According to the K&N website the 77 series kit will give about 10 hp and the FIPK kit (the non shinny one) will give 15 hp?
How can this be? Aren't these two kits basically the same thing?
Are these numbers correct?
How can that little shiny tube sacrifice 5hp?

 

got a brand new one in the box for sale if you want it - 66 series

 

I think it has to do with heat.........aluminum conducts heat better than plastic.....so the air in the metal one is going into the engine warmer.......at least thats what i've been told and thats what makes sence to me......i wish that was garbage because i personaly like the looks of the 77 series more....and it'll probably sound nicer

 

it is garbage, i remember a while back on the ranger boards, someone linked to a study done on intake tube material, and the bottom line was that the air did not stay in the tube long enough to be affected by the temperature of the material the tube was made of. If you want chrome, go for it!!

As far as the difference in numbers i can only assume that the dyno charts were taken either on a different truck or a different time, its very rare that you get consistant dyno results, so i would imagine the performance is about the same

 

I like my 77 Series. Great sound at WOT. Wouldn't change it for nothing!

 

No offense, but I call BS on that, with a ranger it wouldnt really matter, 4 cyl and small V6's dont gain much unless its forced induction or electronically tuned.... now with the mustang I had, and others I have worked on... it made a difference. We did dyno's with the metal and the plastics and ended up seeing better hp gains and cooler temps. That was with N/A and Blown applications. This is why the blowers you buy now dont have the metal tubing doing into the blower. With our trucks being mostly V8's and having to have more TQ, it can make a nice difference.
Rob

 

I have no idea how K&N gets a 10hp difference between the two kits. Yes, aluminum is going to "hold" more heat than the plastic FIPK, but while you're moving fresh air is rushing under the hood helping to cool everything down. Since the tube never really touches the throttle body, there would be no head radiating up from the motor.

On the Mustang site "The Corral" this topic has been beat well beyond death. Look at it this way: Vortech sends out their basic kits with plastic discharge tubes, and their higher end kits with aluminum discharge tubes. The first two mods everyone does to their basic kits are install an aluminum powerpipe (inlet to blower) and an aluminum discharge tube. Based on the "heat theory" this should kill a ton of power with the blower. When the air goes thru the blower it's basically superheated. So if the heat theory was correct then why wouldn't people want to stay with the plasic tube so it's not heated further by radiant heat from the engine?

... food for thought.

 

HardcoreHehaw,

I had the 77 series on my 04 FX4 it was great and looked awsome if you are looking for *big* gains from an intake look somewhere else than K&N thats my 2 cents

 

i dont take any offense to this, i posted without the hard data to back it up, ill have to see if i can find the research again and ill post it.

 

If you are looking for "big" gains look somewhere other than any intake. It's just part of the equation. Supercharge, gears, MAF, TB, headers, exhaust, then dyno tune. IMHO, #1 mod = ecm program like superchips xcalibrator, then (2) gears (3) intake w/ exhaust. Best bang for the $1500 or less is the tuner and intake + exhaust. Also, you hear much about this intake or that. Personally, I like K&N, have used one on my Jeep with good reults, but have a Rousch with my s/c that I will just keep. I think most intakes will help some with the other mods, as long as they don't throw codes.

 

quoted from autoanything

if you think about it, the tube would be isolated by direct engine heat conduction from the silicone or rubber connector used on it, it would only be affected by ambient heat from the engine, and even then, the air coming in through the intake would cool the intake tube more than the ambient heat would allow the heat soak to heat the fast moving air inside.

i know i still have not shown any REAL proof, i am still looking, again just food for thought

 

I've already got an edge programmer.
And I'm not interested in gears... at all.
I've got 3:73's and i'm lifted on 35's. I like the way it responds and I don't want any worse gas mileage.

Ohh and is there a better Intake kit that offers more than 15hp for $200?
I know Airaid and Volant are more expensive.
Airaid gave 12hp gains and Volant says 10-15. I couldn't find any numbers for S&B.
I'm pretty sure Intake is Intake.. Airaid and K&N look Identical so I'm not sure how there could be much difference between the two. But for $90 less I'll take K&N over Airaid.
Either way 4-5hp doesn't mean crap so I'll probably go the cheapest route.

 

on 35s youll get BETTER mileage in town, it will be so much easier for your engine to move those big tires with some 4.56s

 

As sent to me via email by original poster of this thread.
http://cgi.ebay.com/ebaymotors/K-N-A...spagenameZWDVW
I must have better ebay skills...
$195.95 shipped.
__________________________________________________ _________
If you're looking for a 4.6L intake that's wonderful. However, that was not listed anywhere in your original post. I own an '05 FX-4 with the 5.4L -- the fact that I stated I was getting rid of my intake to have the Roush blower installed should have been a dead give away. So maybe you can use your skills to check on the 5.4L cost... you'll find they're going for, on Ebay, exactly what I stated: $240 plus $20 shipping.

Among other things, the 5.4L intake has to make a 90* bend to meet the throttle body.

As I said in my email: Good luck on which ever kit you decide to go with!

 

I already contacted the seller. The auction states 2004 F-150.
He said he has the 77 series available for the same price.
So my ebay skills are fine and I can't believe you would try to flame me by posting my e-mail like that at the same time you <snip>

Also my driving consists of an even mix of city and highway... my gears are fine.