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Old 04-11-2012, 02:09 AM   #1
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have you used a superchip in ur wrangler?

How well does the superchip work in the wrangler has enybody used one?

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Old 04-11-2012, 02:12 AM   #2
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They make a good paper weight.. That is about the most benifet you will get from one.. Personally when it comes to chips im a big fan of doritos

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Old 04-11-2012, 08:43 AM   #3
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These will be about as useful.
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Old 04-11-2012, 09:21 AM   #4
Knows a couple things...

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Don't waste your $$$, they only help a tiny bit when you're at high near redline rpms and wide-open throttle. You won't notice any difference around town or while offroading.
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Old 04-11-2012, 09:32 AM   #5
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If you poll this question on the board, you'll find most of the people here do not and will not use them. There's a lot of aftermarket products to boost RPM and increase mileage, but even though they might work slightly on SOME vehicles, they are all a waste on a jeep. Airflow and exhaust are the best mods you can do for a little tiny bit of power, but you probably won't see any improvement at all.

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Old 04-12-2012, 10:52 AM   #6
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In their defense...a chip simply does electronically what you used to be able to do mechanically...before OBD. Brings timing in a bit quicker and increases "pulse rate" on injectors...the way hotrodders used to "bump" timing and "fatten" the carb mixture. Remember...a 5% increase on a 120hp motor will NOT show up like a 5% increase on a 400hp motor will. I truly believe they are most beneficial when used in conjunction with other mods conducive to taking full advantage of the lump sum of mods. For instance...the controversial 4.0 TB may not seem effective..but adding more fuel via the chip along with more air via the TB...see what I mean? Keep in mind...EVERYTHING is a trade-off! No give without any take...mark my words. Ron
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Old 04-12-2012, 11:37 AM   #7
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but adding more fuel via the chip along with more air via the TB...see what I mean?
the air restriction in the 4.0L is the camshaft and the head itself, not the TB. even the biggest TB can only let in the amount of air the engine can consume, at full throttle, at redline RPMs. Does your day normally consist of sustained high RPM, full throttle driving? see what I mean?
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Old 04-12-2012, 01:02 PM   #8
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plus the 4.0l is like a tractor engine, leave it stock, take care of it and it will last you a long time!
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Old 04-12-2012, 01:44 PM   #9
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Only chips I've got in the jeep are on the paint!
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Old 04-12-2012, 01:46 PM   #10
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Only chips I've got in the jeep are on the paint!
Love that!
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Old 04-12-2012, 01:50 PM   #11
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A JET one makes a huge difference on a YJ 4.0 with an auto trans
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Old 04-12-2012, 05:46 PM   #12
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I have one (did not cost me a dime, so why not try it?).

I had used one on my 2005 Dakota 4.7L, HUGE difference in conjunction with other mods.
On the 4.0 in the Jeep, not so much. Quite honestly, I did not expect anything shocking as comparing a straight 6 to a complicated V8 is comparing apples to oranges...

I must first say I drive the Jeep like a granny anyway. I did not buy my Jeep to race around in. Everything is stock, minus a dynomax exaust (stock air filter and box).

My findings:

91 Octane mode: Slight increase in power, mileage stays the same. When I mean slight..I mean I notice it on the bottom end through the entire powerband, but it ain't much.
Not worth the extra $$ per gallon for the minimal "feel".

87 Octane mode: engine idles less smooth. mileage is the same as stock. Does it feel different? Only at idle

Econo mode: Engine idles as stock. Feels like it has the same power as stock. Mileage is slightly better (maybe 1-2MPG, but my driving conditions were not 100% the same).

My conclusion: Save your money. Don't blow it on this, as it will not meet your expectations.

Why I keep it: Hey, it did not cost me anything, and I like to use it to read codes and use it for diags (but there are better options out there for this).

Also, I have a manual. If this could be used to modify shift points and speedo calibration, then MAYBE worth $100.00 to do this along with read codes.

My honest to goodness opinion based on my experience.
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Old 04-13-2012, 05:48 AM   #13
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Not only would I not buy one for a Jeep, I would not use one for free or if you paid me. Leave well enough alone.

I do have plenty experience with chips, tuners, dyno tunes, cam swaps...wranglers ate just not a platform where you net much if anything.

Swap your cam, install a turbo, etc.... Then you have a different story.

What do you hope to achieve? Better mpg? Keep your tires inflated and go easy on the throttle. Want more hp or is it acceleration you are after? Take your doors and top off to drop weight and or do a gear swap.
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Old 04-13-2012, 09:56 AM   #14
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I just getting every ones opinion on it.. i bought my jeep came with a jet chip but i used to have a superchip in my truck and i liked that i could program my gear ratio and tire size and what not.. i havnt even tryed out the jet chip lol i mainley want to adjust my gear ratio and speedo plus got a few buddys that could have used it already to read codes on their jeeps
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Old 04-13-2012, 10:08 AM   #15
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Originally Posted by JEREMYTJ View Post
I just getting every ones opinion on it.. i bought my jeep came with a jet chip but i used to have a superchip in my truck and i liked that i could program my gear ratio and tire size and what not.. i havnt even tryed out the jet chip lol i mainley want to adjust my gear ratio and speedo plus got a few buddys that could have used it already to read codes on their jeeps
why don't you just correct the speedo by swapping out the speedo gear, which costs a fraction of some useless chip and takes only 10 minutes...if you break for a beer halfway through.
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Old 04-13-2012, 10:25 AM   #16
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Lol ya thats what im going to do, just wondering what pples opinon wer on it.. thnks guys
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Old 04-14-2012, 07:22 AM   #17
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You cannot use the Superchip to adjust the speedo on our Wranglers, no matter what the advertisement says....or "false advertisement".
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Old 04-14-2012, 09:30 AM   #18
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Originally Posted by Hammond_Egger
You cannot use the Superchip to adjust the speedo on our Wranglers, no matter what the advertisement says....or "false advertisement".
Except maybe on Rubicons which use a sensor and not a speedo gear. Even then you're limited on tire sizes as I've found using the DRBIII.
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Old 04-15-2012, 07:28 AM   #19
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Except maybe on Rubicons which use a sensor and not a speedo gear. Even then you're limited on tire sizes as I've found using the DRBIII.
True!
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Old 04-15-2012, 09:13 AM   #20
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Do all rubicons (all years) have an electronic controlled speedo?

I had an opportunity to buy a diablo sport but didn't because I thought it couldn't change tire size which is all I wanted it for. Mine is an 06 lj with auto trans.
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Old 04-15-2012, 09:45 AM   #21
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Do all rubicons (all years) have an electronic controlled speedo?
all TJ's have electronically controlled speedos, not just Rubicons.

The difference is how the electronic signal is created from mechanical motion at the t-case. NP231's use a speedo gear that spins a sensor. The NP241OR uses a magnetic tone ring to detect speed via a magnetic pickup sensor.

In both cases, the electronic signal leaves the t-case and goes to the PCM in the same manner.

You can do electronic calibration correction with either t-case by splicing the appropriate electronic device in between the PCM and the t-case sensor (Dakota Digital, TruSpeed, Speedohealer, etc). The difference with the NP231 is you can also change the speedo gear, which is often the cheapest option to correct your speedometer & odometer.

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