I've noticed great improvement with my superchip, being a manual trans may help too. I have yet to notice any mpg gain, but the low end power and throtte response is great. Also the ability to change fan settings is awesome. The improvements are noticeable enough to where I wish I would of bought one sooner. I'm running 295/70/17's. There is a much more detailed thread on this that would be a good reference. It was titled: Superchips Flashpaq for JK, Initial Impressions.

 

It will cause detonation

 

IMO any programmer is a waste if you only got it for the performance part. That being said they are very cool for all the other features they offer as far as fan control, shift point adjustment, locker control, and on and on. That is the real reason to own one not for the performance aspect. I've owned a couple and then I realized the only real reason it runs any better is the octane of fuel you are using is most of why it runs better. Yeah when you first plug it in it will run great until the computer starts to readjust to your current driving style then before you know it it seams like it runs like stock again. I've seen it so many times, snake oil in a box! Gears are where it's at my friend!

 

With the compression that these engines have if it knocks on 87 octane then the timing is too advanced!!!!!!! Look at a PV (Pressure Volume curve) on a log log scale and then tell me that these guys really know what they are doing. The knocking is telling me that the MFB50 (Mass Fraction Burned 50%) is happening to early in the power cycle.

99 out of 100 I bet no one knows WTF I am talking about.

So yes they are a waste of money from my perspective.

Tools to measure inside the combustion chamber during an ignition event can cost upwards of $100k per system. Chrysler has a lot of these systems so does Ford and GM. I bet that superchips has ZERO of this measurement equipment.

I work for a company that sells engine testing equipment like this including emission benches, AC active dynos and more. I only have respect for one aftermarket chip company because I know how they do their work. Unfortunately these guys specialize in Diesels not gas engines.

So as the saying says buyer beware.

 

I ordered my gears and a Procal yesterday. I figure that will do what I want my Jeep to do. Putting in Yukon 4.88's with Zip lockers. Cost me roughly $2700.00. Alot of money, yes, but I will finally get rid of the loss of power on my 2011 JK 6 Speed manual & 33's. Will more than likely go with 35's when I ware out these tires. Price includes an air compressor and goodys! Figure I will do it right when I do it!

 

I have no clue what you are talking about but I sure would like to! Apparently you think As much as I do of these programmers!

 

Yeah i am one of the 99. But I think the tuner is worthless.

 

For the JK I don't think it's worth the cost. I bought an AEV Procal for tires off a member who never used it for $100...that was as much as I was willling to spend for a tuner. For the price of a tuner like Superchips, I could go on a long weekend camping trip.

 

i have actually talked to guys that work for predator programmers on challenger talk and when you ask them about how the program does not get overwritten by the computer after so many thousand miles from input of oxygen sensors, mass airflow sensors, and adaptive learning control they just get mad and start flying off the handle. one guy went nuts and someone who knew him told him to calm down because some of the guys on here may already know the answer but just want to see your reaction. that pretty much told me all i need to know about programmers, exhaust, and intake kits. i no longer am on that forum cause now i have a jeep!!!

 

Uhh, what.. Your right that was technical and I personally don't know WTF you were talking about. Although it does sound like you are pretty savvy. I can tell you by personal experience that the Superchips programmer does work for added torque and horsepower. I have tried all the settings and I am happy with the 91 octane performance setting on my 6sp manual. At 60 mph in 6th gear I tried the tow setting, 87 octane setting and the 91 performance setting on the same long probably 4 degree incline on the freeway. The 87 octane setting I definitely had to downshift to 5th to gain speed. The tow setting I could leave in 6th but it would slowly gain speed so I would downshift back to 5th to gain speed quicker. On the 91 setting I could leave in 6th gear at 60mph and as I gave it more gas the jeep would accelerate much quicker. No, its not a Hemi or it doesn't make up for gears but it does help considerably. And it makes the jeep drive much better. I have not noticed any difference with mileage. I have been running 89 octane on the 91 mode with no pinging. I tried 87 octane on the 91 octane setting and it's no good because it does make the motor knock.