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ESP Discussion.

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Old Sep 22, 2009 | 01:43 PM
  #31  
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Start edit: But he did state in his original post that he was able to get sideways without interferance from the ESP. I haven't seen proof that it does as much as you think. End edit.


ESP, when on, does quite a bit. I tested it in the snow when I first got the truck. As soon as I started going sideways, ESP kicked in and dropped RPM's. When I took it partially off, I was able to fishtail significantly.

I got the truck a little sideways this time to see what the limits of ESP partially off really were. This time I tried a wet road since there is more traction then with 4" of snow. With ESP on I would have never gotten as far sideways as I did. I have no intentions of getting my truck sideways again unless it is to test the ESP.

As far as acceleration is concerned, if the brakes are being applied to a wheel because it is spinning, it is inhibiting that wheel from its full potential. Now, I am fully aware that if the wheels were allowed to spin, without any input from traction control, that they will most likely just spin, spin, and spin some more and my acceleration may actually be less.

But, say I was at a track, with the tires aired down, and was able to get traction with only a slight amount of spinning. If that slight spinning activated the traction control then forward acceleration may be less then what it would be without the use of traction control on.

ran jr, I am really confused by what you are asking me. I have the 3.92 limited slip. But, a limited slip will sometimes still allow the wheels to spin at different rates. It is not a locker or a spool. Hence the name, LIMITED SLIP. So, the rear wheels can still be braked individually by the traction control if the truck senses that one wheel may be slipping.

There is also input from the steering wheel position sensor that will tell the truck if it is merely loosing traction in a straight line or if it going sideways. So, if the steering wheel is straight, ESP is partially off, and I floor it, traction control will apply the brakes to the rear wheels if they are spinning.
 
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Old Sep 22, 2009 | 02:05 PM
  #32  
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sarguy, just for my information how far sideways were you able to get in Partcial mode before you stopped or the ESP was able to engauge and stop the slid. I have the 3.55 so that may cause a little diffrence but I doubt that it would be very much.
I agree that on a strip that a little wheel spin can be desired and if the TCS decides to be touchy it can actually slow your time down, where as if you are a old school driver and know how to play with that little peddle rather than just mash it to the floor you can get a better time.
 
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Old Sep 22, 2009 | 02:12 PM
  #33  
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Originally Posted by dhopkins
sarguy, just for my information how far sideways were you able to get in Partcial mode before you stopped or the ESP was able to engauge and stop the slid. I have the 3.55 so that may cause a little diffrence but I doubt that it would be very much.
I agree that on a strip that a little wheel spin can be desired and if the TCS decides to be touchy it can actually slow your time down, where as if you are a old school driver and know how to play with that little peddle rather than just mash it to the floor you can get a better time.
I would guess 3-4 feet, measured from the rear wheel. I was a foot or so from the double yellow line on the road and crossed well over it with my driver's side tire. I let off the gas, I didn't have enough road in front of me to keep going.

I am not here to say ESP is horrible and want to do everything possible to remove it. I just want the choice to turn it off, for whatever reason. I also want to be able to turn traction control off, for whatever reason.

For 99% of my driving, the ESP button in my truck is never touched.
 
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Old Sep 22, 2009 | 02:29 PM
  #34  
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By all means do what you want. I'm just trying to save you a little time and potential for voiding your warranty or at the extreame, breaking the law. These stability controls are being mandated like pollution control equipment, I'm not sure what the fines are for tampering with it but it may not be worth it. I'm sure Chrysler would love to find evidence that you've intentionally disabled a safety feature on the truck.
 
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Old Sep 22, 2009 | 03:38 PM
  #35  
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Thank you sarguy, it sounds as if I tossed mine to far too quick I guess or it has to do with the darn 3.55 open diff.
I agree with you that I would like the option of turning off everything related to the ESP except for the ABS if I want to. Like you I normally drive with the ESP on.
I also say that I am not going to disable it fully unless dodge gives us a way to disable the ESP like I heard they have on the SRT8 Challenger.
 
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Old Sep 22, 2009 | 04:16 PM
  #36  
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Originally Posted by sarguy01

ESP, when on, does quite a bit. I tested it in the snow when I first got the truck. As soon as I started going sideways, ESP kicked in and dropped RPM's. When I took it partially off, I was able to fishtail significantly.

I got the truck a little sideways this time to see what the limits of ESP partially off really were. This time I tried a wet road since there is more traction then with 4" of snow. With ESP on I would have never gotten as far sideways as I did. I have no intentions of getting my truck sideways again unless it is to test the ESP.

As far as acceleration is concerned, if the brakes are being applied to a wheel because it is spinning, it is inhibiting that wheel from its full potential. Now, I am fully aware that if the wheels were allowed to spin, without any input from traction control, that they will most likely just spin, spin, and spin some more and my acceleration may actually be less.

But, say I was at a track, with the tires aired down, and was able to get traction with only a slight amount of spinning. If that slight spinning activated the traction control then forward acceleration may be less then what it would be without the use of traction control on.

ran jr, I am really confused by what you are asking me. I have the 3.92 limited slip. But, a limited slip will sometimes still allow the wheels to spin at different rates. It is not a locker or a spool. Hence the name, LIMITED SLIP. So, the rear wheels can still be braked individually by the traction control if the truck senses that one wheel may be slipping.

There is also input from the steering wheel position sensor that will tell the truck if it is merely loosing traction in a straight line or if it going sideways. So, if the steering wheel is straight, ESP is partially off, and I floor it, traction control will apply the brakes to the rear wheels if they are spinning.
I also was testing the same thing you did after reading your post. Today it rained here as i was on a back road, slowed down pushed the ESP button (part. off) pushed the gas and of course tires spun, but with my truck when speedo hits 40 MPH the ESP light flashes on the dash and engine power drops. Then I tryed to put ESP back to normal (full on) it wouldn't turn off, shifted trans to N and then I could turn it off. Don't know if that is part of the system or what. I like/dislike the ESP system just my .02 cents.
 
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Old Sep 22, 2009 | 04:18 PM
  #37  
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Originally Posted by ran jr
By all means do what you want. I'm just trying to save you a little time and potential for voiding your warranty or at the extreame, breaking the law. These stability controls are being mandated like pollution control equipment, I'm not sure what the fines are for tampering with it but it may not be worth it. I'm sure Chrysler would love to find evidence that you've intentionally disabled a safety feature on the truck.
Voiding warranty? Maybe.

Breaking the law? Fines? You have to be kidding. Show me proof.

I am positive Chrysler will not find anything done to my truck since there is nothing done to my truck.

You are obviously upset at the thought of turning off ESP. This thread is a discussion of it, not instructions on how to disable it. I urge you to move on to other threads since you have really provided nothing that pertains to this thread other then the fact that you don't think anybody should ever disable anything that came from the factory.
 

Last edited by sarguy01; Sep 22, 2009 at 04:25 PM.
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Old Sep 22, 2009 | 05:06 PM
  #38  
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We should be able to turn it fully off. Typical government mandate. Because some don't know how to drive, we must all get ESP rammed down our throats. I've seen infinity and lexus ads that pretty much imply that the car will drive itself whenever the driver desides to put his head up his ***.

I don't know if there is ever going to be a way (short of jerry rigging something) to fully disable it and keep the ABS operational. Looking on Diablo's site, it seems that even when you turn it off through the PCM it kills the ABS. I don't really care about ABS. I pay attention and drive slow through residential areas, but the dash being lit up like a Christmas tree kind of bugs me. Fooling the PCM into thinking that 4wd is engaged is creative, but I'd be willing to bet that it uses that input for other routines.

A while back I was thinking a small PLC module that used the signal coming off the ESP switch to break the signal coming off the wheel sensors after holding the button down for a given period of time (5 secs). That way, the ESP could be fully enabled/disabled without have to crawl around in the wheel well to make the lights go away.

If I am not mistaken, disconnecting the sensors makes the ABS, brake, BAS, and ESP lights come on????
 
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Old Sep 22, 2009 | 05:08 PM
  #39  
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Originally Posted by mopowar
We should be able to turn it fully off. Typical government mandate. Because some don't know how to drive, we must all get ESP rammed down our throats. I've seen infinity and lexus ads that pretty much imply that the car will drive itself whenever the driver desides to put his head up his ***.

I don't know if there is ever going to be a way (short of jerry rigging something) to fully disable it and keep the ABS operational. Looking on Diablo's site, it seems that even when you turn it off through the PCM it kills the ABS. I don't really care about ABS. I pay attention and drive slow through residential areas, but the dash being lit up like a Christmas tree kind of bugs me. Fooling the PCM into thinking that 4wd is engaged is creative, but I'd be willing to bet that it uses that input for other routines.

I while back I was thinking a small PLC module that used the signal coming off the ESP switch to break the signal coming off the wheel sensors after holding the button down for a given period of time (5 secs). That way, the ESP could be fully enabled/disabled without have to crawl around in the wheel well to make the lights go away.

If I am not mistaken, disconnecting the sensors makes the ABS, brake, BAS, and ESP lights come on????
Yes, you will get a lot of lights. I want to have no trouble lights if I ever choose to turn it off.
 
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Old Sep 22, 2009 | 05:57 PM
  #40  
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Originally Posted by sarguy01
You are obviously upset at the thought of turning off ESP. This thread is a discussion of it, not instructions on how to disable it. I urge you to move on to other threads since you have really provided nothing that pertains to this thread other then the fact that you don't think anybody should ever disable anything that came from the factory.
Ok, sorry I don't agree with your "discussion" or lack there of. You just want to hear your side of it. I explained how the ESP worked in this thread before you did and pointed out that fully disabling it would in no way help acceleration only hinder it. In fact there have been many people agree with what I'm saying. You've got everyone confused because we don't know what you're trying to accomplish, do you want to drag race, drift, what???

Looks like you're the one upset because Chrysler put a Government Mandated safety device on your precious truck and you don't like it. Have you already removed the Air Bags??

I'd like to go ahead and calls dibs on your rear axle with the 3.92s for when you wrap you truck around a tree just to prove you can rig up a way to bypass the ESP. I just pray you don't kill anyone in the process. And please don't drive like this with you kid(s) in the truck.
 
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