2.5L more horse power? - JeepForum.com
LinkBack Thread Tools
post #1 of 4 Old 02-02-2013, 10:23 AM Thread Starter
Registered User
1992 YJ Wrangler 
Join Date: Nov 2012
Location: Clarkston
Posts: 4
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

OliverTwist is offline  
Sponsored Links
post #2 of 4 Old 02-02-2013, 05:36 PM
Registered User
1997 TJ Wrangler 
Join Date: Aug 2011
Location: Hull
Posts: 163
All cold air filters do is let in more dirt into the engine, suck in the oil from the filter and lighten your wallet

why buy when you can build?
25greenwrangler is offline  
post #3 of 4 Old 02-03-2013, 10:14 AM
Registered User
1989 YJ Wrangler 
Join Date: Nov 2010
Location: Sin City
Posts: 2,881
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.

89YJ 2.5L TBI, AX-5, NP231 SYE, Ford 8.8, Yukon Grizzly, Tom Woods Shaft, 33" BFG T/As, 4" lift, Warn VR10000s.

AF Jeep Club Tail #184
jokerchief462 is offline  
post #4 of 4 Old 02-03-2013, 07:37 PM
XJ on 37's
leftlanetruckin's Avatar
1998 XJ Cherokee 
Join Date: Jul 2006
Location: missouri via blackpool,lancs.
Posts: 10,625
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!


1998 XJ on 37's.JK Rubi axles with chromo shafts and ctm's, 4:1 transfer case, etc etc etc.
2003 Range Rover HSE, 4.4 Quad Cam.
1998 Range Rover with a 6.0 LSx
1994 YJ, 4.3/700R4/OME SOA, etc
Western Star 4900EX 4 axle.
4.3/700r4/new frame buildup (YJ)....

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
leftlanetruckin 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