Wavetrac being installed
#52
MBWorld Fanatic!
with wavetrac when you "WOT" it...does it hookup or does it cut power for 2-3 seconds? If it hooks up without losing traction..it's better then the OEM OEM LSD cuts power no matter what if you WOT it even with brand new tires ..unless you turn ESP OFF but you run the risk of doing donuts then
#53
maybe my OEM LSD is screwed up, doesn't make any noises though...if i floor it, the tires just break loose and the ESP light blinks like crazy (in esp sport) and then the power gets cut for a few seconds...thats not normal you're saying?
#54
MBWorld Fanatic!
Yes, it helps with power laydown in straight-line situations, but for me it's most important in helping connect all that power on twisties. I live on a mountain road with a few badly banked curves. There are some where my ESP light would come on unless I really slowed down. Now, I can actually accelerate through those curves with complete control.
#55
MBWorld Fanatic!
It's your ESP cutting power, not the differential. Why is your traction so bad is the question. Tires? Are they in good shape. Stock size? Larger rears than stock could be throwing off the ESP calibration and making it jittery.
#56
tires are good shape...using p-zero neros...better then the PSS..my car just ate the PSS's apart they crumbled within like 2-3 months, that was on stock rims too..right now I'm on VS-160 20's so yeah it's a bit larger for sure..285 in the rear 25 series tire
#57
If works when ever there is a load/traction differential
a line or a curve
On corners even at low speed I'd get slip
No more
Just hooks and goes
The power is applied more uniformly and smoother
It seems to help steer the rear around corners
Well worth the money and the car is much improved with it
a line or a curve
On corners even at low speed I'd get slip
No more
Just hooks and goes
The power is applied more uniformly and smoother
It seems to help steer the rear around corners
Well worth the money and the car is much improved with it
#58
MBWorld Fanatic!
http://www.tacomaworld.com/forum/tir...5r18-285-25r20
For proper ESP operation (and even wheel geometry) it's recommended to stay under 1%. Anything over 2% will convince the ESP that you're skidding when you're not because the front and rear wheels are not moving at the same speed (according to its computer).
You can either get below 1% or see if somebody with the right Star equipment will recalibrate your ESP.
#59
That's your problem. Those tires are 2.3% bigger than stock.
http://www.tacomaworld.com/forum/tir...5r18-285-25r20
For proper ESP operation (and even wheel geometry) it's recommended to stay under 1%. Anything over 2% will convince the ESP that you're skidding when you're not because the front and rear wheels are not moving at the same speed (according to its computer).
You can either get below 1% or see if somebody with the right Star equipment will recalibrate your ESP.
http://www.tacomaworld.com/forum/tir...5r18-285-25r20
For proper ESP operation (and even wheel geometry) it's recommended to stay under 1%. Anything over 2% will convince the ESP that you're skidding when you're not because the front and rear wheels are not moving at the same speed (according to its computer).
You can either get below 1% or see if somebody with the right Star equipment will recalibrate your ESP.
#61
MBWorld Fanatic!
It's the rolling diameter (the "height" of the tire). You can plug in different sizes using that calculator link and as long as the diameter difference is less than 1% vs. the stock size, you'll be ok. If you still have the stock wheels, you can swap those back on and confirm the problem goes away. I'm sure it will.
I always say that if a different tire size worked better, AMG would have gone with it.
I always say that if a different tire size worked better, AMG would have gone with it.
#62
MBWorld Fanatic!
Right. All the 1% recommendations that I posted are fantasies. And the members with this problem (this is not the first such thread) are unicorns.
This member can go back to stock as an experiment. When his traction control problem goes away you can add him to the conspiracy.
This member can go back to stock as an experiment. When his traction control problem goes away you can add him to the conspiracy.
#64
Link to bosch engineering handbook
Section on tcs
Slip is 5 to 15% before engagement
2% difference is moot
https://mbworld.org/forums/attachmen...9&d=1398864048
Section on tcs
Slip is 5 to 15% before engagement
2% difference is moot
https://mbworld.org/forums/attachmen...9&d=1398864048
#65
MBWorld Fanatic!
I hope we get a followup from the member.
#66
Not my postion
It is technical fact, I did not write the bosch handbook
It is everyone's who understands it
If the system engaged at 1% the car would be indrivable
At 60 mph there is 3% slip ie difference between static od and rev/ mile
The tire changes >1% with 5 psi pressure
It changes or 'grows' with rotational speed
It is technical fact, I did not write the bosch handbook
It is everyone's who understands it
If the system engaged at 1% the car would be indrivable
At 60 mph there is 3% slip ie difference between static od and rev/ mile
The tire changes >1% with 5 psi pressure
It changes or 'grows' with rotational speed
#67
8/32 x 2 = 1/2"
1/2 / 25 = 2%
Do not be ashamed to admit you just don't understand
It's the first step
An open mind can be filled with knowledge
A closed one, well....
Btw: in the tcs software there is no parameter for tire dimensions
It doesn"t 'care'
Only looks at slip, yaw , throttle position, steering angle, etc
If 1% made a difference every turn would set it off
The wheels are turning at different speeds
#68
MBWorld Fanatic!
#69
So we have something in common
Neither of us know
And something not in common
I know I don't know
You don't know that you don't know
You are at least certain in your error
But I do know this
Mine was installed better
And John Shepard knows infinitely more about gear boxes than you
Heck, you don't even know shims may be required if the carrier has end play
And they go on each side
The MB site shows shims to adjust carrier side to side play
Neither of us know
And something not in common
I know I don't know
You don't know that you don't know
You are at least certain in your error
But I do know this
Mine was installed better
And John Shepard knows infinitely more about gear boxes than you
Heck, you don't even know shims may be required if the carrier has end play
And they go on each side
The MB site shows shims to adjust carrier side to side play
Last edited by Ingenieur; 05-26-2014 at 04:31 PM.
#71
No doubt
You were mot even aware that shims may be required depending on wear
He 's built 1000"s of gear boxes
You hacked one together
Do the math
Are you saying you lnow more than him about gear boxes?
Now that deserves an 'oh really'
If ignorance is bliss you must be a laughing fool
You were mot even aware that shims may be required depending on wear
He 's built 1000"s of gear boxes
You hacked one together
Do the math
Are you saying you lnow more than him about gear boxes?
Now that deserves an 'oh really'
If ignorance is bliss you must be a laughing fool
Last edited by Ingenieur; 05-26-2014 at 04:46 PM.
#72
MBWorld Fanatic!
Have no fear. I understand everything you say. Often I just don't understand why you say them.
The manual includes this note:
Only use wheels with the recommended
tire sizes. Only then will ESP® function
properly.
Any idea why they say that? (Page 67 in the 2013 C-class manual.)
The manual includes this note:
Only use wheels with the recommended
tire sizes. Only then will ESP® function
properly.
Any idea why they say that? (Page 67 in the 2013 C-class manual.)
#73
Have no fear. I understand everything you say. Often I just don't understand why you say them.
The manual includes this note:
Only use wheels with the recommended
tire sizes. Only then will ESP® function
properly.
Any idea why they say that? (Page 67 in the 2013 C-class manual.)
The manual includes this note:
Only use wheels with the recommended
tire sizes. Only then will ESP® function
properly.
Any idea why they say that? (Page 67 in the 2013 C-class manual.)
Apparently beyond your grasp
Within a tolerance
And it 's not 1%
A 2% wear difference occurs
Are you saying the system senses wear?
#74
Btw
It says same size as in the techical specs
NOT diameter
So a wider tire with oem od will foul the system
Hogwash
Oem winter tires are 2% smaller in the front
So the tcs is fouled when you need most?
Using oem spec'ed tires no less
It says same size as in the techical specs
NOT diameter
So a wider tire with oem od will foul the system
Hogwash
Oem winter tires are 2% smaller in the front
So the tcs is fouled when you need most?
Using oem spec'ed tires no less
Last edited by Ingenieur; 05-26-2014 at 04:59 PM.
#75
with wavetrac when you "WOT" it...does it hookup or does it cut power for 2-3 seconds? If it hooks up without losing traction..it's better then the OEM OEM LSD cuts power no matter what if you WOT it even with brand new tires ..unless you turn ESP OFF but you run the risk of doing donuts then
If the tires spin it cuts power/reduces torque
The lsd has nothing to do with this
Niether does tire od
Even launch control systems allow a bit of slip until rolling
5 to 7% seems to be the sweet spot
Keeping it there is difficult
Different tcs settings ( normal vs sport) increase the limits or allowable slip/yaw/etc
Maintaining the front/rear tire od ratio is far more important than absolute od
Last edited by Ingenieur; 05-26-2014 at 05:12 PM.