TheLion
Well-Known Member
- Thread starter
- #1
I've seen some people report issues with water intrusion into the charge system while driving in the rain after opening up their front grille. I don't think any that I saw actually were using the Velossatech BIG MOUTH ram air duct.
I am using the BIG MOUTH with a GT grille I painstakingly de-blanked every single honey comb from (I mean EVERY ONE, even the little corner ones). Took me about 6 hours and two stabbed fingers to complete, but it looks like a factory piece even up close. For reference I used a rotary tool and routing bit to get out the majority of it, but an exacto knife to hone the edges down for a smooth factory molded appearance.
At any rate, it was raining out fairly heavily this morning on my commute to work, about 23 miles, half highway, half city. There was a fairly significant amount of water vaporization on the highway due to all the standing water, traffic and constant rain (still raining out pretty good even as I type this).
I did not have a single issue this morning on my way to work with the stang. I was very curious if the OE paper filter was soaked or damp so I pulled it out in the parking lot before going in (in the rain)...to my amazement it was bone dry!
It would appear that now having the high pressure zone in the air box itself causes the water to rapidly condense at highway speeds (where you get all the vaporization in heavy rain) as it compresses and stalls in the high pressure zone before entering the intake. There was certainly plenty of water droplets in the bottom of the air box, but no pooling as any significant amount drained out the factory drain hole.
So now that I have confidence water is not an issue, the only issue I've encountered with the BIG MOUTH is debris with enough mass to have gotten sucked up into the Green Filter when I was using that (aka sand sized particles, a lot of them and bugs). Basically any particles that can fit through the grille that have some mass.
I also noticed the OE paper filter was not holding any large debris, or any debris I could see. It looked clean as a whistle (I've had it in for about the last 1,000 miles now). There were debris starting to adhere to the green filter after just the first 1k miles as I inspected it after the first 1k as well to see how quickly it was getting dirty (a suspicion I had after installing the BIG MOUTH).
If your running a street car and want to maintain a clean intake system without constant maintenance the BIG MOUTH with the OE paper filter or an AEM Dry Flow is an excellent combination. You could also use the Ford Performance CAI with the big mouth.
Yes the Ford Performance CAI has an aspiration cutout on the drivers side where the fender well is, however at speed there is still a very high volume of cool air going into the air box, so the BIG MOUTH is still beneficial since the Ford Performance CAI is a sealed air box (seals against hood) and relys heavily upon the intake tract for it's air supply. The aspiration cutout on the drivers side is for low speed flow. You also get the benefit of higher flow rate of the conical paper filter over the OE panel filter and it's increased dust capacity as well. I may upgrade the intake next year if people have positive reports on it's overall performance.
I am using the BIG MOUTH with a GT grille I painstakingly de-blanked every single honey comb from (I mean EVERY ONE, even the little corner ones). Took me about 6 hours and two stabbed fingers to complete, but it looks like a factory piece even up close. For reference I used a rotary tool and routing bit to get out the majority of it, but an exacto knife to hone the edges down for a smooth factory molded appearance.
At any rate, it was raining out fairly heavily this morning on my commute to work, about 23 miles, half highway, half city. There was a fairly significant amount of water vaporization on the highway due to all the standing water, traffic and constant rain (still raining out pretty good even as I type this).
I did not have a single issue this morning on my way to work with the stang. I was very curious if the OE paper filter was soaked or damp so I pulled it out in the parking lot before going in (in the rain)...to my amazement it was bone dry!
It would appear that now having the high pressure zone in the air box itself causes the water to rapidly condense at highway speeds (where you get all the vaporization in heavy rain) as it compresses and stalls in the high pressure zone before entering the intake. There was certainly plenty of water droplets in the bottom of the air box, but no pooling as any significant amount drained out the factory drain hole.
So now that I have confidence water is not an issue, the only issue I've encountered with the BIG MOUTH is debris with enough mass to have gotten sucked up into the Green Filter when I was using that (aka sand sized particles, a lot of them and bugs). Basically any particles that can fit through the grille that have some mass.
I also noticed the OE paper filter was not holding any large debris, or any debris I could see. It looked clean as a whistle (I've had it in for about the last 1,000 miles now). There were debris starting to adhere to the green filter after just the first 1k miles as I inspected it after the first 1k as well to see how quickly it was getting dirty (a suspicion I had after installing the BIG MOUTH).
If your running a street car and want to maintain a clean intake system without constant maintenance the BIG MOUTH with the OE paper filter or an AEM Dry Flow is an excellent combination. You could also use the Ford Performance CAI with the big mouth.
Yes the Ford Performance CAI has an aspiration cutout on the drivers side where the fender well is, however at speed there is still a very high volume of cool air going into the air box, so the BIG MOUTH is still beneficial since the Ford Performance CAI is a sealed air box (seals against hood) and relys heavily upon the intake tract for it's air supply. The aspiration cutout on the drivers side is for low speed flow. You also get the benefit of higher flow rate of the conical paper filter over the OE panel filter and it's increased dust capacity as well. I may upgrade the intake next year if people have positive reports on it's overall performance.
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