Air filters...

[SaveMelMac]

The AFE intake comes with an enclosed air box and still uses the fresh air scope from the lower portion of the air box.

 

[Ecoboost_xsport]

The AFE intake comes with an enclosed air box and still uses the fresh air scope from the lower portion of the air box.

Yup....no hard data though. Im looking for data.

Anyway, I'm not investing in another intake, it'll be easy enough to close up the AirAid, or just scoop up a K&N drop in for the stock airbox I still have laying around.

I highly doubt if you were to put all these different intakes next to each other, outside of their enclosures (if they have one), and there being much difference in actual performance.

 

[mrhighcaliber]

Yeah, I was at Ford the other day and saw the Roush F150 in the showroom and the CAI is enclosed like that with a cool plexiglass window, haha

I've always felt Roush cai's are the best for that reason. (Orange 2019 roushcharged test mule)

However, with forced induction, the intake charge temps are already well above ambient temps, requiring charge cooling. And extra 5 to 10° of intake temperatures do not translate to 5° to 10° reduction at the IAT2 or intake manifold, especially at higher levels of supercharger/turbo compression (boost) levels. For naturally aspirated operations; higher levels of intake air heat isolation have a much greater translation to power production than

Also factor in all of the under hood intake plumbing and pieces that are being heat soaked constantly by radiant engine heat and radiator discharge air (convection), and you have an additional source of intake air heat.

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[Ecoboost_xsport]

I've always felt Roush cai's are the best for that reason. (Orange 2019 roushcharged test mule)

However, with forced induction, the intake charge temps are already well above ambient temps, requiring charge cooling. And extra 5 to 10° of intake temperatures do not translate to 5° to 10° reduction at the IAT2 or intake manifold, especially at higher levels of supercharger/turbo compression (boost) levels. For naturally aspirated operations; higher levels of intake air heat isolation have a much greater translation to power production than

Also factor in all of the under hood intake plumbing and pieces that are being heat soaked constantly by radiant engine heat and radiator discharge air (convection), and you have an additional source of intake air heat.

Sent from my PH-1 using Tapatalk

Very, very accurate description. I would make one small...additional...point. Although I agree, boosted applications, whether turbo or super, inherently add heat to the system, IATs by themselves aren't necessarily the end goal of an isolated intake system. Along with that lower intake air temp comes better "quality", more dense, oxygen rich air. So if you can lower IATs by that 5 to 10degs, aside from a high relative humidity, you'll get more oxygen into the engine. Yes, forced induction will add heat during the compression process, but you're starting out with better quality air, translating to more power. It's my poor attempt at trying to regurgitate some of what Gale Banks was talking about when referring to Boost Air Density. But after really thinking about it and doing some tabletop exercises, im really starting to warm up to paying more attention to that value instead of simply boost or IATs by themselves.

 

[SM105K]

Very, very accurate description. I would make one small...additional...point. Although I agree, boosted applications, whether turbo or super, inherently add heat to the system, IATs by themselves aren't necessarily the end goal of an isolated intake system. Along with that lower intake air temp comes better "quality", more dense, oxygen rich air. So if you can lower IATs by that 5 to 10degs, aside from a high relative humidity, you'll get more oxygen into the engine. Yes, forced induction will add heat during the compression process, but you're starting out with better quality air, translating to more power. It's my poor attempt at trying to regurgitate some of what Gale Banks was talking about when referring to Boost Air Density. But after really thinking about it and doing some tabletop exercises, im really starting to warm up to paying more attention to that value instead of simply boost or IATs by themselves.

Also mother nature needs to be helpful too.

 

[Ecoboost_xsport]

Also mother nature needs to be helpful too.

Yessir, she has to bless us with a low relative humidity as well as some nice cool ambient air....

 

[Jordan_R]

Be sure to measure wgdc with maintained load. That's the huge thing to me to make the intake tract more efficient and extend the efficiency into the turbos.