil filter in the airbox, but without the lid. I'll probably end up MacGyvering the box with some weatherstripping to seal it against the hood, kind of like the K&N Typhoon setup.

[zx2man]

MCGRUBER!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Hes using some ductape and hes trying to be cool...Hes got a drug prablem, but his mazdaspeed rocks MCGRUBER!!!!!!!!!!!!

[jengajoe]

Holy shit that was funny! (usa)

[hnda etr]

Observations today on 20 mile commute to work:

Speed = 70-80 mph

Ambient air temp, according to in car sensor = 80-82*

Intake air temp, according to AccessPORT = 80-86*

I kept comparing the AP temps against the car temp, and saw anywhere between 0 and 3 degree difference in temps. On average, the IAT was 1-2 degrees warmer than ambient.

IIRC, difference in IAT before the CS CAB averaged around 5 degrees...

Looks like the CAB is working....

[MSMS3]

Great job monitoring the temps. Could you do the same thing in some commuter, stop and go slow traffic and let us know if this addresses any of the issues regarding climbing engine compartment temps when stopped or in slow traffic?

That's been my only SRI reservation, but I don't have the right equipment to do this type of monitoring accurately.

[mckraut]

Observations today on 20 mile commute to work:

Speed = 70-80 mph

Ambient air temp, according to in car sensor = 80-82*

Intake air temp, according to AccessPORT = 80-86*

I kept comparing the AP temps against the car temp, and saw anywhere between 0 and 3 degree difference in temps. On average, the IAT was 1-2 degrees warmer than ambient.

IIRC, difference in IAT before the CS CAB averaged around 5 degrees...

Looks like the CAB is working....

What I really want to see is the difference in outside vs intake air temp after you've run the car and then parked it. That's where the difference really occurs.

Edit: I did some data logging of my own on the way home using the DashHawk. The pictures speak for themselves. (Cobb SRI with Fujita dryflow filter)

15 minutes into driving (that is actually 78 MPH)
http://photos-g.ak.fbcdn.net/hphotos-ak-snc1/hs237.snc1/8435_131826475255_751045255_2370086_7226482_n.jpg


25 minutes after I started the car, 1 minute idling in the driveway at home
http://photos-h.ak.fbcdn.net/hphotos-ak-snc1/hs237.snc1/8435_131826660255_751045255_2370087_6922145_n.jpg

[mckraut]

*bump*

We demand MOAR data! :)

[pwrful4]

CS should use two test vehicles at the same time and make a graph showing IAT over time, both parked and driving.

[GoFast]

CS should use two test vehicles at the same time and make a graph showing IAT over time, both parked and driving.


id like to see 3 at the same time. sri w/o box, sri with box, and a cai

[jengajoe]

Hey mckraut, your Fujita filter fits ok with the lid on? I might have to pick one up then.

[mckraut]

Hey mckraut, your Fujita filter fits ok with the lid on? I might have to pick one up then.

No, I do NOT have the airbox yet. I was just showing what temps look like on the road and at idle with no airbox at all. I want to see what temps do at idle with the airbox on.

[mckraut]

hnda etr, can we get some more data? Please & Thank You

[MSMS3]

Here's what happens to underhood temps when the car sits at idle for 5 minutes from a cold start. The temp gauge has two probes. One is sitting under the hood on the rubber mount that formerly held the stock air box, the mount about 3-4 inches away from the MAF sensor. The other sensor is in the gauge and is on the floor next to the left front tire a few inches away from the CAI intake. 32 degree difference in five minutes and climbing. Hopefully the box might slow that down some.

[hnda etr]

hnda etr, can we get some more data? Please & Thank You

I don't do a lot of stop and go traffic driving, but i'll see what i can do...

[mckraut]

I don't do a lot of stop and go traffic driving, but i'll see what i can do...

I'm just looking for 10 or more minutes of driving, followed by 1-2 minutes of idling. Take outside and intake air temps then please. See my pictures above for a Cobb SRI w/o airbox.

Thank you!

[mckraut]

*bump*

Any updates hnda_etr?

[hnda etr]

*bump*

Any updates hnda_etr?

Well, let me see here... I haven't really paid too much attention after installing it, other than my first report...

In the mornings, with AAT's around 76, IAT's are around 4-6 degrees higher.

In the afternoons, with AAT's around 90+, the IAT's are around 7-9 degrees higher. I'm wondering if the heat soak from sitting in the sun all day causes more heat radiation into the CAB.

Sitting Idling - I've seen IAT's 20+ degrees higher than AAT.

Stop and go, city driving, IAT's around 15 degrees higher than AAT.

My conclusion is that the CAB works best at highway speeds and is not as effective at low speed situations because it doesn't offer a complete seal to a cold air source (fenderwell).

Still, it looks cool (wiggle)

[mckraut]

Well, let me see here... I haven't really paid too much attention after installing it, other than my first report...

In the mornings, with AAT's around 76, IAT's are around 4-6 degrees higher.

In the afternoons, with AAT's around 90+, the IAT's are around 7-9 degrees higher. I'm wondering if the heat soak from sitting in the sun all day causes more heat radiation into the CAB.

Sitting Idling - I've seen IAT's 20+ degrees higher than AAT.

Stop and go, city driving, IAT's around 15 degrees higher than AAT.

My conclusion is that the CAB works best at highway speeds and is not as effective at low speed situations because it doesn't offer a complete seal to a cold air source (fenderwell).

Still, it looks cool (wiggle)

So in conclusion, it looks cool but doesn't help really at all. Based on the data I took, we're getting basically the same findings. Thank you for the continued reports!