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1987-2016 Wrangler Jammock Black 2.0 Jeep Hammock (YJ, TJ Rancho rockGEAR promotion gear from January 1-February 29,Zone Offroad Body and Suspension Lift Kits, Brackets, Disc

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

Unread 08-29-2013, 10:20 PM   #1
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   Reply With Quote Quick reply to this message
Unread 08-29-2013, 10:56 PM   #2
Registered User
2002 KJ Liberty 
Join Date: Dec 2009
Location: Colorado
Posts: 8,323
None of the above....................

Re-gear to 4.10's.
'02 Liberty sitting on 35" tires,HP44,RockJock60,and AtlasII t-case
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Unread 08-29-2013, 11:15 PM   #3
Registered User
2005 KJ Liberty 
Join Date: Jul 2011
Location: Castle Pines, Colorado
Posts: 2,947
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.
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Unread 08-29-2013, 11:47 PM   #4
Registered User
2003 KJ Liberty 
Join Date: Feb 2012
Location: Attleboro, MA
Posts: 158
Push the pedal harder
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Unread 08-30-2013, 08:18 AM   #5
Registered User
2004 KJ Liberty 
Join Date: Aug 2008
Location: Central OH/ Moshi Tanzania, Ohio/Tanzania
Posts: 5,397
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 Liberty, Kilimanjaro Edition, Rock Lizard RockRails/Roof Rack/Front-Rear bumper,32 inch Goodyear Duratracs,Moabs,4.10s/ 4.25 inch JBA Coilover lift /other goodies
tommudd is offline   Reply With Quote Quick reply to this message


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