Question about 4.0 Throttle body for 2.5 - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > YJ Jeep Wrangler Forum > YJ Tech Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 05-14-2009, 05:20 PM   #1
Newb
 
Gdkerplunk03's Avatar
 
Join Date: Mar 2009
Location: UK for now. back to cali soon
Posts: 9
Question about 4.0 Throttle body for 2.5

to get right to the point i want more oomf outta my 2.5 YJ (as does everyone else) and have been reading alot about the throttle body swap. my question is, can i put the 4.0 throttle body spacer on my stock throttle body or do i need to install the 4.0 throttle body then put on the spacer. this is all assuming my assumptions on this system is correct. eventually i would like to do both but for now would just like to go the cheaper route. any help is greatly appreciated. Thanks!

Gdkerplunk03 is offline   Quote Quick Reply
Old 05-14-2009, 06:01 PM   #2
Jeeper
 
RednekYJ's Avatar
 
Join Date: Feb 2007
Location: LITH IL
Posts: 1,352
Swap the TB first. You will notice the gain there. IMO the TB spacers are nothing more than expensive paperweights.

RednekYJ is offline   Quote Quick Reply
Old 05-16-2009, 03:17 AM   #3
Newb
 
Gdkerplunk03's Avatar
 
Join Date: Mar 2009
Location: UK for now. back to cali soon
Posts: 9
should i buy an adjustable fuel pressure regulator as well? im really new to this and i dont know how the system works. im a jet mechanic but i dont know a whole lot about cars.
Gdkerplunk03 is offline   Quote Quick Reply
Old 05-16-2009, 07:26 AM   #4
Jeeper
 
scrambler1's Avatar
 
Join Date: Jan 2008
Location: vermont
Posts: 486
Yes tb spacers are a waste of time and money really no gain. The larger TB does make a difference. I Machined out a 4.0 one with a Carbide deburring tool to make it flow even better.
Does not help Fuel mileage though, But you probably knew that.
Electric fan is the best way to free up some power.
__________________
94' wrangler 4 cyl. 5 speed D30/8.8 ARB
82' scrambler 350 TBI/700r4 D30/Currie 9"
07' JK sahara
Whats the deal with the facebook crap?? ->->->->
Grown men should NOT be on Facebook.
scrambler1 is offline   Quote Quick Reply
Old 05-16-2009, 12:58 PM   #5
Pushy, Loudmouthed, and Ballsy
 
Dare2BSquare's Avatar
 
Join Date: Jul 2006
Location: Driving Around Arkansas In My Black XJ
Posts: 6,177
I got a tb and spacer for mine. Put on the throttle body and the spacer is still in the tool box drawer in the garage.
__________________
99 XJ Sport
4.0l
AW4
NP231
d30/C8.25
3" Skyjacker lift
31 x 10.50 General Grabbers


http://i66.photobucket.com/albums/h2...are/TMLogo.gif Are all fishermen liars, or do only liars fish?
Dare2BSquare is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

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.



Thread Tools

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 Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
4.0 Throttle Body On A 2.5 R.P.M. YJ Tech Forum 11 04-28-2014 07:07 PM
Newbie intro & throttle body question JJTF TJ Tech Forum 4 03-25-2009 02:33 PM
Tommy Was A Wise Man!!! Dare2BSquare Off-Topic 26 03-11-2009 10:33 AM
03 se throttle body question? 03 jeep se TJ Tech Forum 3 12-02-2006 11:41 AM



» Featured Product

All times are GMT -5. The time now is 11:47 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC