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RT4ME
08-05-2005, 08:03 PM
Is there a way to raise or remove the speed limiter which is set at 126 mph ?
Or do you have to buy an aftermarket programmer to do this.

Thanks,
Greg



ltdodge
08-05-2005, 08:10 PM
only aftermarket
GLHS837
08-05-2005, 08:26 PM
If there were one, which there is not yet.
Thunderkiss
08-05-2005, 08:26 PM
Who has an aftermarket programmer for the R/T 5.7L?
GLHS837
08-05-2005, 08:31 PM
If there were one, which there is not yet.

See above. :)
RT4ME
08-07-2005, 10:26 AM
Do they make an aftermarket one for the Chrysler 300 ? and if they do would'nt it work on the Charger?
GLHS837
08-07-2005, 10:29 AM
No they don't, therefore, it won't, but if they did, yes it would:)
camero
08-07-2005, 12:15 PM
No they don't, therefore, it won't, but if they did, yes it would:)

LOL :)
DAYTONA_R/T
08-07-2005, 12:28 PM
No they don't, therefore, it won't, but if they did, yes it would:)


ok, so where can I get one :D




(just kidding)
GLHS837
08-07-2005, 06:13 PM
You can't, becuase they dont, but if they did, you could:)
needasrt4
08-07-2005, 06:27 PM
Sorry to break up the slap stick with a little bit of seriousness, BUT........ If you when you approach the speed limiter you hold the key to the start ignition position, it will bypass the speed limiter and will continue on for as long as you hold the key turned, its a computer override, in sense..
DAYTONA_R/T
08-07-2005, 06:31 PM
now this was talked about over on LXforums... but the end result, no one who posted had tried it...

So my question would be, do you know this from word of mouth, or have you done this yourself?

Also at 124 MPH, how smart is it to drive with one hand, while the other one is holding the key?
DAYTONA_R/T
08-07-2005, 07:14 PM
here is the thread...
Key Trick (http://www.lxforums.com/board/showthread.php?t=13020&page=4&pp=10&highlight=speed+limiter)

this is basically nothing but a myth from what I have gathered
ltdodge
08-07-2005, 07:49 PM
dont know about he charger, but in the ram trucks it works!
DAYTONA_R/T
08-07-2005, 07:52 PM
dont know about he charger, but in the ram trucks it works!


yeah... the fact that it works in the truck is mentioned in the first post... this is where the info came about that perked interest on the LX board
GLHS837
08-07-2005, 07:58 PM
On a safety note, please remember that your limiter is designed around your stock tires speed rating. Now that rating does have a safety factor, so I'm not saying your tires will blow at 128, but you ARE overriding a safety feature. Please bear this in mind.
elcapitan87
08-08-2005, 08:53 AM
Here (http://linuxdevices.com/articles/AT4108597793.html) is the necessary programmer to remove the speed limiter, change fuel/timing maps or whatever else your heart desires on our cars. I'm sure that somewhere one could find one, but they're be quite pricey ($4500) and you'd still need the base maps to work from.
If all goes well, my car will be retuned this week. I've asked for whatever tune they used in the 300C that Motor Trend magically got to a 13.8 and the speed limiter removed.
DAYTONA_R/T
08-08-2005, 02:47 PM
DiabloSport Predator Programmers is working on a unit for the LX cars, but they are unsure of a release date as of yet... IMHO thier programmers are a hellovalot better then superchips or hypertech...
GLHS837
08-08-2005, 03:39 PM
el, are you sure it will do those functions? I can't see any reason that DCX would enable that kind of function in a dealership tool. I know the SRT team has computers that can do such, but to my knowledge, dealer levels tools are not allowed that level of access.

As far as buying one to reverse engineer, I'm pretty sure the DCMA would make that illegal.

And Daytona, there's a reson they are not saying. Becuase a lot of folks promised to crack the NGC and didn't. They dont want to make a promise they might not be able to keep. The SRT-4 community has heard "We're working on it" for three years now, nothing yet.
tbyrne
08-08-2005, 04:43 PM
Diablo should have the Hemi programmer out by the end of this year.
elcapitan87
08-08-2005, 05:05 PM
el, are you sure it will do those functions? I can't see any reason that DCX would enable that kind of function in a dealership tool. I know the SRT team has computers that can do such, but to my knowledge, dealer levels tools are not allowed that level of access.


My post was a little simplistic. You need a StarScan, and the proper maps for the car. On a laptop with the correct software (from DCX, available to...well, DCX and those that they deem worthy) you can datalog, then tune or edit anything you want. You then load the new tune from the computer to the StarScan and then download from the StarScan into the ECM. Darn thing ought to drive the car for $4500!
My route to getting the car programmed isn't dealer level, rather prototype-programming level. He doesn't need to crack the code, just use the tools that DCX gives them to modify the cars. I've mentioned it in other posts, but I have a very good family friend that works on all post-production prototyping for the LX platform. They build the cars that DCX sends to shows, magazines and wherever else a vehicle is needed for promotional purposes. Rick knows the cars inside and out as he and his crew have built quite a few by hand. He has the proper utilities to allow him (along with his StarScan) to do whatever they desire to these cars. I will continue to do my best to pass along the nuggets of wisdom that he imparts upon me to the group here.
GLHS837
08-08-2005, 05:44 PM
Okay, I understand now. Just wanted folks to understand it was not just a question of money. Now he can do yours as a favor kinda thing, but not other folks for money, or DCX would yank his access, correct? I'm sure he's got NDAs and other legalities to deal with
wannacharger
08-08-2005, 07:09 PM
Tell me about the Jet performance modules (see: http://www.proficientperformance.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=JT-90404Sa&Category_Code=jet_module_chyrsler-300-c&Store_Code=PP)

Might this increase top-end speed or is it just for low-end performance?

Inquiring minds want to know!!!!
GLHS837
08-08-2005, 07:20 PM
Search, titles only, "performance and module"
needasrt4
08-08-2005, 09:03 PM
So my question would be, do you know this from word of mouth, or have you done this yourself?

Daytona, this is my 2nd LX car, it has worked in both. I wouldn't have posted yes, without trying myself first to prove it.
tbyrne
08-08-2005, 10:25 PM
Here is our rundown for the Jet modules -

90404 2005-'06 Magnum, 300C and Charger with V-8 Hemi $229.99

90404S 2005-'06 Magnum, 300C and Charger *with V-8 Hemi using 91 or higher octane + modified exhaust $229.99

90405 2005-'06 Magnum, 300 and Charger *with V-6 $229.99

90405S 2005-'06 Magnum, 300 and Charger *with V-6 using 91 or higher octane + modified exhaust $229.99

Most people go with the Stage 1 unless they have more aggressive mods. This won't do anything to the vehicle's top speed and they will work on the '06 (confirmed with Jet today). This module plugs into the factory computer and then the harness plugs into it.
Inferno Charger
08-08-2005, 11:24 PM
I still think that there is a better way to do it then going with a Jet module and I am thankful I have a year to wait to get my car so hopefully something better will be on the market by then. For some strange reason the Jet module was the first one out on the Neon too and it was just a sticker on a stock PCM.....might even have run worse due to the extra weight of the sticker ;)

Later
elcapitan87
08-09-2005, 10:39 AM
Okay, I understand now. Just wanted folks to understand it was not just a question of money. Now he can do yours as a favor kinda thing, but not other folks for money, or DCX would yank his access, correct? I'm sure he's got NDAs and other legalities to deal with

Yes, mine will be done as a favor. I can't say that he couldn't do others as a favor as well though. Once you have the info and equipment its tough for them to yank the access. He doesn't work for DCX, rather a third party supplier that does DCX's prototyping on the whole platform.
The larger problem with having him reprogram cars is that you can't just buy a module or piggyback chip. He would have to either have the car here in MI, or mail ECMs back and forth as it is a true reflash when he puts a new program into the car. Not necessarily convenient, but not impossible.
Inferno Charger
08-09-2005, 12:58 PM
Wish we could get something like that......would be just awesome to have the program reflashed with a more aggressive one.

Later
elcapitan87
08-09-2005, 02:20 PM
We'll see how it turns out and then discuss how or if he would be interested in providing a service to others interested. Once my car is sufficiently broken in (next week :happy: ) we'll be loading the same program that they used in the phantom 13.8 300c that Motor Trend (IIRC) got about a year ago, with a few tweaks that they've put in place since then. Stock other than program, with the motor better broken in, that same car was a 13.5 car. He'll be using the fuel/timing maps from that car (still 87-89 octane) plus whatever else he can do that I ask for, like the speed limiter and such.
Current plan is to do the reflash at the dragstrip so I can get accurate before and after with the exact same conditions. Results will follow, in their own post.
Tricster
08-09-2005, 04:05 PM
elcapitan87, I am not far from MI.. PM me if you think he would do it for another.

Tricster