Horsepower and torque uprades.. - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ 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 11-29-2012, 11:45 PM   #1
Jeeper
 
Garrowcr223's Avatar
 
Join Date: Nov 2012
Posts: 26
Horsepower and torque uprades..

I've got the 4.0 in my tj, I'm runnin 35's and stock gears so it's obviously a little sluggish. I've been lookin at the cold air intakes and throttle body spacers, exhausts, and all that good stuff. But was just wantin some opinions on all that or what other things I could do. Any opinions or ideas will be much appreciated!!

Garrowcr223 is offline   Quote
Old 11-29-2012, 11:49 PM   #2
Jeeper
 
TJspeed's Avatar
 
Join Date: Feb 2011
Location: New Mexico
Posts: 3,474
Everyone on here will tell you none of those things will work. I'm looking at replacing my "cai" that the previous owner in stalled with the stock air intake.

__________________
2000 solar yellow 4.0 sport 3" BDS, 1.25" JKS body lift, 1" Zone motor lift, JKS quicker disconnects, 33x10.5 BFG KM2 on black american racing wheels. D44 rear.

TJspeed is offline   Quote
Old 11-29-2012, 11:56 PM   #3
Jeeper
 
Garrowcr223's Avatar
 
Join Date: Nov 2012
Posts: 26
Yeah I mean I wast sure how well they would if they did at all. But do you know of anything other than that? Besides Droppin 304 in it or anything?
Garrowcr223 is offline   Quote
Old 11-29-2012, 11:58 PM   #4
Jeeper
 
TJspeed's Avatar
 
Join Date: Feb 2011
Location: New Mexico
Posts: 3,474
Regearing is the best way to gain power.

Someone will chime in and give a more detailed answer.
__________________
2000 solar yellow 4.0 sport 3" BDS, 1.25" JKS body lift, 1" Zone motor lift, JKS quicker disconnects, 33x10.5 BFG KM2 on black american racing wheels. D44 rear.

TJspeed is offline   Quote
Old 11-30-2012, 12:00 AM   #5
Jeeper
 
srad600's Avatar
 
Join Date: Apr 2011
Location: Tabernacle, NJ
Posts: 1,731
Despite the price the best bang for your buck is going to be gearing. There is nothing short of building the motor, or using forced induction that will get back the loss from the added weight and rotational mass. In the car world in always a fan of all the bolt on mods. Not worth the time or money with the jeep tho. The gains are too minimum and some are worse for wheeling.

Good luck.
__________________
The Budget Brawler. AKA Berta
97 sport 4.0 5 spd
6" Long arm 35" MTRs
HP30-Eaton E locker D44-Detroit locker-4.88 Ten Factory Chromo shafts.
KC/Hella, Engo 12k, LED rock lights, "train" horns, Home made-Hand Throttle, OBA, Etc etc.
srad600 is offline   Quote
Old 11-30-2012, 12:00 AM   #6
Jeeper
 
Garrowcr223's Avatar
 
Join Date: Nov 2012
Posts: 26
With the information given what gears would you suggest and about how much would that run me?
Garrowcr223 is offline   Quote
Old 11-30-2012, 12:01 AM   #7
Jeeper
 
TJspeed's Avatar
 
Join Date: Feb 2011
Location: New Mexico
Posts: 3,474
Quote:
Originally Posted by Garrowcr223 View Post
With the information given what gears would you suggest and about how much would that run me?
What Trans do you have
__________________
2000 solar yellow 4.0 sport 3" BDS, 1.25" JKS body lift, 1" Zone motor lift, JKS quicker disconnects, 33x10.5 BFG KM2 on black american racing wheels. D44 rear.

TJspeed is offline   Quote
Old 11-30-2012, 12:18 AM   #8
Jeeper
 
Garrowcr223's Avatar
 
Join Date: Nov 2012
Posts: 26
It's the 32 RH automatic transmission 3speed
Garrowcr223 is offline   Quote
Old 11-30-2012, 07:34 AM   #9
Jeeper
 
Join Date: Aug 2012
Posts: 21
there are things you can do, i have done them, bored out throttle body 64mm, borla header, hi flow cat and muff. went to an electric fan , big diff, my friends stock jeep could not keep up with me, he is now doing the same mods, but i put a 4.7 stroker motor from ATK in it, the jeep flys now, has stock 307 in it an 31s but putting a 8.8 rear end in it next week having it regeared to 355s, let the good times roll, drive it like you stole it......
philk is offline   Quote
Old 11-30-2012, 10:12 AM   #10
Jeeper
 
srad600's Avatar
 
Join Date: Apr 2011
Location: Tabernacle, NJ
Posts: 1,731
Quote:
Originally Posted by philk View Post
there are things you can do, i have done them, bored out throttle body 64mm, borla header, hi flow cat and muff. went to an electric fan , big diff, my friends stock jeep could not keep up with me, he is now doing the same mods, but i put a 4.7 stroker motor from ATK in it, the jeep flys now, has stock 307 in it an 31s but putting a 8.8 rear end in it next week having it regeared to 355s, let the good times roll, drive it like you stole it......
Id be surprised if all that got you 5whp.
__________________
The Budget Brawler. AKA Berta
97 sport 4.0 5 spd
6" Long arm 35" MTRs
HP30-Eaton E locker D44-Detroit locker-4.88 Ten Factory Chromo shafts.
KC/Hella, Engo 12k, LED rock lights, "train" horns, Home made-Hand Throttle, OBA, Etc etc.
srad600 is offline   Quote
Old 11-30-2012, 10:19 AM   #11
Supporting Member

WF Supporting Member
 
schnutzy's Avatar
 
Join Date: Sep 2009
Location: ring side seats to the the country's largest circus
Posts: 28,192
Send a message via AIM to schnutzy
Quote:
Originally Posted by Garrowcr223 View Post
It's the 32 RH automatic transmission 3speed
4.56 gears would be the normal recomended ratio for your transmission/engine/tire combo.

Quote:
Originally Posted by philk View Post
there are things you can do, i have done them, bored out throttle body 64mm, borla header, hi flow cat and muff. went to an electric fan , big diff, my friends stock jeep could not keep up with me, he is now doing the same mods, but i put a 4.7 stroker motor from ATK in it, the jeep flys now, has stock 307 in it an 31s but putting a 8.8 rear end in it next week having it regeared to 355s, let the good times roll, drive it like you stole it......
the difference between your jeep and the OPs is that he is on 35s. that is a huge differance. no amount of bolt on engine parts will do him any good in getting him back to stock performance.
__________________
clinging on to sanity, one motorcycle at a time.
schnutzy is offline   Quote
Old 11-30-2012, 10:25 AM   #12
Jeeper
 
Imped's Avatar
 
Join Date: Jan 2011
Location: Indy
Posts: 3,341
Those won't do crap for you.

Gears will help out quite a bit but your power-robbing slushbox 32rh isn't helping the problem either. Go drive a manual-equipped TJ and it'll feel like a jet plane compared to what you've got.

__________________
Daily Driver Rock Rig
IndyORV
Imped is online now   Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not 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




Download our Mobile App

» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 04:19 PM.



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