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Unread 02-02-2013, 10:23 AM   #1
OliverTwist
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1992 YJ Wrangler 
 
Join Date: Nov 2012
Location: Clarkston, Washington
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2.5L more horse power?

Hello, I have a 92 YJ and was doing some reading an saw that if I add a a throttle body and spacer off a cherokee and and a cold air intake I could boost up the HP a tad. So what would I look for in the parts so I know they would work

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Unread 02-02-2013, 05:36 PM   #2
25greenwrangler
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1997 TJ Wrangler 
 
Join Date: Aug 2011
Location: Hull, Iowa
Posts: 154
All cold air filters do is let in more dirt into the engine, suck in the oil from the filter and lighten your wallet
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Unread 02-03-2013, 10:14 AM   #3
jokerchief462
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1989 YJ Wrangler 
 
Join Date: Nov 2010
Location: Sin City, Nevada
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Best performance increase for the mighty 2.5L is to regear. I know it is not what you want to hear. However there are several mods that will give you a little. 4.0 Throttle body upgrade, electric fan are a couple I have considered but not yet attempted.
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Unread 02-03-2013, 07:37 PM   #4
leftlanetruckin
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1998 XJ Cherokee 
 
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Location: missouri via blackpool,lancs.
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I tried most of them on my old '91 YJ.
By far the biggest gain was going to 4.88's. The TB spacer, electric fan, etc were a waste of time to be honest.
With 35's and 4.88's, you still tried anything at all to avoid the interstate, or any other 70mph road. It was a dog, and drank fuel seeing as you have to keep your foot buried to make it move.
best thing I did was swap a 4.3 and 700R4 into the rig. I actually enjoyed driving it then!

Martin
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1998 XJ on 37's.JK Rubi axles with chromo shafts and ctm's, 4:1 transfer case, etc etc etc.The Cherylkee....
2003 Range Rover HSE, 4.4 Quad Cam.
1998 Range Rover 4.6 HSE
2000 4.7 4WD WJ with a rebuilt motor.
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http://www.jeepforum.com/forum/f12/swap-offically-underway-324622/

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