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I have the stock air box in my 98 GT with a K&N filter. Is it worth it to bother removing the air silencer? I know I wont see any significant gains, but any little bit helps. Just have no cash for the CAI.
 

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If yours is as easy to take off as mine was, then yeah its worth it. I'm a newb and it maybe took me 5 or 10 mins. I've noticed more pull it seems...not really more speed, she just seems to wanna move better.


Dave
 

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If you remove it you'll notice a significant increase in throttle response. It probably gains a horse or two as well, but I don't have any evidence of that.

Do it, it's worth it. Sounds better too.
 

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Using the Passport G-Timer for time testing I noticed no performance increase in my GT with the silencer removed.The car ran the same times with or without the silencer in place.So I put it back on.But it did have a nicer sound to the engine with it off.http://www.escortradar.com/gtimer.htm
 

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Think about it..... Ford has gone to all the time and expense of designing, manufacturing and installing that snorkel to make sure the engine gets nice cool air from the fender well instead of that ugly, power robbing hot air from under the hood... Why do you suppose they'd do that when we all know they'd sell their mother for 2 cents?

Hot intake air increases the potental for detonation (detstroys engines) and robs horsepower. I think it's something like 1 hp for every 10 degrees.

Kenne Bell feels so strongly about it that they will void the warranty on their blower if you draw air in from under the hood.

I'd leave it on until you can get a quality CAI that goes into the fenderwell like the "Tunable Induction" www.demolet.com or the Kenne Bell CAI www.kennebell.net
 

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the snorkel does in fact restrict air coming into the engine. it's simple fluid flow. smaller opening, less flow, bigger opening, more flow. the air silencer doesn't come into play until you start upgradining other things such as throttle bodies and plenums. most people have already switched to a CAI by that point anyway.
 

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Jakes said:
Think about it..... Ford has gone to all the time and expense of designing, manufacturing and installing that snorkel to make sure the engine gets nice cool air from the fender well instead of that ugly, power robbing hot air from under the hood... Why do you suppose they'd do that when we all know they'd sell their mother for 2 cents?

Hot intake air increases the potental for detonation (detstroys engines) and robs horsepower. I think it's something like 1 hp for every 10 degrees.

Kenne Bell feels so strongly about it that they will void the warranty on their blower if you draw air in from under the hood.

I'd leave it on until you can get a quality CAI that goes into the fenderwell like the "Tunable Induction" www.demolet.com or the Kenne Bell CAI www.kennebell.net
You don't need to remove the entire sheild, just the rubber bottle-neck that constricts the flow. The sheild still draws in air from the fenderwell and blocks out the engine compartnent heat.. Atleast on my '96.
 
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MAXX RS4 said:
You don't need to remove the entire sheild, just the rubber bottle-neck that constricts the flow. The sheild still draws in air from the fenderwell and blocks out the engine compartnent heat.. Atleast on my '96.

I think its the same for all 96-04 4.6 2vs. My stock 98 was like that. Now i have the FIPK with the heat shield. I still think cool air is coming up from the openings near the fender and still prolly takes in cooler air. Plus the FIPK has a rubber molding around the heat shield so it kinda makes a seal with the hood..somewhat blocking all the engine air out.
 

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Maxx & MBH....

How big a gap is there between the stock air canister and the fender when you remove the snorkle? How much 140*+ air gets sucked into the air filter through that gap?

I have an '02 GT I can tell you that gap was 2"-3" when I removed the "silencer" and plenty of HOT underhood air was being sucked in. I then went to an FIPK and there's no way that "heat shield" sealed off the HOT air as well as a CAI going into the fenderwell, particularly when it's wide open on the bottom and is a hit or miss fit against the hood. The real purpose of the shield is to "shield" the intake from the air blast that would disrupt air flow across the mass air and cause driveability problems. K&N came up with the "heat" story in order to market the FIPK against the fenderwell setups. That's not to say it doesn't block some of the hot air but it doesn't come close to what a fenderwell system will do.

I now run the KB CAI from the mass air into the fender and the tube from the FIPK kit from the mass air to the TB. Oh yeah, I had to get a retune when I switched to the KB CAI setup because of the increased flow of cool air.
 
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