VSC = type of limited slip?
- Thread starter trdtim
- Start date
Register to hide this ad
cpayne5
New member
trdtim said:
No, VSC is vehicle skid control.
I think what you're probably meaning to compare a limited slip to is ATRAC, which uses the brakes to manipulate an open differential to give wheels with traction the power under certain conditions.
Check this out:
http://www.toyota120.com/forum/showthread.php?p=255
CPayne5 is correct. In a nutshell the ATRAC system relies on open differentials to simulate a limited slip differential using brake modulation. Keeping in mind that torque will travel the path of least resistance (to a wheel with the least amount of grip), the system applies the brake to the spinning wheel(s), effectively transferring the torque to the wheels with the grip. This torque may be transferred across axle, or even front to back via the center differential. Hope this helped.
Thai
Elite Member
2wd models will have ATRAC on the rear axle only.
For 3rd gen 4runners (1996-2002), ATRAC was present on 2001-2002 models.
"Automatic limited-slip" = new marketing slang for ATRAC used by Toyota and other manufacturers.
VSC = vehicle slip control; it prevents oversteer and understeer...basically, it keeps you on your intended path.
For 3rd gen 4runners (1996-2002), ATRAC was present on 2001-2002 models.
"Automatic limited-slip" = new marketing slang for ATRAC used by Toyota and other manufacturers.
VSC = vehicle slip control; it prevents oversteer and understeer...basically, it keeps you on your intended path.
Thai
Elite Member
trdtim said:
4wd 4runners = ATRAC on all 4 wheels which is equivalent to having LSD (limited slip differential) on both front and rear axles. Your center differential is also LSD (Torsen LSD). So, basically, you have 3 "LSDs" on your 4wd 4runner.
2wd models = ATRAC only on the rear axle which is equivalent to having a LSD in the rear axle.
Although ATRAC and LSD are two different thing, they FUNCTION (in practical terms) similarly...aka, they help your 4runner move forward over poor traction surfaces. Therefore, auto manufacturers are using these terms interchangeably to confuse consumers into thinking that their car has some new advance technology, when this technology has been on cars since the late 90's in Land Rover Discovery and Mercedes ML.
Yeah, and since 99.9% of all 4Runners made never do any serious off-roading, there's no reason not to have it as an option you can add on to it.
With most GM trucks, you can add an LSD for only a couple hundred bucks... Not that I like GM in the slightest, but I don't see why Toyota couldn't do that.
Ricky
With most GM trucks, you can add an LSD for only a couple hundred bucks... Not that I like GM in the slightest, but I don't see why Toyota couldn't do that.
Ricky
Here's my thoughts,
I just picked up a 05 sport v6, traded in a bmw. Now I have been driving rwd cars in the snow for the past 15 years. I got my 4runner to the end of the drive this afternoon and I was stuck in 3" of snow. The driver side wheel had traction, the passenger side had none, almost as if on ice. In 2wd, i mashed the pedal and nothing, the computer was trying (I guess) to get me moving. After putting in reverse and getting out ot he rut, I was able to move forward and get unstuck.
If I had one of my previous cars w/ rwd and lsd, I would have had no issue.
I hate to be forced to use 4wd to move about when 2wd with a lsd would be sufficient.
I still miss my 93 BMW, last year before traction control and last w/ lsd. I used to joke that my right foot was my traction control. Still feel it does a better job than the computers that are in todays cars.
I just picked up a 05 sport v6, traded in a bmw. Now I have been driving rwd cars in the snow for the past 15 years. I got my 4runner to the end of the drive this afternoon and I was stuck in 3" of snow. The driver side wheel had traction, the passenger side had none, almost as if on ice. In 2wd, i mashed the pedal and nothing, the computer was trying (I guess) to get me moving. After putting in reverse and getting out ot he rut, I was able to move forward and get unstuck.
If I had one of my previous cars w/ rwd and lsd, I would have had no issue.
I hate to be forced to use 4wd to move about when 2wd with a lsd would be sufficient.
I still miss my 93 BMW, last year before traction control and last w/ lsd. I used to joke that my right foot was my traction control. Still feel it does a better job than the computers that are in todays cars.
In offroading situations, ATRAC has the potential to be better than LSD.
Zero traction at one wheel * LSD does not equal traction at the other wheel. LSD needs some traction to work.
ATRAC does not care that you freewheel in the air...it will still have the ability to send traction to the other side.
Zero traction at one wheel * LSD does not equal traction at the other wheel. LSD needs some traction to work.
ATRAC does not care that you freewheel in the air...it will still have the ability to send traction to the other side.
Last edited:
cpayne5
New member
Falls said:
I can vouch for him in this situation. When in 2wd with stock tires, the traction control is aweful. Basically, if neither tire has 'traction' it will cut engine power. You can have the pedal on the floor and it will just idle with no wheel spin. I hate it. I haven't encountered this problem since I got my new tires, though.
Similar threads
