Help on K&N! - Ford Truck Enthusiasts Forums

Michigan Chapter Join Chapter, Leader: Toyman

Help on K&N!

Thread Tools Search this Thread
Old 05-12-2004, 09:58 AM
MichiganHunter MichiganHunter is offline
Junior User
Thread Starter
Join Date: Apr 2004
Posts: 96
MichiganHunter is starting off with a positive reputation.
Question Help on K&N!

I have a 2002 F250 SC shortbed 4x4 that I recently put a 6" BDS Lift and a set of 315's on the truck. I have a 5.4 with 3.73's right now and I am going to upgrade the gears as soon as I can get some answers on gears, I have no idea about how geras are going to change the truck's performance, Just alot of here say.. I have been told that 4.56's will get me some of my gas mileage back because the truck is not working so hard and others are saying it is going to make it worse than it already is, I get about 9-10 after the kit was installed and tires were changed. I hope someone can she d little bit of input on this one for me. And I also have another question about the K&N Fuel Injection Performance Kits, Does anyone ou there have one on there truck, and if so Can they really feel the difference in power? I would hate to fork out the money on this cause they are a little expensive unless they work, Thanks again and i hope someone out there can help me out.
Reply With Quote
Old 05-16-2004, 12:41 PM
RonnieB RonnieB is offline
Junior User
Join Date: May 2003
Posts: 74
RonnieB is starting off with a positive reputation.
I am assuming you have the 265s on now? If so, you added about 3" in diameter to your tires, so translated, that's about 9% torque loss. A set of 4.10s will get you roughly back to factory. 4.56s will allow you to launch, but will cause you higher highway RPMs, which lead you to lower fuel economy, and may cause you to tow at slower speeds since you will now be out of your power band at the same highway speeds. If you're looking for better launches, but want to save some fuel, I think a good compromise would be a set of 4.30's.
Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Performance Air Filter, Which ONE? bikeman25 Explorer, Sport Trac, Mountaineer & Aviator 9 07-16-2005 03:19 AM
How do I know if I have Mass Air Flow Sensor? ssherron 1987 - 1996 F150 & Larger F-Series Trucks 3 12-14-2004 02:31 PM
What else can I do EASILY to get a little more power? 3006ROCKS Ford Inline Six, 200, 250, 4.9L / 300 10 11-17-2002 01:16 PM
Supercharger, K&N Performance Kit, Bucket Seats for '96 2.3L aksniper Ranger & B-Series 1 01-16-2002 04:40 AM
Help! Need a replacement performance air filter. bikeman25 Explorer, Sport Trac, Mountaineer & Aviator 3 01-26-2001 04:09 PM

Go Back   Ford Truck Enthusiasts Forums > >

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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

All times are GMT -5. The time now is 11:08 AM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.