Go Back   Ford Truck Enthusiasts Forums > Newer Light Duty Trucks > 2007+ Expedition & Navigator
Sign in using an external account
Register Forgot Password?


2007+ Expedition & Navigator 2007, 2008, 2009 and 2010 Ford Expedition and Lincoln Navigator

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 04-10-2009, 10:53 AM
tiger13e tiger13e is offline
New User
 
Join Date: Mar 2008
Posts: 12
tiger13e is starting off with a positive reputation.
hp and mpg increase with aftermarket bolt ons

I was thinking of putting a set of headers and k&n air filter kit and new coils on the 07 EL. Just curious of any mileage improvement if anybody has added these things to theirs.
Reply With Quote
  #2  
Old 04-10-2009, 11:36 AM
Beechkid Beechkid is offline
Moderator
 
Join Date: Aug 2002
Location: Southern California
Posts: 3,177
Beechkid is a splendid one to beholdBeechkid is a splendid one to beholdBeechkid is a splendid one to beholdBeechkid is a splendid one to beholdBeechkid is a splendid one to beholdBeechkid is a splendid one to behold
Headers: With replacement of the oem muffler, you'll be looking at about 15 hp increase and about 1-2 mpg.

Coil packs: OEM equipment is very good and most aftermarket units provide no better performance.

K&N Kit: IMHO, waste of $. While elimination of the oem plastic tube inlet does provide additional air flow/performance, combined with a good oem replacement filter will give you a couple of hp and another 1-2 mpg. if you go online and check for air filter flow test you will find this In summary, wix, ac delco etc actually flow as well as any other hipo filter for a oem engine and the post filter flow characteristics are actually better than K&N.):

RESULTS

JUMP TO:
(14x3" Results Chart)
(14x4" Results Chart)

The established performance brand of choice has quickly become K&N. They claim a substantial flow advantage over paper. Our results show this to be fairly accurate. The only filter to outperform the cotton gauze filters are the Nascar qualifying filters by WIX Racing. Unfortunately, these Wix glass fiber filters are very expensive and not washable. However we tested it to obtain the highest possible flow value in each category. As the results show, the K&N 14x3" and 14x4" are down only 25 cfm, flowing at 97% of the Nascar filters. Nearly even are the AIS (Air Inlet Systems) prototype versions of the same material.

We don't see the paper filters show up until about 91% of max flow. The Fram 14x3" flows a bit under 800 cfm. Interestingly, the AC Delco 14x4" (paper) flows nearly the same as a 14x3" cotton gauze. Right on its tail are the two foam filters at a hair over 90%. Now, this is where it gets interesting. Paper filters range from 91% to 69% in airflow capacity. The Moroso paper filter we paid $15.95 for did pretty good, as far as a paper filter is concerned, came in second with about 90%. Then there are the middle of the road paper filters, all pretty close, can't really choose a winner there. Wix gets to open and close the list. These last models are designed for extreme off road service with superior filtering efficiency, and not intended for normal service.

Who claims what? When K&N tests at 0.3" H2O, using a standard, cylinder head air flow conversion formula and extrapolates to 1.5", they may not be making a correct assumption. We are dealing with a restrictive medium, not a free flowing cylinder head port. They claim 50% greater flow with a K&N over paper. Our results show this claim to be quite a bit off! Most paper filters rated between 80 % and 90% of the cotton gauze types. Amsoil claims to marginally outflow K&N but this could not be shown in our test. Both Accell and Amsoil foam filters flowed about as a good as a premium paper filter, around 90%, indicating that the foam filters are getting better.

Also note the swirl coefficient. The more turbulent it is at the entry to the carb, the more venturi buffeting occurs, which can disturb atomization of the fuel. The higher the number, the greater the turbulence. This factor should be considered. It seems that the shorter filters create more. Another aspect is using a filter that is big enough for the engine power levels. The flow numbers listed are close to the established CFM requirement for engines. It is easy to see that some combinations should be avoided. A slow speed engine may not suffer so much with a restrictive filter but it could cost as much as 20 hp on a high RPM race motor. The average 300-hp street motor will stand to gain around 10 hp from the best to the worst.

In conclusion, the cotton gauze filters are the best flowing filters when new. Being reusable, and with proper maintenance, it may be the last filter your hot rod needs. Paper, if you are willing to replace it often, will flow very close to cotton gauze. The foam filters are also reusable and probably more resistant to washing damage. Foam will The foam is down 10% on airflow capacity, which puts it about even with a quality paper filter. Priced at about 2/3 for the same size in cotton gauze, it's a viable alternative. At and average of $8 for a paper filter, $35 for a foam, and $50 for a cotton filter, we are talking about potentially a 10-hp difference on a V8. From the chart, you can tell if the filter you are using is big enough. With this information on hand, you are better equipped to decide which filter is best for you. F/M

Air Filter Flow Test
14" x 3" Round Flow # @ 5" H2O % Flow Rating Swirl
Brand Part # Size Material
Wix 46945R 14x3 Glass 860 CFM 100% 119
K&N E-1650 14x3 Cotton 835 CFM 97.1% 126
AIS Cotton AF3C 14x3 Cotton 830 CFM 96.5% 121
AIS Cotton AF3C-2 14x3 Cotton/Synt 830 CFM 96.5% 130
FRAM FRM4 14x3 Paper 791 CFM 91.9% 128
Moroso 97080 14x3 Paper 776 CFM 90.2% 131
Amsoil 52 14x3 Foam 774 CFM 90% 140
Purolator APF74 14x3 Paper 736 CFM 85.6% 146
AIS AF3 14x3 Paper 724 CFM 84.1% 148
Wix 42095 14x3 Paper 721 CFM 83.8% 149
Wix 42095R 14x3 Paper 712 CFM 82.8% 143
Fram CA136 14x3 Paper 710 CFM 82.6% 142
Edelbrock 1217 14x3 Paper 701 CFM 81.5% 154
NAPA/CompPol 22095 14x3 Paper 693 CFM 80.6% 155
Wix 42095 14x3 Paper 674 CFM 78.4% 163
Wix 46947R 14x3 Paper 595 CFM 69.2% 175

Air Filter Flow Test
14" x 4" Round Flow # @ 5" H2O % Flow Rating Swirl
Brand Part # Size Material
Wix 46944R 14x4 Glass 907 CFM 100% 116
AIS Cotton AF4C 14x4 Cotton 883 CFM 97.4% 116
K&N E-1690 14x4 Cotton 882 CFM 97.2% 121
K&N 61-4020 14x4 Cotton 880 CFM 97% 120
AC Delco 697C 14x4 Paper 825 CFM 91% 132
Accel (dry) 70004 14x4 Foam 820 CFM 90.4% 120
Amsoil 25 14x4 Foam 820 CFM 90.4% 131
Motorcraft FA705 14x4 Paper 814 CFM 89.7% 131
Wix 42096 14x4 Paper 813 CFM 89.6% 132
AIS AF4 14x4 Paper 803 CFM 86.5% 138
Fram CA3492 14x4 Paper 796 CFM 87.8% 126
MotoMaster 2330090 14x4 Paper 788 CFM 86.9% 135
Wix 42096R 14x4 Paper 786 CFM 86.7% 136
Wix 46946R 14x4 Paper 683 CFM 75.3% 155
__________________
Member: Never trust a person over 40 who drives a Chevy club
Flatheads ain't so bad!
Certified backyard mechanic I & II
Reply With Quote
  #3  
Old 04-10-2009, 12:39 PM
RRranch RRranch is offline
Posting Guru
 
Join Date: Nov 2007
Location: West Texas
Posts: 2,158
RRranch is gaining momentum as a positive member of FTE.RRranch is gaining momentum as a positive member of FTE.
If you use a K&N in my area you will be rebuilding your engine a lot sooner than normal. They don't seal worth a crap and don't keep the dust out here.

Headers are just a pain I think. I can't even imagine having to tighten the bolts all the time on a newer one like yours. Not much room to work under there.
Reply With Quote
  #4  
Old 04-11-2009, 08:33 AM
chuck s chuck s is offline
Elder User
 
Join Date: Jan 2008
Location: Broadview Hts, Ohio
Posts: 512
chuck s is starting off with a positive reputation.
What muffler(s) are going to give me 2 more miles per gallon? Just curious.

-- Chuck
Reply With Quote
  #5  
Old 04-11-2009, 09:44 AM
heymrdj's Avatar
heymrdj heymrdj is online now
Elder User
 
Join Date: Aug 2007
Location: Churubusco, IN
Posts: 809
heymrdj is gaining momentum as a positive member of FTE.
heymrdjlive
I put Flowmaster 50 Delta Flow SUV muffler no mine (single in single out as 04 Expeditions have no room to have a second pipe routed). It increased my highway mileage by .5-1.5mpg, almost 2mpg at high speeds like 80mph. City driving, because the larger pipe causes a slight loss of low end torque while increasing high end horsepower, lowered by like .3-.5mpg.
__________________
2004 Expedition
Eddie Baur 4x2
5.4L 2v Triton V8
NEW: 2 3/4" pipe with Flowmaster Super 50 Delta Flow Muffler and 3.5"x18" echo tip WOOT
Upcoming:
Dual 16" Troyer performance fans
WAAG grill guard
Scanguage II
all corners air suspension
Reply With Quote
  #6  
Old 04-12-2009, 08:27 AM
chuck s chuck s is offline
Elder User
 
Join Date: Jan 2008
Location: Broadview Hts, Ohio
Posts: 512
chuck s is starting off with a positive reputation.
Thanks.

-- Chuck
Reply With Quote
  #7  
Old 06-13-2009, 01:45 PM
jbracefan1977 jbracefan1977 is offline
Freshman User
 
Join Date: Mar 2009
Posts: 33
jbracefan1977 is starting off with a positive reputation.
I have the same K&N also and love it, I could not find a good deal on ebay so I found a discount coupon here: K&N E-1690, or you can try one of the vendors on the forum here, you can usually find a good deal that way as well. This was very easy to install and I love it. good luck
Reply With Quote
  #8  
Old 06-13-2009, 04:47 PM
Tylus's Avatar
Tylus Tylus is offline
MMNC (SS)
 
Join Date: Mar 2004
Location: Pearl Harbor
Posts: 10,530
Tylus has a superb reputationTylus has a superb reputationTylus has a superb reputationTylus has a superb reputationTylus has a superb reputationTylus has a superb reputationTylus has a superb reputationTylus has a superb reputationTylus has a superb reputationTylus has a superb reputationTylus has a superb reputation
if you want more HP, get a good tuner

if you want more MPG's...drive very conservatively.
Quote:
Originally Posted by Beechkid View Post
Headers: With replacement of the oem muffler, you'll be looking at about 15 hp increase and about 1-2 mpg.
huh?

not unless you custom tune the PCM. The O2 sensors are going to be in a different location...so you have to adjust the pulse timer so the PCM gets a correct reading



even then...15 ponies on a Modular motor?
more like 5 HP...unless you get that custom tuning...even then...maybe 10 HP.
__________________
2002 Excursion XLT w/ V-10 <---Build thread
2015 Chevrolet Tahoe - I've owned 4 brand new Fords since 2006. Notice that I bought a Chevy this time. That should tell you something
Reply With Quote
  #9  
Old 06-15-2009, 11:00 AM
berry1234's Avatar
berry1234 berry1234 is offline
Postmaster
 
Join Date: Mar 2001
Posts: 4,008
berry1234 is gaining momentum as a positive member of FTE.
I highly doubt a simple muffler swap would give you 2mpg gains. That is 10% better gas mileage.
__________________
1978 F250 Lariat 4x2
2008 Expedition Eddie Bauer 4x2


Reply With Quote
  #10  
Old 06-15-2009, 04:32 PM
Beechkid Beechkid is offline
Moderator
 
Join Date: Aug 2002
Location: Southern California
Posts: 3,177
Beechkid is a splendid one to beholdBeechkid is a splendid one to beholdBeechkid is a splendid one to beholdBeechkid is a splendid one to beholdBeechkid is a splendid one to beholdBeechkid is a splendid one to behold
Reply

Quote:
Originally Posted by tylus View Post
if you want more HP, get a good tuner

if you want more MPG's...drive very conservatively.

huh?

not unless you custom tune the PCM. The O2 sensors are going to be in a different location...so you have to adjust the pulse timer so the PCM gets a correct reading



even then...15 ponies on a Modular motor?
more like 5 HP...unless you get that custom tuning...even then...maybe 10 HP.

Should have said, muffler, tune, & high flow filter
__________________
Member: Never trust a person over 40 who drives a Chevy club
Flatheads ain't so bad!
Certified backyard mechanic I & II
Reply With Quote
  #11  
Old 06-15-2009, 04:59 PM
Tylus's Avatar
Tylus Tylus is offline
MMNC (SS)
 
Join Date: Mar 2004
Location: Pearl Harbor
Posts: 10,530
Tylus has a superb reputationTylus has a superb reputationTylus has a superb reputationTylus has a superb reputationTylus has a superb reputationTylus has a superb reputationTylus has a superb reputationTylus has a superb reputationTylus has a superb reputationTylus has a superb reputationTylus has a superb reputation
with exhaust + intake + tunes you can get about 20-25 more HP from the 300 HP 5.4 3v...safely. If you want more gains, they are there, but the A/F gets kinda scary


longtubes are such a huge PITA, that unless you are running a wild built motor or Forced Induction, the gains are essentially worthless versus the money spent ($700+ for shorties...about $1,200 for lontubes)
__________________
2002 Excursion XLT w/ V-10 <---Build thread
2015 Chevrolet Tahoe - I've owned 4 brand new Fords since 2006. Notice that I bought a Chevy this time. That should tell you something
Reply With Quote
  #12  
Old 06-15-2009, 08:14 PM
Beechkid Beechkid is offline
Moderator
 
Join Date: Aug 2002
Location: Southern California
Posts: 3,177
Beechkid is a splendid one to beholdBeechkid is a splendid one to beholdBeechkid is a splendid one to beholdBeechkid is a splendid one to beholdBeechkid is a splendid one to beholdBeechkid is a splendid one to behold
Reply

Quote:
Originally Posted by berry1234 View Post
I highly doubt a simple muffler swap would give you 2mpg gains. That is 10% better gas mileage.
I gained 1 mpg with the muffler and about another 1 with the tunes (both city/hwy), the bed cover will say just made the mpg gain more "solid", but my ram air (self built) cai system actually did the most in city mpg...my current mpg totals are...

City (regular traffic): 16

City (very heavy Traffic): 10-12

Hwy: 20-21 with peaks (ya know, no traffic, wind at your back, etc) up to 23 mpg


Also I am running a Hooker Aerochamber (outflows Flowmaster per air bench testing)
MPG is based upon tank fills.
__________________
Member: Never trust a person over 40 who drives a Chevy club
Flatheads ain't so bad!
Certified backyard mechanic I & II
Reply With Quote
  #13  
Old 06-20-2009, 12:05 PM
montecarlo31 montecarlo31 is offline
Elder User
 
Join Date: Sep 2004
Posts: 538
montecarlo31 is starting off with a positive reputation.
While I can't speak for a expedition as the one I drive is bone stock, on every other vehicle I've added a Cat back exhaust to (magnaflows) I've picked up 1 to 1.5 mpg without a tune (f-150 2v, Grand Prix GTP, GTO 6.0L). The Oxygen sensors don't move locations on a cat back system and they will adapt for the increased air flow. I could see 2 mpg if the factory exhaust is restrictive.
Reply With Quote
  #14  
Old 07-07-2009, 09:58 PM
SWV10 SWV10 is offline
Junior User
 
Join Date: Nov 2003
Location: New Mexico
Posts: 97
SWV10 is starting off with a positive reputation.
Cat-backs are the way to go. Better sound over stock, increase HP and better mpg.
I did the cat back on my F150 4x4 5.4L and now I avg 22mpg @ 70mph on the highway, cruse on/with air.
Even hot-rodding through the mountains I can get 18.
__________________
'10 F150 Supercab 5.4L/ 6.5 box/4x4/XLT/3:55's.
Reply With Quote
  #15  
Old 07-10-2009, 09:19 AM
eddiemoney eddiemoney is offline
Senior User
 
Join Date: Jun 2009
Posts: 274
eddiemoney is starting off with a positive reputation.
Anyone have any good videos of catback or custom systems?

I have found 2 videos on youtube, but nothing great.
Reply With Quote
Old 07-10-2009, 09:19 AM
 
 
 
Reply

Go Back   Ford Truck Enthusiasts Forums > Newer Light Duty Trucks > 2007+ Expedition & Navigator

Tags
42096r, bolt, f150, flowmaster, gaines, gas, give, hp, mileage, mpg, muffler, ons, trucks, wix, worse

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump



All times are GMT -5. The time now is 09:19 AM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup