Power Upgrades for a 3.7 - JeepForum.com
View Poll Results: What performance Part did you install
Cold air intake 0 0%
Exhaust 1 100.00%
Turbo/Supercharger 0 0%
Voters: 1. You may not vote on this poll

LinkBack Thread Tools
post #1 of 5 Old 08-29-2013, 09:20 PM Thread Starter
Registered User
2002 KJ Liberty 
Join Date: Aug 2013
Posts: 38
Power Upgrades for a 3.7

Is there any upgrades i can do to increase power in my 3.7 L, i would like some more boost in the engine and i would like to make it more peppy. any ideas?

"Jeep is America's only real sports car." -Enzo Ferrari

2002 Liberty Limited 3.7
Jgrana is offline  
Sponsored Links
post #2 of 5 Old 08-29-2013, 09:56 PM
Registered User
2002 KJ Liberty 
Join Date: Dec 2009
Location: Colorado
Posts: 8,393
None of the above....................

Re-gear to 4.10's.

'02 Liberty sitting on 35" tires,HP44,RockJock60,and AtlasII t-case
tjkj2002 is offline  
post #3 of 5 Old 08-29-2013, 10:15 PM
Registered User
2005 KJ Liberty 
Join Date: Jul 2011
Location: Castle Pines
Posts: 3,296
I'd have to vote for none of the above. My power upgrades were new plugs, a recent oil change, and an induction service a couple of months ago. Oops I forgot, I checked my tire pressures. Those things will help restore power you likely have lost over time. Those who think they are hurting on power need only come up here at 6000 feet of elevation to see what you're really missing.
streetglideok is offline  
post #4 of 5 Old 08-29-2013, 10:47 PM
Registered User
2003 KJ Liberty 
Join Date: Feb 2012
Location: Attleboro
Posts: 158
Push the pedal harder
kjrenegade03 is offline  
post #5 of 5 Old 08-30-2013, 07:18 AM
Registered User
2004 KJ Liberty 
Join Date: Aug 2008
Location: Central OH/ Kilimanjaro,Tanzania
Posts: 5,954
Yes CAI huge waste of $$$$$$$$$$
Muffler does nothing but make more good noises
The last there are none available so forget that
like tjkj stated -regear

04 KJ JBA 4 IN COILOVER, 32s 4.10s
03 KJ JBA 2.5 T.C. LIFT, 31s 4.10s
05 KJ
tommudd is offline  


Quick Reply

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Posting Rules  
You may post new threads
You may 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 On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome