I think we all love our predators, I just purchased at U7136 set for my automatic 3.5L V6, HO Charger. Also, I believe we'd like to tweak them especially for more power / performance, even for the economical gas mileage increases. Some sets unfortunately, especially if you don't have a hemi, can be fairly limited to the canned tunes. So strictly for the automatic V6, U7136 set, I've heard these are safe tweaks, can someone verify?
Reset the TCM adaptives & increase shift firmness.
One user on the Charger forums has made these adjustments (quoting post):
As far as I know, we already have the 180 degree T-stat in our V6 engines, at least my 3.5L does, according to documents I have read on our engines. Since, I had no idea what I was doing, I kinda guessed, then as more V6ers were loading up tunes, I modified mine. I have the 93 Octane tune. Fuel WOT from 5K to 7K rpms is at a +1. I have Shift Firmness on. Autostick auto upshift is turned off. Tires set to my tires which are 255/18/60. Rev. limiter set to 6500, both drive and neutral. Speed limiter is set to 170mph. ESP is enabled, have the relay. Idle RPM has been left alone. ERG is turned off. If you look at my signature, you will see the performance mods I have. There is a clear difference in performance now.
If anyone has any better ideas on how to really tweak the 3.5L to squeeze more power, let me know. Hope this helps.
PS
Special thanks to the techs for your input, you guys are great!
Custom tunes for the canned tune on a U7136 set, safe?
Moderator: mikel
RE: Custom tunes for the canned tune on a U7136 set, safe?
To sadly answer my own questions:
Just curious how everyone feels about the support being offered via the forums here. IMHO the techs / CMRs pick and choose which questions they want to answer, when they do, however; they seem generally knowledgeable.
Do to a mess up with my product, and lack of support, unfortunately; I decided to return my predator.
This answer may be redundant regarding the U7136, but I had asked it; and it wasn't answered by support (I also couldn't find the answer in a search of the forum). Hopefully this helps those with similar questions, or those considering buying a 'Diablosport Predator' for the V6 3.6L, (specifically referring to the U7136 Tune). I did have the chance to look at and play with the tool before returning it, haha. Tunes are canned to 89,91,93. Above that the only real tweaks you can perform, are turning off / on the 'esp' and adjusting for 'tire size'. The tool also has a diagnostics to check / clear error codes; in the end it's very basic. It would be nice in subsequent firmware updates to see a little more versatility with the tool, whether pertinent or not these are only examples: IE allowing to reset TCM adaptives and firmer shifting etc. (ones such as these have low risk associated with them, and that could definitely benefit & improve performance in these vehicles).
Just curious how everyone feels about the support being offered via the forums here. IMHO the techs / CMRs pick and choose which questions they want to answer, when they do, however; they seem generally knowledgeable.
Do to a mess up with my product, and lack of support, unfortunately; I decided to return my predator.
This answer may be redundant regarding the U7136, but I had asked it; and it wasn't answered by support (I also couldn't find the answer in a search of the forum). Hopefully this helps those with similar questions, or those considering buying a 'Diablosport Predator' for the V6 3.6L, (specifically referring to the U7136 Tune). I did have the chance to look at and play with the tool before returning it, haha. Tunes are canned to 89,91,93. Above that the only real tweaks you can perform, are turning off / on the 'esp' and adjusting for 'tire size'. The tool also has a diagnostics to check / clear error codes; in the end it's very basic. It would be nice in subsequent firmware updates to see a little more versatility with the tool, whether pertinent or not these are only examples: IE allowing to reset TCM adaptives and firmer shifting etc. (ones such as these have low risk associated with them, and that could definitely benefit & improve performance in these vehicles).
RE: Custom tunes for the canned tune on a U7136 set, safe?
Correction 3.5L
RE: Custom tunes for the canned tune on a U7136 set, safe?
Hard to answer (also not sure what the question is 
)
You said that the only tweaks possible to the canned tunes are esp on/off, and tire size. In addition, check/clear error codes.
But above that you quoted someone who says they adjusted WOT fuel, shift firmness, upshift behavior, rev limiter, speed limiter, esp, tire size, idle rpm, egr on/off. So there is more you can do. There is also the scan tool function to monitor and log OBDII parameters (this is different from trouble codes). If you are tuning or simply monitoring the performance of your engine this is critical.
Another misunderstanding is what the product is. (Actually I can't say that since I'm not DS and don't really know how they intended to market it). The way I see it is that it's a tool that *enables* tuning the car. Prior to the predator there just wasn't a way to tune at all. So the predator allows access to the PCM. To enable selling the tool it is bundled with canned tunes for lightly modded cars. It's kind of like getting an XBox bundled with a couple of games. These are real live custom tunes for your engine. They will be a bit on the conservative side to allow a margin for slight differences from car to car, etc but very good (since it's a tune for a basically stock car most everything is known and a generic tune will apply to all with that model and engine). CMR is available for tuners to develop custom tune files which can be applied to the car with the tool. This is if you want or need something outside of the supplied tune. The handheld has limited capabilities to adjust a tune and if you want/need more than that you hire a tuner with the CMR software to generate a custom tune for you.
I think the forum's support function is for supporting the tool. Does the tool work as intended? and enhancement requests. It is not intended for DS to teach you how to tune an engine. Naturally the bundled tunes are supported as well. The main purpose is not to teach everyone tuning fundamentals, although that is good for business. The other balancing act is that there is enough capability in the handheld to allow you to damage your engine if you don't know what you're doing. On the other hand if it didn't have that then it would be far less useful and of less value for those that do know what they're doing.
It's kind of like buying a power saw from Skil. They're going to tell you and support you in operating the saw but not so much on how to frame a window. If you asked them you might get some help but their primary support will be for operating the tool. That's how I see it.
)You said that the only tweaks possible to the canned tunes are esp on/off, and tire size. In addition, check/clear error codes.
But above that you quoted someone who says they adjusted WOT fuel, shift firmness, upshift behavior, rev limiter, speed limiter, esp, tire size, idle rpm, egr on/off. So there is more you can do. There is also the scan tool function to monitor and log OBDII parameters (this is different from trouble codes). If you are tuning or simply monitoring the performance of your engine this is critical.
Another misunderstanding is what the product is. (Actually I can't say that since I'm not DS and don't really know how they intended to market it). The way I see it is that it's a tool that *enables* tuning the car. Prior to the predator there just wasn't a way to tune at all. So the predator allows access to the PCM. To enable selling the tool it is bundled with canned tunes for lightly modded cars. It's kind of like getting an XBox bundled with a couple of games. These are real live custom tunes for your engine. They will be a bit on the conservative side to allow a margin for slight differences from car to car, etc but very good (since it's a tune for a basically stock car most everything is known and a generic tune will apply to all with that model and engine). CMR is available for tuners to develop custom tune files which can be applied to the car with the tool. This is if you want or need something outside of the supplied tune. The handheld has limited capabilities to adjust a tune and if you want/need more than that you hire a tuner with the CMR software to generate a custom tune for you.
I think the forum's support function is for supporting the tool. Does the tool work as intended? and enhancement requests. It is not intended for DS to teach you how to tune an engine. Naturally the bundled tunes are supported as well. The main purpose is not to teach everyone tuning fundamentals, although that is good for business. The other balancing act is that there is enough capability in the handheld to allow you to damage your engine if you don't know what you're doing. On the other hand if it didn't have that then it would be far less useful and of less value for those that do know what they're doing.
It's kind of like buying a power saw from Skil. They're going to tell you and support you in operating the saw but not so much on how to frame a window. If you asked them you might get some help but their primary support will be for operating the tool. That's how I see it.
2006 Magnum SRT8
AFE Stage II
Mopar Cat Back
185* T-stat
RDP tune by Steve
AFE Stage II
Mopar Cat Back
185* T-stat
RDP tune by Steve