Charcoal intake filter removal testing & RESULTS

[Ogt]

It’s not really that.. it’s getting the majority of the benefits an aftermarket intake would cost for nothing but maybe 5 minutes of your time. Since you refuse to see what is in the video.

5-10whp throughout rpm without filter (some spots it’s 0 gain because I know you will use that to be dismissive)
0-1whp gain without filter and k&n dropin

Unlike the first gens.. the stock filter flows quite well and there’s no benefit of an aftermarket one aside from potential sound.

[Tcoat]

Originally Posted by Ogt

It’s not really that.. it’s getting the majority of the benefits an aftermarket intake would cost for nothing but maybe 5 minutes of your time. Since you refuse to see what is in the video.

5-10whp throughout rpm without filter
0-1whp gain without filter and k&n dropin

Unlike the first gens.. the stock filter flows quite well and there’s no benefit of an aftermarket one aside from potential sound.

Not sure who you are talking to?

There was little benefit to the first gen as well. It also was a very effective system right from stock. The new ones are not much different.

Getting 5-10 on a dyno is well within the variance of each pull so not really showing anything anyway. Expecting a 10HP increase from removing just one part of a filter is just not realistic.

The 2016 facelift cars got a 5HP increase from improved intake, exhaust, tuning and other tweaks so how is it reasonable to state double that increase from removing a thing carbon overlay?

[Stonehorsw]

Originally Posted by Tcoat

Not sure who you are talking to?

There was little benefit to the first gen as well. It also was a very effective system right from stock. The new ones are not much different.

Getting 5-10 on a dyno is well within the variance of each pull so not really showing anything anyway. Expecting a 10HP increase from removing just one part of a filter is just not realistic.

The 2016 facelift cars got a 5HP increase from improved intake, exhaust, tuning and other tweaks so how is it reasonable to state double that increase from removing a thing carbon overlay?

Tcoat, evidence on gen2 shows otherwise. This was one the discussions when the specs started showing up back in 2020 (IIRC). Japan had 232hp and US 228hp. Most of that was initially thought to be related to tune, but after some comparison, the charcoal filter was identified as main difference.

Engineering explained did a similar testing on other platforms and got similar results. I saw also this being done on BMWs with similar results.

The change will not be effective IF the intake is not a bottleneck, but data shows that this is not the case for those (my best guess, OEM develops the system without the filter as globally I don’t think is needed, and then slap the filter because CAFE)

[Tcoat]

Originally Posted by Stonehorsw

Tcoat, evidence on gen2 shows otherwise. This was one the discussions when the specs started showing up back in 2020 (IIRC). Japan had 232hp and US 228hp. Most of that was initially thought to be related to tune, but after some comparison, the charcoal filter was identified as main difference.

Engineering explained did a similar testing on other platforms and got similar results. I saw also this being done on BMWs with similar results.

The change will not be effective IF the intake is not a bottleneck, but data shows that this is not the case for those (my best guess, OEM develops the system without the filter as globally I don’t think is needed, and then slap the filter because CAFE)

OK so that is 4HP not 10.
Not disputing it will make some difference just the degree of difference.
The JDM is probably tuned slightly differently as well so how much of that 4HP is tune and how much is actual mechanical filtration.
Wishful thinking is wishful.

[Stonehorsw]

Originally Posted by Tcoat

OK so that is 4HP not 10.
Not disputing it will make some difference just the degree of difference.
The JDM is probably tuned slightly differently as well so how much of that 4HP is tune and how much is actual mechanical filtration.
Wishful thinking is wishful.

Got your point. Yes, for the 10hp on thumbnail they had to search on the middle of the curve and got a peak hp difference, which may be skewing the data.
My opinion that this was done more as a clickbait.

In the video, he admits that the real number should be 4hp.

[CincyJohn]

Originally Posted by Tcoat

OK so that is 4HP not 10.
Not disputing it will make some difference just the degree of difference.
The JDM is probably tuned slightly differently as well so how much of that 4HP is tune and how much is actual mechanical filtration.
Wishful thinking is wishful.

I don't really care to get in a pissing contest about 4 v 10hp and where on the torque curve you have to go to get it. I believe the video as well as other tests and the fact that these charcoal filters only exist in jurisdictions where the manufacturer thinks they might be required is all the evidence you need that they restrict flow (and flow that the current engine tuning can take advantage of). Heck, you don't even have to do that!! Look at the stupid thing for gosh sake.

The important thing that I take away from this video, is that despite how much folks love their oiled K&N filters and "cold air" intakes (which actually take in hotter air than the original intake), if you want to do something to your intake/filter set-up, taking out the useless charcoal diaper is definitely the first (and probably the only) thing you should do.

[Stonehorsw]

Originally Posted by CincyJohn

I don't really care to get in a pissing contest about 4 v 10hp and where on the torque curve you have to go to get it. I believe the video as well as other tests and the fact that these charcoal filters only exist in jurisdictions where the manufacturer thinks they might be required is all the evidence you need that they restrict flow (and flow that the current engine tuning can take advantage of). Heck, you don't even have to do that!! Look at the stupid thing for gosh sake.

The important thing that I take away from this video, is that despite how much folks love their oiled K&N filters and "cold air" intakes (which actually take in hotter air than the original intake), if you want to do something to your intake/filter set-up, taking out the useless charcoal diaper is definitely the first (and probably the only) thing you should do.

You are barking to the wrong tree

[CincyJohn]

Originally Posted by Stonehorsw

You are barking to the wrong tree

Was agreeing with you, responding to Tcoat. Yes - should have quoted him, not you. Fixed now...

[Liquidsnake]

I hate California. Lived here all my life it’s a shit hole. And everyone who runs it is a grifter.

[Tcoat]

Originally Posted by CincyJohn

I don't really care to get in a pissing contest about 4 v 10hp and where on the torque curve you have to go to get it. I believe the video as well as other tests and the fact that these charcoal filters only exist in jurisdictions where the manufacturer thinks they might be required is all the evidence you need that they restrict flow (and flow that the current engine tuning can take advantage of). Heck, you don't even have to do that!! Look at the stupid thing for gosh sake.

The important thing that I take away from this video, is that despite how much folks love their oiled K&N filters and "cold air" intakes (which actually take in hotter air than the original intake), if you want to do something to your intake/filter set-up, taking out the useless charcoal diaper is definitely the first (and probably the only) thing you should do.

Agree with all that. In fact I even said to just cut the filter out and use the frame as a spacer.
The thing is that making outrageous claims gives people expectations that just are not going to be met. All in all four does not equal ten.
Everybody can get as defensive as they want I am not insulting the fucking thing just trying to clarify a very simple point.

[Tcoat]

Originally Posted by Stonehorsw

Got your point. Yes, for the 10hp on thumbnail they had to search on the middle of the curve and got a peak hp difference, which may be skewing the data.
My opinion that this was done more as a clickbait.

In the video, he admits that the real number should be 4hp.

That is my battle!

[joemysterio]

Originally Posted by Liquidsnake

I hate California. Lived here all my life it’s a shit hole. And everyone who runs it is a grifter.

And yet I'd rather be in California than anywhere else. But let's not get into that other than it's too strict on emissions and it's a pain in the ass.

[Tcoat]

Originally Posted by joemysterio

And yet I'd rather be in California than anywhere else. But let's not get into that other than it's too strict on emissions and it's a pain in the ass.

And everybody may as well get used to the fact that the rest of the world (including the other States) are all headed down the same road. California is just leading the charge.

[Lantanafrs2]

Originally Posted by Tcoat

And everybody may as well get used to the fact that the rest of the world (including the other States) are all headed down the same road. California is just leading the charge.

Some states don't have as much industrial pollution so vehicle emissions aren't as critical.