i have k&n's fipk and let me first off say this: none of these intakes are much greater than the other. No one here will get 10 ponies to the ground with any of these mods, all the companies have seriously blown the hp gains up. probably using huge fans in a meat locker during the dyno.

so take if from a guy who has more mods than the intake, it will be a mod that you will think is great for a week, and then when you get used to the slightly better throttle response, you will do what i did, look for more mods.

i am to the point im saving 1600 for a gear swap!

semper..
quagmeyer

 

meant to reply to Fejes1's post on intakes, not create my own...my bad

semper

 

People with no sound theroy and knowledge will just play follow the leader with whatever they hear.
The air intake difference is just like the difference in driving a dirty truck and a clean one;;;;;;;;;;; it's all in the head.
There are few people that can tell the difference in 10 hp increase on a 5000 pound truck. Certainly that power increase if there, is not there tooling around at 2000 rpm either.
The PCM is constantly changing it's own program by adaptive learning.
It's at these times it can be felt by how the truck runs and some will try to attribute it to an air intake change or exhaust.
Again, the air intake to the engine is conrolled by the throttle plate opening, not by any air intake mods.
The 4.6L engine is only 281 cu/in in displacement. The air intake size is more than adiquite for the engine size.
If a different intake system is all shiney and make you feel good, that another story. Keep people in bussiness taking your money.
Ever see how many different ones there are and selling these things? There money in it!

 

Using an aftermarket air intake won't usually make a huge diference by itself, but when you put headers a good exhaust and such into the mix that's when the air intake will come into play. This is from personal experience.

 

I swear my truck runs better when it's clean, and nothing you say will change my mind!!!

 

I agree with Ford truck. I made my own air inlet kit. Cost me about $50.00. Idon't think I ever got 2 hp out of it. But along with the other mods I put just over 200 hp to the wheels with my 4.6. I haven't gotten around to testing the 5.4 yet. I am fortunate that I can feel a 10 hp increase in a 5000# vehicle. My dynobutt is protected under patent #123..........

JMC

 

A bunch of years ago I did a test with a buddy of mine for Grassroots Motorsports. We used his stock Mustang and my heavily modified Mustang and tested several cold air systems on a dyno. We had a huge fan blowing on the front of the cars. The average result was his stock motor gained 0 - 1 rwhp, my modified motor lost 3 - 4 rwhp.

 

HI!... One thing a lot of people need to realize is that 99% of after market company's rate THEIR H.P/TQ increases at the "FLYWHEEL" NOT at the REAR WHEELS. A gain at the flywheels is ALWAYS a higher # than at the rear wheels.

 

Mike Troyer is the only reputable person that I've EVER seen post his numbers here, since I joined 5 years ago. You could search his bazillion posts on this topic or examine this quote from him today: "Now with regards to a K&N FIPK kit installed on say, a 1999-2003 5.4 2-valve F-150, it gains about 14-15 HP SAE Net at the flywheel (averaging 8-11 Hp rear wheel, depending on the dyno & test method) - where an Air Force One will gain right at 17.9 HP at the flywheel, just to give you a rough comparison. In the 4.6's, it's about a 10-12 HP gain flywheel. So the intake is not going to do as much for performance as tuning will, but a good intake kit is the #2 best bang-for-the-buck mod, generally speaking - depending on what the upshift points are in an automatic, sometimes our underdrive pulley set will actually be the #2 best bang-for-the-buck mod, but I prefer to do the intake kit before the underdrives, myself."

 

Troyer seems to be the man!

 

I have to say I can feel a difference with my modded cold air kit after like 30 mph, but then again that air is being crammed into the intake by then. And it only gets better as the speed increases.


Sled...

 

I know this is off topic butt...

Sleddogg,
That is a beautiful engine compartment.

 

Thanks, it amazing what a little simple green can do..

Sled...

 

You hit the nail on the head with that statement! I have had to tolerate this for over 2 years in the supercharger section!

 

When people shell out hundreds of dollars for a mod you are bound to ruffle feathers when you tell them that they are not making the claimed increase in power. Yes some people will follow hype and blindly jump on the band wagon thinking that their 25¢ mod will give them 100 hp. The smart ones will sit back and listen to, or read in this case, what others have done and judge by the results. One thing that I know for sure is that if you have an hour glass shape in the inlet piping and you get rif of it you will increase the power. I don't know how much power you will gain but I know you will gain. If you take a stock truck and open it up you will gain. If you take a modded truck with the correct tune on it for a restricted inlet and open it up you most likely will loose power. If you don't then your tuner needs to freshen up his skills. You would have to correct the tune for the increase in air flow to make any gains. The compairison of stock to modded is misleading.

So, you can read all you want and can beleive all or none but if you don't have at least a working knowledge of the internal combustion engine and most important the theory behind it you are doomed to follow the crowd and hope you pick the right mod.

JMC