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Old 05-19-2007, 01:12 AM   #1
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Power mods for a 2.4L

What engine mods can I do for my 2.4L. I have a 03 2.4 SE, lifted with 33x12.50 with 4.56 gears and exhaust. Now I'm looking for some power mods like headers, chip, bigger throttle body anything to get my jeep up to speed. I did find a Supercharger but that cost a more than I would like to spend.

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Old 05-19-2007, 01:16 AM   #2
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Didn't like what the 4.56's did for you?

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Old 05-19-2007, 02:05 AM   #3
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They are fine but would like a little more. Sometimes I think I should of gotten 4.88 instead. But thats too late.
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Old 05-19-2007, 02:07 AM   #4
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Yeah, I hear ya. 4.88's would've probably put you where you wanted. Not a whole lot more you can do to the 4 banger to get a ton of power out of it. At that point you might as well put a 4.0 or a V8 in there.
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Old 05-19-2007, 09:45 AM   #5
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yup nothing will really help besides boost or a new engine
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Old 05-19-2007, 11:03 PM   #6
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boost!!! turbo or supercharger it That would be sweet
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Old 05-20-2007, 01:58 AM   #7
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Ever hear of "Scrappy the wonder Jeep"?
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Old 05-20-2007, 02:09 AM   #8
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here in germany there is a compressor kit for the 2.4L available.
with this thing the 2.4L power will increase to 255 HP and the torque to 305 ftlbs.

but it´s very expensive. including intallation it costs about 9500 $.

i would insall a 4.0L instead. or better. sell your TJ and buy one with a 4.0L inside.
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Old 05-21-2007, 12:09 AM   #9
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Well it looks like I will have to save for that avenger supercharger? Anybody here running that system.
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Old 05-21-2007, 06:48 PM   #10
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The best thing that you could do is a V8 swap... the supercharger is just a "bling factor" in my eyes.
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Old 05-21-2007, 07:58 PM   #11
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put in a six cylinder man get that out and put in a 4.2 ho
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Old 05-21-2007, 08:09 PM   #12
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Quote:
Originally Posted by penguin_in_a_cj View Post
put in a six cylinder man get that out and put in a 4.2 ho
If you did a I6 do a 4.0 not 4.2. Doesn't the 4.0 have more power than a 4.2?
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Old 05-21-2007, 08:16 PM   #13
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Quote:
Originally Posted by 4.0l sahara View Post
If you did a I6 do a 4.0 not 4.2. Doesn't the 4.0 have more power than a 4.2?
The 1991+ 4.0L MPI produces ~180HP
The pre1991 4.2L 2bbl produces ~112HP
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Old 05-21-2007, 08:17 PM   #14
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thats what i thought.
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4.0/np231/ax15/d30/d35
flowmaster40,hpd30 with aussie locker,currie upper joints,4.88's, lca skids,chromo shafts,vanco brakes,d35 with super 35 and arb locker,re 4.5" springs,currie arms,re front uppers,Re shocks in back,walkerevens shocks up front, Re track bars with currie jj joints,anti rock,ss brake lines,re rear sway bar links,jks 1.25" bl and mml,bfg 35x12.5 km2's,craiger soft 8's,ome steering stabilizer,currie hd steering,rockmen front bumper,emp tank skid,lots more too.
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Old 05-19-2011, 05:14 PM   #15
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alright question on this... I have the 2.4 and am =thinking about doing the 4.0 swap down the road a little ways. its a 05 with a 6 speed... I read somewhere that the 4.0 and 2.4 use the same tranny. Is that right? or am i goign to need to swap the tranny out too when I go to do it...
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Old 05-19-2011, 07:26 PM   #16
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The v8 is money better spent! Having owned a jeep with all three engines.

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