2.5L more horse power? - JeepForum.com
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > General Technical Discussions > Engines & Drivetrain > 2.5L more horse power?

Rubicon Express Suspensions from CCOR 706-207-4140Smittybilt Hard Tops @ Oconee Off-Road! 706-534-9955XHD Heavy-Duty Hood Latches for JK and TJ available at Oco

Unread 02-02-2013, 10:23 AM   #1
Registered User
1992 YJ Wrangler 
Join Date: Nov 2012
Location: Clarkston, Washington
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   Reply With Quote
Unread 02-02-2013, 05:36 PM   #2
Registered User
1997 TJ Wrangler 
Join Date: Aug 2011
Location: Hull, Iowa
Posts: 153
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   Reply With Quote
Unread 02-03-2013, 10:14 AM   #3
Wild Wheeler
jokerchief462's Avatar
1989 YJ Wrangler 
Join Date: Nov 2010
Location: Sin City, Nevada
Posts: 2,847
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   Reply With Quote
Unread 02-03-2013, 07:37 PM   #4
XJ on 37's
leftlanetruckin's Avatar
1998 XJ Cherokee 
Join Date: Jul 2006
Location: missouri via blackpool,lancs.
Posts: 10,453
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.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.
4.3/700r4/new frame buildup (YJ)....

Years to gain the hands on experience, and offer it freely.
Minutes to gain the knowledge from the internet, and quote it just as freely.
Choose wisely!
leftlanetruckin is offline   Reply With Quote

Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.