Airbox undertary
08-09-2012, 01:25 AM
#1
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Airbox undertary
I just installed an AEM cold air on my car. The instructions didnt say anything about removing the undertray. Is there any reason to keep it in there? If I take it out, won't I get better air circulation in the engine bay?
08-09-2012, 01:37 AM
#5
Ummmmmmmm guys, actually it is practically useless unless you have a factory airbox. It is mostly there to keep heat from the radiator from soaking the bottom of the airbox.
Removing it will improve flow efficiency of the radiator by a small margin. So just remove the damn tray.
Removing it will improve flow efficiency of the radiator by a small margin. So just remove the damn tray.
08-09-2012, 01:38 AM
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Honestly, I didn't know. That's why I asked. If I had to guess, though, I would've said it was supporting the airbox since it was (basically) just sitting on top of it.
Besides, not everything that goes on a car has a performance based function.
Besides, not everything that goes on a car has a performance based function.
08-09-2012, 01:42 AM
#7
Ummmmmmmm guys, actually it is practically useless unless you have a factory airbox. It is mostly there to keep heat from the radiator from soaking the bottom of the airbox.
Removing it will improve flow efficiency of the radiator by a small margin. So just remove the damn tray.
Removing it will improve flow efficiency of the radiator by a small margin. So just remove the damn tray.
IMHO, buy the discontinued BHR metal tray to make it look pretty, or weld up your own for a fraction of the price.
08-09-2012, 01:45 AM
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What if I get my hands on a thermal wrap? Wouldn't that solve the issue of increased intake temp?
I should have read the OP's post and title more carefully. Freaken job, it distracts me from the forum 
08-09-2012, 01:48 AM
#10
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do you want **** coming off the road and smashing into your engine bay?
Mazda didnt put the tray on for a joke and a laugh
edit: lol airbox tray not car undertray lol sorry op i feel bad now
Mazda didnt put the tray on for a joke and a laugh
edit: lol airbox tray not car undertray lol sorry op i feel bad now
08-09-2012, 07:50 AM
#13
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The airbox tray is there to insulate the OEM airbox from the radiator heat. If you take it off, be sure to wrap the AEM intake with thermal insulation.
IATs will still rise when idling but will go down immediately and fall quickly at near ambient when you start moving (you can, in addition, fabricate a heat shield that covers the bottom of the intake tube - post pictures).
IATs will still rise when idling but will go down immediately and fall quickly at near ambient when you start moving (you can, in addition, fabricate a heat shield that covers the bottom of the intake tube - post pictures).
Last edited by etzilon; 08-09-2012 at 11:34 PM.
08-10-2012, 10:46 AM
#16
I have an AEM and have the airbox tray removed. I also wrapped the intake in DEI Gold Reflect heat shielding. Intake temps are 6-8 degrees above ambient when moving and the car is completely warmed up. That was before I cut louvers into the hood though, once I'm finished with that we'll see if it gets any better now that all that heat has somewhere to go.
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