So the question of the day is why not? What do you foresee the computer doing that wouldn't work?

These 3.6's with a nice mid 3 series gear would be fantastic, remembering back to when I purchased my 93 mustang gt the first thing I did was put 3.73's in it which was enough to drop it into the 13's. I would expect similar results with this.

I have been trying to imagine how the computer would be impacted by gears other than not reading the speed correctly. Any thoughts?

From what I'm told changing gears without a tuner to adjust your settings would throw your car into limp mode and it won't move.

I have heard the same, what I am looking for is what is the basis for this claim?

How specifically is the computer going to decipher that there is a higher gear set installed?

So the question of the day is why not? What do you foresee the computer doing that wouldn't work?

These 3.6's with a nice mid 3 series gear would be fantastic, remembering back to when I purchased my 93 mustang gt the first thing I did was put 3.73's in it which was enough to drop it into the 13's. I would expect similar results with this.

I have been trying to imagine how the computer would be impacted by gears other than not reading the speed correctly. Any thoughts?


I think someone here tried it and it was a failure. Without the ability to modify the "config" (stupid computers)..... it cannot handle the rpm differences vs speeds, etc. The car sees something wrong. It's just not happening.

Can you even get gears for the 200mm rear?
A gear change will not affect the speedometer, only tire diameters will.

Without programming, your car may go into trans limp mode. This would be because the compute thinks it lost control of the trans when it sees the wheel speed sensor not matching the trans output and differential ratio.

If you can get gears, I can program them for you.

A small gear change should be okay. Say a 2.56 to a 2.82, but with a big gear change, you will not make it into second gear before you hit trans limp mode. When this happens, the computer takes control away from you. You will be in neutral and idling.

Dont do it this a guy who has tried the ecu will go into limp mode and will not change gears. Tge dealers cannot change them and dodge will not support this. Your car will become useless wait for tge turner

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Car computers are getting too smart for their own good. Or rather I should say it is the tight asses at Chrysler who are doing all they can to take our fun away in the name of saving money on warranty claims, not that a properly installed set of gears would be a problem for that.

Well that's disappointing, I shall wait.....

So for the 200 mm there are no gears available?
So when tunning becomes available will the gears Will follow?
Thanks,
Richard

So for the 200 mm there are no gears available?
So when tunning becomes available will the gears Will follow?
Thanks,
Richard


Not likely. You'll need to swap to the 215mm rear end if you want to change gear ratios.

Not likely. You'll need to swap to the 215mm rear end if you want to change gear ratios.

Sounds expensive.

Sounds expensive.



It turns out it really isn't that bad compared to buying new gears and having them installed. A housing with gears out of a wrecked car will go for less than $300. You should be able to get the entire rear R/T cradle out of a wrecked car, including axles, suspension, and brakes, ready for wheels to be bolted on, for less than $1500. Assuming aftermarket gears were made for the 200mm rear end, a new set installed in a car that won't see many aftermarket sets sold/installed would probably cost about $800.

It turns out it really isn't that bad compared to buying new gears and having them installed. A housing with gears out of a wrecked car will go for less than $300. You should be able to get the entire rear R/T cradle out of a wrecked car, including axles, suspension, and brakes, ready for wheels to be bolted on, for less than $1500. Assuming aftermarket gears were made for the 200mm rear end, a new set installed in a car that won't see many aftermarket sets sold/installed would probably cost about $800.

to some people thats very expensive, and others not so much.

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to some people thats very expensive, and others not so much.

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I agree with you. Although this mod is within reach for me it doesn't matter without being able to tune the ECU. Some say a small change in gearing "may not" throw the transmission into limp mode but why bother with a small change?
It is now well over a year since the 3.6L has hit the street and no third party tuning is available. I hope I'm wrong but I believe it will not happen.

I agree with you. Although this mod is within reach for me it doesn't matter without being able to tune the ECU. Some say a small change in gearing "may not" throw the transmission into limp mode but why bother with a small change?
It is now well over a year since the 3.6L has hit the street and no third party tuning is available. I hope I'm wrong but I believe it will not happen.

it will happen, it will take more time, i believe it took like 2-3 years for the 2010 and earlier software to be cracked, so dont give up yet.

i do think if the sxt's software is different then the bigger brothers it will be last to be cracked or if its not cracked there will be piggy back set ups or even all new ecu/ecm's for purchase in order to get around it, but again thats if there is a market big enough to support it, which for the v8's there is for sure, but the 6's i am not convinced the market is big enough for massive things to be dropped for it.

only time will tell, but i wouldnt give up just yet.

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...........but the 6's i am not convinced the market is big enough for massive things to be dropped for it.

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Yep, you have said this before and I firmly believe you are correct.

I believe, without a doubt, that the third party tuning will happen for the V8's. The 3.6L software is most definitely different and will require it's own unique programming solutions. With that in mind the size of the market for it will probably make it too cost prohibitive to develop. I have said it before and, since I own one, I really, really hope I am wrong.
Maybe the "piggyback" thing you mentioned will be cheaper to develop. Any thoughts on why nothing has been done yet in this arena? Especially for the v8's? Certainly the market for something for the Hemi's is large enough to have already spawned something. The guys are clamoring for it for crying out loud. :icon_lol:

I just can't help but think that there is way more going on than meets the eye when it comes to not being able or willing to offer a tuning solution.

Yep, you have said this before and I firmly believe you are correct.

I believe, without a doubt, that the third party tuning will happen for the V8's. The 3.6L software is most definitely different and will require it's own unique programming solutions. With that in mind the size of the market for it will probably make it too cost prohibitive to develop. I have said it before and, since I own one, I really, really hope I am wrong.
Maybe the "piggyback" thing you mentioned will be cheaper to develop. Any thoughts on why nothing has been done yet in this arena? Especially for the v8's? Certainly the market for something for the Hemi's is large enough to have already spawned something. The guys are clamoring for it for crying out loud. :icon_lol:

I just can't help but think that there is way more going on than meets the eye when it comes to not being able or willing to offer a tuning solution.


The piggyback is kind of a "band aid" to the solution...its not ideal, being able to directly manipulate the cars actually computer is much more desireable...so that is where the focus is at right now...piggy backs wont come until trying to crack the code of the regular computer has the general almost 100% consenses that it cant happen...then they will look into other means i.e. Piggybacks...but until its pretty clear the code cant be cracked, no one wants to develope new ecu's or piggybacks that work and then a couple of months later the code is cracked and you can just reflash instead of spending big bucks on new engine management...if those were the choices the market would choose the reflash option...new engine management and piggys back would never be purchased and all that time, effort & most importantly money those companies put into the new ems and piggy backs would be wasted and then they would be behind the 8 ball trying to catch up with cracking the current code

The v8's are getting ecm/ecu swaps with older models so they can be tuned...this has been done for years in the import market...od2 vehicles get a new engine management system with ob1 ecu so it can be better and more easily tuned...same with the newest chrylers...altough i see threads that b&g has figured it out and can tune the 11+ v8's now...im willing to bet the v6's encryption is not much different and will be cracked if in fact the v8's have been

On another note there is a company that has made a s/c for the 3.6 jeep and its running a piggyback set up...no price has been released or is there an eta, but thats their claim...so that could be another step in the right direction...

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You guys crack me up. You'll spend $1000 on an exhaust and intake that does nothing but make more noise but you won't spend $1500 on a larger housing with steeper gears, larger axles, and larger brakes? :icon_lol:

You guys crack me up. You'll spend $1000 on an exhaust and intake that does nothing but make more noise but you won't spend $1500 on a larger housing with steeper gears, larger axles, and larger brakes? :icon_lol:

PT, aren't steeper gears out of the question with no tuning? I agree, brakes, shocks and sway bars are a great upgrade. They are on my list.

PT, aren't steeper gears out of the question with no tuning? I agree, brakes, shocks and sway bars are a great upgrade. They are on my list.



Yes, at this time they are just a "dream". :)

Unfortunately, until we get tuning this whole topic is academic. My wife is a professor at Cal State Fullerton so the factory 2.65 gears are good for her on her mostly freeway drive, but I wouldn't mind dropping in the 3.06:1 gearset. By the way, the R/T parts are upgrades on the non-SS/T SE cars. If you have the SS/T then you already have those parts. You'd need to step up to an SRT cradle to upgrade an SS/T, which would be overkill.

Yes, at this time they are just a "dream". :)

Unfortunately, until we get tuning this whole topic is academic. My wife is a professor at Cal State Fullerton so the factory 2.65 gears are good for her on her mostly freeway drive, but I wouldn't mind dropping in the 3.06:1 gearset. By the way, the R/T parts are upgrades on the non-SS/T SE cars. If you have the SS/T then you already have those parts. You'd need to step up to an SRT cradle to upgrade an SS/T, which would be overkill.

Nope. No SS/T here. I wouldn't mind having the 3:06 gears either.
Someday the Eibach dampers and sway bars and maybe even R/T brakes. Who knows. I usually don't keep cars more than 3 years so I may not spend anymore on this one. We'll see how that works out. :)

Nope. No SS/T here. I wouldn't mind having the 3:06 gears either.
Someday the Eibach dampers and sway bars and maybe even R/T brakes. Who knows. I usually don't keep cars more than 3 years so I may not spend anymore on this one. We'll see how that works out. :)


I had that same problem, not keeping cars for more than two or three years. Then I got married and had kids and it all changed. :cry: I bought my truck new in 2006 and expect to have it for many years to come. At least it has a diesel engine that will pretty much run forever.

I had that same problem, not keeping cars for more than two or three years. Then I got married and had kids and it all changed. :cry: I bought my truck new in 2006 and expect to have it for many years to come. At least it has a diesel engine that will pretty much run forever.

Haha! Yep, I remember those days for sure. Our kids our grown with families of their own so dear old Dad can play a little more now.

I have a 2012 SXT Plus with the Super Sport Package (SS/T) and I have to say, there is a huge difference in my car and the standard V6. It feels like there are another 20 or 30 ponies under the hood. Of course the upgraded steering, suspension and brakes maybe add to the feel also. Either way, it sure feels a fair bit quicker behind the wheel.

I have a 2012 SXT Plus with the Super Sport Package (SS/T) and I have to say, there is a huge difference in my car and the standard V6. It feels like there are another 20 or 30 ponies under the hood. Of course the upgraded steering, suspension and brakes maybe add to the feel also. Either way, it sure feels a fair bit quicker behind the wheel.

It is quicker. The 3:06 gears are worth about 3 or 4 tenths of a second over the 2:65 gears in the zero to 60 times.