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Old 10-04-2011, 07:43 AM   #1
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Horsepower boost

Have a 2012 JK with 35"-18" I'm would like to add some more power to the 3.8v6. Just wondering where start, I'd like to get as much as I can. My future planes are to get a lift and put on some much bigger tires, like 44". Any suggestions?

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Old 10-04-2011, 07:47 AM   #2
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Old 10-04-2011, 07:52 AM   #3
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Doesn't the 2012 have like 300 hp now?
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Old 10-04-2011, 03:39 PM   #4
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Originally Posted by Sdavis1 View Post
Have a 2012 JK with 35"-18" I'm would like to add some more power to the 3.8v6. Just wondering where start, I'd like to get as much as I can. My future planes are to get a lift and put on some much bigger tires, like 44". Any suggestions?
Why don't you figure out what your engine is and drivetrain first, then worry about mods.
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Old 10-04-2011, 03:48 PM   #5
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44's? Check with your state on height limits for road legal vehicles. In Michigan the lower side of the front bumper must ride under 26 inches max. Mine with a 4" lift and 33's sits at 25.5 inches. Another 1/2 inch of height and I would be above the limit. Chances of getting caught if your higher? Slim. They usually don't pick on it. But, you hit someone and hurt or kill them, trust me the idea that your ride height is not legal would be a breaking factor in an injury lawsuit against you.
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Old 10-04-2011, 03:50 PM   #6
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If you are going to run 44s you have way bigger issues to deal with than power to make that happen.
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Old 10-04-2011, 03:59 PM   #7
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Old 10-04-2011, 05:29 PM   #8
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U know, I have thought the same on a few posts I have seen on here. Hummmmmm...
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Old 10-04-2011, 05:45 PM   #9
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But he has an avatar photo, he must be legit?
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Old 10-04-2011, 05:46 PM   #10
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Old 10-04-2011, 08:23 PM   #11
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THIS:




+



=

Enough power to turn these:




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Old 10-04-2011, 11:54 PM   #12
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Quote:
Originally Posted by El Gringo

Why don't you figure out what your engine is and drivetrain first, then worry about mods.
Sure thanks, that sounds like a great place to start. Why didn't I think of that..... What ever!!
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Old 10-05-2011, 12:01 AM   #13
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Quote:
Originally Posted by oilwell1415
If you are going to run 44s you have way bigger issues to deal with than power to make that happen.
Not worried about the way "bigger problems", I was simply looking for information on horsepower upgrades. 44's is a future upgrade idea, however expensive it may be ill deal with those issue as they arrive. But again thanks for your lack of thought regarding technical question. Perhaps next time you decide to respond to a thread you could included something useful.
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Old 10-05-2011, 12:09 AM   #14
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dude your not gonna get any help with you bashing people.. What year is your JK? You can't have a 2012 and a 3.8 v6. So what year Jeep is it and at least I will try to help you figure out power upgrade options if you like.. I do know there isn't much if anything out there on the 2012's as far as HP and Torque upgades yet but if you got a 07-11 as long as you back off the bashing off forum members we and most certainly I will help you out.
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Old 10-05-2011, 12:11 AM   #15
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Quote:
Originally Posted by XJ Knight
dude your not gonna get any help with you bashing people.. What year is your JK? You can't have a 2012 and a 3.8 v6. So what year Jeep is it and at least I will try to help you figure out power upgrade options if you like.. I do know there isn't much if anything out there on the 2012's as far as HP and Torque upgades yet but if you got a 07-11 as long as you back off the bashing off forum members we and most certainly I will help you out.
It's a 2012 got it a week and a half ago. Has a 3.8 v6 and yes it's a 2012
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Old 10-05-2011, 12:12 AM   #16
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Originally Posted by Sdavis1 View Post
Sure thanks, that sounds like a great place to start. Why didn't I think of that..... What ever!!
he said that, because based on the information you gave us, your wrangler does not actually exist. there is no 2012 with a 3.8.
now as far as power upgrades go, there is super charging, engine swaps, etc. those are fine and dandy, but if u dont have the proper gears, you will still want more power. did you re gear with those 35 inch tires? cause if not, that would be the first place you want to start.
now this is all asuming u have a 3.8 in a pre 2012 wrangler. if in fact u do have a 2012, well, as of right now, there are no options for super chargers, etc, and motor swaps may still be a bit off while the after market plays catch up with any new computer stuff
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Old 10-05-2011, 12:14 AM   #17
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if you have a 2012 its a 3.6 not a 3.8..07-11 was a 3.8...the new 3.6 has much more horsepower already..whatever size tires you get you can regear the diffs to get back the lost power....other than gears you could do a supercharger or engine swap to somthing bigger
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Old 10-05-2011, 12:15 AM   #18
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Perhaps your right I'm just experiencing a bad day I guess. Any help you could give is greatly appreciated.
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Old 10-05-2011, 12:16 AM   #19
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Originally Posted by Sdavis1 View Post
Perhaps your right I'm just experiencing a bad day I guess. Any help you could give is greatly appreciated.
its all good, we all have days like that
first we need to know what engine you have, and what your current gears are.
if you bought your jeep lifted, there is a very good chance it still has the stock gears, which if you have the 3.8, is not right for your tire size. before you add horsepower, you need the right gears.
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Old 10-05-2011, 12:19 AM   #20
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I'm going to look now
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Old 10-05-2011, 12:21 AM   #21
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Yes I'm truly sorry, it is the 3.6, not sure of the gears though.
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Old 10-05-2011, 12:22 AM   #22
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What would good gears be for the 35's
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Old 10-05-2011, 12:25 AM   #23
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Quote:
Originally Posted by Sdavis1 View Post
Yes I'm truly sorry, it is the 3.6, not sure of the gears though.
Quote:
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What would good gears be for the 35's
well this puts you in a mighty interesting spot. the factory available 4.10 gears are your only option for the time being. if those are not what you have, then your SOL for now, until the aftermarket comes up with a solution. there are no options for the time being for power adders either. the aftermarket is still playing catch up there as well.
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Old 10-05-2011, 12:29 AM   #24
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Quote:
Originally Posted by El Gringo

Why don't you figure out what your engine is and drivetrain first, then worry about mods.
Sorry for snapping off, but I took your comment negatively and responded as such. However I see your point and stand corrected. Hope you accept my apologies.
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Old 10-05-2011, 12:30 AM   #25
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Quote:
Originally Posted by oilwell1415
If you are going to run 44s you have way bigger issues to deal with than power to make that happen.
Same goes for you... Sorry for the harsh treatment. I know your only trying to help.
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Old 10-05-2011, 12:37 AM   #26
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Originally Posted by schnutzy

well this puts you in a mighty interesting spot. the factory available 4.10 gears are your only option for the time being. if those are not what you have, then your SOL for now, until the aftermarket comes up with a solution. there are no options for the time being for power adders either. the aftermarket is still playing catch up there as well.
Well that's a bitter pill to swallow, but I can accept my short term misery and find solace in the thought that one day soon the ride of my dreams will come true. Thanks for your information, and to the two gents that I've spoken ell of I'm sorry..... I'm just a dumb ass
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Old 10-05-2011, 12:02 PM   #27
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Originally Posted by Sdavis1

Sorry for snapping off, but I took your comment negatively and responded as such. However I see your point and stand corrected. Hope you accept my apologies.
Apology accepted. I was truly trying to help by saying figure out what you have first.
I was not aware that they changed axles and assumed that you could regear.
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Old 10-05-2011, 02:32 PM   #28
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Is it that underpowered or are you just power hungry like the rest of of? ( me included). I know the new jeep is supposed to have 300 hp or close to it. And I realize that 35's without rehearing will slow it down a little but aren't the stock size tires close to 32" already. I didn't think it would make that much of a difference. Just curious, I wish I had that engine in my tj
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Old 10-05-2011, 04:48 PM   #29
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shoot man, your not a dumbass. All of us do not know what we do not know!

It sucks they don't have a lot of mods for your setup. But, being a 2012 I can understand. You almost need to get something 2-3 years old to really have a lot of choices in modifications.

I guess just stick with what works. Make it look nice, maybe spend some money on a whip stereo or something instead. Maybe get yourself a nice winch, high jack, good tow straps, something other than more HP to hold you over.
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Old 10-05-2011, 10:34 PM   #30
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Thanks for all your help. I mean it.

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