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-   -   Horsepower and torque uprades.. (http://www.wranglerforum.com/f210/horsepower-and-torque-uprades-202528.html)

Garrowcr223 11-29-2012 10:45 PM

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!!

TJspeed 11-29-2012 10:49 PM

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.

Garrowcr223 11-29-2012 10:56 PM

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? :p

TJspeed 11-29-2012 10:58 PM

Regearing is the best way to gain power.

Someone will chime in and give a more detailed answer.

srad600 11-29-2012 11:00 PM

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.

Garrowcr223 11-29-2012 11:00 PM

With the information given what gears would you suggest and about how much would that run me?

TJspeed 11-29-2012 11:01 PM

Quote:

Originally Posted by Garrowcr223 (Post 3049806)
With the information given what gears would you suggest and about how much would that run me?

What Trans do you have

Garrowcr223 11-29-2012 11:18 PM

It's the 32 RH automatic transmission 3speed

philk 11-30-2012 06:34 AM

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......

srad600 11-30-2012 09:12 AM

Quote:

Originally Posted by philk (Post 3050427)
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.

schnutzy 11-30-2012 09:19 AM

Quote:

Originally Posted by Garrowcr223 (Post 3049886)
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 (Post 3050427)
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.

Imped 11-30-2012 09:25 AM

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.


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