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Old 01-06-2012, 11:02 AM   #1
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What is the best programer or chip for a JK?

I have a 10 JKU that is an automatic and I and wanting a little more power out of it. Thus far I've installed a Banks Ram Air intake and cat back exhaust. I'm also rolling on 35" tires with a 4" Pro Comp lift. I have a friend with an 09 JKU that I helped install a pro charger and that runs fantastic but I'm not completely sure that I'm ready to make that costly of an investment just yet. I was thinking about possibly getting a programer or chipping it but I'm not sure which one to get. Any advise?

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Old 01-06-2012, 11:10 AM   #2
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Quote:
Originally Posted by Cjkitch
I have a 10 JKU that is an automatic and I and wanting a little more power out of it. Thus far I've installed a Banks Ram Air intake and cat back exhaust. I'm also rolling on 35" tires with a 4" Pro Comp lift. I have a friend with an 09 JKU that I helped install a pro charger and that runs fantastic but I'm not completely sure that I'm ready to make that costly of an investment just yet. I was thinking about possibly getting a programer or chipping it but I'm not sure which one to get. Any advise?
A programmer like the Superchips may help a bit, but with those 35s, the best thing to do would be to regear. Of course, you will need the programmer when you do that so you can tell the jeep about the new gears. You could always get the programmer now and regear later. I'm sure your shift points are all out of whack with those 35s since your jeep still thinks it has 32s or even 29s under it.

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Old 01-06-2012, 11:34 AM   #3
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It has the 3.73 gears and when I get new tires I'm thinking about going to a 32 or 33. And I really do not want to have to regear. If I have a little smaller tire such as the 32 or 33 will I have to regear?
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Old 01-06-2012, 11:45 AM   #4
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I have the Superchips tuner on my JKU with automatic. Superchips will tell you that their tuner is not compatible with a high-volume ram air type intake. There is one tuner on the market (I think it's called Scorcher, aFe's??? I'll have to check) that is supposed to work with with their own cold air exhaust kit. Superchips told me that they are working on tunes that will work better with CAI's.

I have experienced no noticeable increase in HP or torque (not sure I could "feel it" anyway) with the tuner, and the mileage has remained about the same. The main advantage is much more suitable shift points for the auto tranny, and increased gas pedal sensitivity. The tunes make a noticeable and great improvement in the way the throttle and tranny performs. I love it.

The other advantage to you is that you can tune adjust your speedo, with improved tranny torque management, with your larger tires. I would highly recommend a tuner, but it won't return your rig to perform as it would with stock-sized tires. I'd think you still need to re-gear for optimum performance.
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Old 01-06-2012, 11:50 AM   #5
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No with 3:73 gears if only going up to a 33" regearing not nessasary
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Old 01-06-2012, 12:00 PM   #6
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Regearing is almost never "necessary." If you point the jeep in the direction you want to proceed--even with 35" tires--and step on the gas, it will go. Albeit slowly and guzzling large quantites of fuel.

And yes, since you have 3.73 gears and the 2007-11 4 speed auto transmission, 32" or 33" tires will help. However, 32" or 33" tires will look ridiculous under 4" of lift.

I don't understand why you don't want to regear. It is far and away the best thing for you to do other than swapping in a smaller lift and putting on smaller tires. Though even then, folks on this forum with the transmission you have are running 5.13 gears with the FACTORY tires. In other words, the factory 3.73 gears are criminally short even for the factory tires. That is the reason your jeep drives so poorly, and no tuner is going to materially improve it. Your engine really doesn't need more power--it needs more mechanical efficiency to apply the power it has.

You really, really need AT LEAST 5.13s and preferably 5.38s. It'll cost you about $1500 to $1800 and will give you a vastly improved driving experience. Do that.
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Old 01-06-2012, 12:21 PM   #7
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I have a family full of mechanics so all the labor will be done by me and the family. Where should I look for new gears? I'm not completely against regearing, but if I could find an quicker and easier solution I would prefer that. About the 5.13 or 5.38 gears, would I have to swap out anything out computer wise or could I simply swap gears and be set?
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Old 01-06-2012, 12:29 PM   #8
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Originally Posted by Cjkitch View Post
About the 5.13 or 5.38 gears, would I have to swap out anything out computer wise or could I simply swap gears and be set?
The Superchips tuner for Jeep allows you to re-program your computer for different gears.
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Old 01-06-2012, 12:31 PM   #9
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Originally Posted by Cjkitch View Post
I have a family full of mechanics so all the labor will be done by me and the family. Where should I look for new gears? I'm not completely against regearing, but if I could find an quicker and easier solution I would prefer that. About the 5.13 or 5.38 gears, would I have to swap out anything out computer wise or could I simply swap gears and be set?
(1) There absolutely is not any quicker and easier solution. This is what you need to do to restore reasonable performance and not be driving such a "dog."

(2) Check with your family about installing. Axle gears are a specialized job requiring specialized tools and skills. Many shops won't even do them. Merely being a mechanic is not enough.

(3) Assuming your family can handle the install, Yukon gears are great. Hook up with Northridge4x4 (here) to get the right parts and so on. You'll at least need gears and master install kits. Have the family member who's doing the install speak with Northridge. If your family cannot handle the install, don't order the gears yourself. Find a shop that will do the install and order the gears through them--that way they can't blame any problems on the gears "you" chose.

(4) You will also need an AEV ProCal to tell your computer that you have new gears. Northridge can take care of that for you. Superchips will work too, but it's twice as expensive as the ProCal. In exchange for the extra coin, you get everything the ProCal does plus some "fuel tunes" (i.e., 87 Octane Tune, etc.) and some "specialized tunes" (i.e., Crawl Tune, Tow Tune, etc.). Whether the tunes actually do anything is of some debate, so that's up to you.
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Old 01-06-2012, 01:13 PM   #10
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some "specialized tunes" (i.e., Crawl Tune, Tow Tune, etc.). Whether the tunes actually do anything is of some debate, so that's up to you.
I use the Superchips 91 octane tune. Like I said above, HP/torque and MPG have not changed at all, at least perceptibly. Throttle response and shifting are DEFINITELY improved, and the difference is night and day over stock. I'd say the tunes would absolutely useless if you had a manual tranny. Then I'd go with a cheaper tuner just to change tire size, gear changes, etc. without the performance tuning.
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Old 01-06-2012, 01:27 PM   #11
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Quote:
Originally Posted by Renaissance_Redneck
I use the Superchips 91 octane tune. Like I said above, HP/torque and MPG have not changed at all, at least perceptibly. Throttle response and shifting are DEFINITELY improved, and the difference is night and day over stock. I'd say the tunes would absolutely useless if you had a manual tranny. Then I'd go with a cheaper tuner just to change tire size, gear changes, etc. without the performance tuning.
Nope.. 6 speed here.

93 tune and loving it, not "night and day"
but a noticeable difference.
Setting back to stock is when you feel the most change "instantly"
Just setting a tune, it takes a few tank fulls fore the jeep to adjust and for you to really feel anything.

That's why I don't buy the "just programmed my jeep with 93 and omfg"
It takes some miles
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Old 01-06-2012, 02:18 PM   #12
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Nope.. 6 speed here.

93 tune and loving it, not "night and day"
but a noticeable difference.
Well, I'm glad you chimed in on this, because I have thought otherwise. I had convinced myself that the programmer really did nothing for HP/torque, but mainly improved the performance of the auto trans. I think even Superchips concedes that many manual tranny owners might be disappointed with the tuner. I'm glad you provide some evidence to the contrary; perhaps the tunes are better than I had thought!
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Old 01-06-2012, 02:33 PM   #13
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Originally Posted by Renaissance_Redneck
Well, I'm glad you chimed in on this, because I have thought otherwise. I had convinced myself that the programmer really did nothing for HP/torque, but mainly improved the performance of the auto trans. I think even Superchips concedes that many manual tranny owners might be disappointed with the tuner. I'm glad you provide some evidence to the contrary; perhaps the tunes are better than I had thought!

... Agree
I spent a lot of time over on the superchips forum, many 6 speed people happy with the Flashpaq.
There was a pinging problem earlier.
I bought the tuner used and until I paired with my jeep and updated I was having issues myself.
Updated and everything is well.
I was skeptical at first having a 6 speed.
I'm confidant to say it works well with a manual.
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Old 01-07-2012, 12:49 PM   #14
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I recieved my superchips flashpaq on Wednesday, Jan 4 and installed the 87 tune that day. Waiting to go through the first tank of gas to calculate the MPG change. I have an auto trans and the shift points seem to be more efficient but I will have a better opinon once the tune settles in. The gas pedal is more responsive and does not require as much force to get the jeep to move. I am still trying to decide if I am happy with the purchase.

For performance mods diablo is one of the best. However AFe used superchips to design a tune for there CAI so you may be able to purchase this tune for added benefit.


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Old 08-27-2013, 02:18 PM   #15
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Thread is really helpful thanks guys i'm in the same boat.

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