Go Back   Ford Truck Enthusiasts Forums > Misc. > Air Intakes, Air Filters & Ram Air
Sign in using an external account
Register Forgot Password?

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!

LinkBack Thread Tools Search this Thread
  #1 (permalink)  
Old 04-19-2011, 09:04 AM
Greenford100 Greenford100 is offline
New User
Join Date: Mar 2011
Posts: 11
Greenford100 is starting off with a positive reputation.
Air Intake 390

Do you guys know of any air intakes that I might be able to put in my Ford FE 390 engine that would help gain horsepower? I have got plenty of room to do it, just need your guys advice on what to get. I know K&N is one of the best products out there, but is there something else you would recommend?
Reply With Quote
  #2 (permalink)  
Old 04-19-2011, 01:59 PM
Beechkid Beechkid is offline
Join Date: Aug 2002
Location: Southern California
Posts: 3,143
Beechkid is a name known to allBeechkid is a name known to allBeechkid is a name known to allBeechkid is a name known to allBeechkid is a name known to allBeechkid is a name known to all
If you do an online search for “air filter test” there is a lot of very good information.
If you look at the flow data, WIX HP filters flow 98+% of K&N and have a much smoother flow post filter plus excellent filtering, for a fraction of the price!

IMHO, in my younger days when we were playing with those series of engines, we would build an air ram type intake into the air cleaner- using a couple of 3" diameter hoses.

For calculating the minimumsize air filter, here is the formula:

Minimum Air Filter
Surface Area
A= (CID) (RPM) divided by 25,500
H= A + .75 divided by (D) (3.14)

Key: A= Filtering Area D= Estimated Height H= Height
Note: For Off Road Use Multiply Height 1.5 to 2
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
Old 04-19-2011, 01:59 PM

Go Back   Ford Truck Enthusiasts Forums > Misc. > Air Intakes, Air Filters & Ram Air

352, 390, air, cover, engines, filter, ford, horsepower, incrase, install, intake, pickup, ram, road, systems, truck

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 02:26 AM.

Powered by vBulletin® Version 3.7.5
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