Traction control

[walt1227]

So I just got my M56S on Monday and trying to get use to the power. Today I decided to turn traction control off put it in sport mode and power brake it to see if it would spin from hole shot. All it did was zip down the road without spinning. Will these cars break loose without being on an angle or do they not spin period? It is weird because I drove a M37 non-sport and when I power braked it that baby boy would spin with no problem.

[DRM56]

Oh yeah she will break traction all day long. If I turn my traction control off at a red light and nail the gas it will spin. Just keep playing around with it and u will get the hang of it. I spunderstand my wheels so much it threw my TPMS monitors off. Lol

[walt1227]

Lol. I'll keep trying.

[DRM56]

http://www.youtube.com/watch?v=qiNlKEqzQmg

.....check this youtube video out

[walt1227]

https://youtu.be/qiNlKEqzQmg.....check this youtube video out

Can you repost it link not working.

[DRM56]

Link won't load for some reason but go to youtube and search infiniti m56 burnout

[Ilya]

Fixed your link.

Back to the topic...the M56x will not spin no matter what happens. Only in snow. VDC/Traction even when off is insane...I hate it.

[walt1227]

Fixed your link.

Back to the topic...the M56x will not spin no matter what happens. Only in snow. VDC/Traction even when off is insane...I hate it.

Yeah I don't think that X will ever spin because of the setup. I'm sure it will pull harder off the line than the S though. It would be cool if some members would race the X versus the S so we can see which one is the fastest from hole shot.

[armybrat]

Yeah I don't think that X will ever spin because of the setup. I'm sure it will pull harder off the line than the S though. It would be cool if some members would race the X versus the S so we can see which one is the fastest from hole shot.

Yep...this is why.

From the owner's manual: "When the VDC switch is used to turn off the system, the VDC system still operates to prevent one drive wheel from slipping by transferring power to a non slipping drive wheel.... All other VDC functions are off, except for rise-up and build-up and brake force distribution (if you have the Active Trace Control which is part of the Tech package)

RISE-UP AND BUILD-UP
The system gradually adjusts braking
power during normal braking to help
provide an enhanced brake feel.
BRAKE FORCE DISTRIBUTION
During braking while driving through turns,
the system optimizes the distribution of
force to each of the four wheels depending
on the radius of the turn.

More thorough explanation of the Attessa ET-S AWD, from Wiki:
"The Electronic Torque Split version of this all-wheel drive architecture is a more advanced system developed for Nissan vehicles with a longitudinal drive train layout. It was first used in August 1989 in the R32 Nissan Skyline GT-R and Nissan Skyline GTS4. Although the Skyline GT-R is exclusively AWD with manual transmission, ATTESA E-TS is also used in Nissan models that are available as rear wheel drive (RWD) with automatic transmissions fitted, such as the A31 Nissan Cefiro which was the second Nissan to feature the system exactly a year later in August 1990, and vehicles based on the Nissan FM platform (which are sold in certain markets under the Infiniti luxury brand).

The ATTESA E-TS version uses a mostly conventional RWD transmission. Drive to the rear wheels is constant via a tailshaft and rear differential, but drive to the front wheels is more complex by utilizing a transfer case on the rear of the transmission.

The drive for the front wheels comes from a transfer case bolted on the end of an almost traditional Nissan RWD transmission. A short driveshaft for the front wheels exits the transfer case on the right side. Inside the transfer case a multi-row chain drives a multi-plate wet clutch pack. Drive from the chain is apportioned using this clutch pack in the transfer case "differential" (the system thus does not involve a regular gear differential as in a full-time 4WD layout, but rather a center clutch), similar to the type employed in the Steyr-Daimler-Puch system in the Porsche 959. This unit is lubricated with its own dedicated NS-ATF fluid supply (Nissan Special Automatic Transmission Fluid) and is not in any way connected to the fluid in the transmission. Some Nissan models have an external cooler with an electric pump to cool this fluid.

Situated on top of the rear differential is a high pressure, low volume electric pump. This pump pressurizes Normal ATF (0-288 psi) into the transfer case to engage the clutch pack. This fluid only engages the clutch pack and does not mix with the NS-ATF lubricating the tranfercase. The higher the fluid pressure the transfer case is supplied with from the pump, the more the clutch pack engages, enabling the torque to the front wheels to be varied. Exiting the transfer case, the front drive shaft runs along the right side of the transmission, into a differential located on the right of the engines sump. This is a cast aluminum unit, with the sump and front differential made as a single unit that cannot be separated. The front right axle is shorter than the left, because the differential is closer to the right wheel. The front left axle runs through the engine's sump to the left wheel.[1]

To control the ATTESA E-TS system, there is a 16-bit computer that monitors the cars movements 10 times per second to sense traction loss by measuring the speed of each wheel via the ABS sensors. Also a three-axis G-Sensor mounted underneath the center console feeds lateral and longitudinal inputs into a computer, which controls both the ATTESA-ETS 4WD system and the ABS system. The computer can then direct up to 50% of the power to the front wheels. When slip is detected on one of the rear wheels (a rear wheel turn 5% or more than the front wheels), the system directs torque to the front wheels which run a non-limited slip differential. Rather than locking the AWD in all the time or having a system that is "all or nothing", the ATTESA E-TS system can apportion different torque ratios to the front wheels as it sees fit. This provides the driver with an AWD vehicle that performs like a rear wheel drive vehicle in perfect conditions and can recover control when conditions aren't as perfect.

From the factory, the system is set up to provide slight oversteer in handling, and in fact the harder the car is cornered, the LESS the 4WD system engages the front wheels. This promotes the oversteer rather than understeer which is apparent in most AWD/4WD vehicles. The advantage to a more traditional ATTESA (Viscous LSD) system is response in hundredths of a second.

Some models fitted with the ATTESA E-TS system (such as the Nissan RS4 Stagea) have a "S" button on the dash. This will bypass the control system of the ATESSA E-TS computer and lock the transfer case into full 4WD. This is to be used at low speeds in snowy/icy conditions only as understeer is greatly increased in this mode" This is not to be confused with the "SNOW" mode on the drive selector. This function only limits engine output to avoid wheel spin; nothing to do with AWD function.

Anyway, the AWD model weighs 196 lbs more than the RWD. With that said, from 0 - 60mph, the X will be a little slower, maybe 0.2 seconds. After that though, they're pretty much the same.

[walt1227]

So I decided to try again on my way to work this morning. Traction control off and in sport mode. It chirped the tires a little bit and got on down the road. It's weird to me that these cars are setup in such an odd way. I'm use to being able to power brake a car and make it spin anytime I want. However, it is still a good thing the way these cars are setup because it gives an advantage in a drag race from hole shot because it barely spins. If only we could eliminate that few milliseconds lag on take off that would fix the non spin issue. I love my car and now I am getting more power hungry just for take offs when using sport mode. I drive it in eco mode 90% of the time because I like how it keeps the power to a minimum. In sport mode it is over powering from a torque standpoint.

[Ilya]

Dred has an M56s and I have an M56x and we live in the same city...don't know him personally though. Maybe one day we'll come across each other and do a dig lol.

That being said, the only way I can break the rear end loose on this car is after leaving the car wash (and that's only happened like 3-4 times in 100 tries lol) or around a round-a-bout when the road is wet and even that is only 50% of the time. The Infiniti AWD system in the snow is AMAZING...but when I want to have fun, it's downright terrible in that it will NOT relinquish control of the car lol. I wish it had a FULL OFF button.

[walt1227]

Dred has an M56s and I have an M56x and we live in the same city...don't know him personally though. Maybe one day we'll come across each other and do a dig lol.

That being said, the only way I can break the rear end loose on this car is after leaving the car wash (and that's only happened like 3-4 times in 100 tries lol) or around a round-a-bout when the road is wet and even that is only 50% of the time. The Infiniti AWD system in the snow is AMAZING...but when I want to have fun, it's downright terrible in that it will NOT relinquish control of the car lol. I wish it had a FULL OFF button.

Lol make it happen guys!!

[DredM56]

I don't have an S actually. I have an X. Almost bought an S but was worried about not having awd for the winter. It also had like 20kmi more on it for same price.

With traction control off from a stand still making a hard turn I can break it loose. Around corners I can get it sideways too which unfortunately I think f*** up the ball joint in the control arm up front

[Ilya]

I don't have an S actually. I have an X. Almost bought an S but was worried about not having awd for the winter. It also had like 20kmi more on it for same price.

With traction control off from a stand still making a hard turn I can break it loose. Around corners I can get it sideways too which unfortunately I think f***ed up the ball joint in the control arm up front

Oh, could have sworn it said M56S under your profile but I might have been quickly glancing at someone else's info.

When I pull out of Hoffman's in Latham (or Central) with wet tires and VDC off, I can get the rear to step out like 1% of the time. But I'm also in M1, not regular auto...not sure if that makes a difference. It almost always bogs for a second and then I can feel VDC still take over and then it finally gives it the beans once the car is almost straight. I hate it.

[DFW2011M56S]

My 2011 M56S had no problem breaking the tires loose bone stock in Normal mode with the traction control on. It would flash the slip light all the way through first gear. With mods and traction control off it spins clear up to 60 mph and is still getting loose at 80.

This was bone stock.
http://www.youtube.com/watch?v=pd3NH9V_eZE

This was rolling into it gradually. 1 second quicker 0-80 than spinning.

I accidentally hit the zoom while steering on this one though.

http://www.youtube.com/watch?v=eeXX5tNewoI

I will say if it is hotter than 90°F both my M56 and the loaner Q50 I drove when mine was in for the timing chain recall cut the power way back after some aggressive driving. Its the oil temperature overheat logic.

[walt1227]

Man I am jealous mine have never burnt the tires like that. I get a chirp at best and it just goes.

[DFW2011M56S]

Man I am jealous mine have never burnt the tires like that. I get a chirp at best and it just goes.

I am actually jealous of you guys that can hook up and go!!! This was a clip I made the other day in what I call "Limp" mode. It fell on its face when I stood on it, got to 2,000 rpm and proceeded to slide sideways so badly I had to ease up on the go pedal.

http://www.youtube.com/watch?v=pT7zMA34yxc

[walt1227]

Man I am jealous mine have never burnt the tires like that. I get a chirp at best and it just goes.

I am actually jealous of you guys that can hook up and go!!! This was a clip I made the other day in what I call "Limp" mode. It fell on its face when I stood on it, got to 2,000 rpm and proceeded to slide sideways so badly I had to ease up on the go pedal.

http://www.youtube.com/watch?v=pT7zMA34yxc

Are you power braking it? Or stepping right on the pedal?

[DFW2011M56S]

I am actually jealous of you guys that can hook up and go!!! This was a clip I made the other day in what I call "Limp" mode. It fell on its face when I stood on it, got to 2,000 rpm and proceeded to slide sideways so badly I had to ease up on the go pedal.

http://www.youtube.com/watch?v=pT7zMA34yxc

Are you power braking it? Or stepping right on the pedal?

That was just stepping on it. Bog, Bog, Bog, at 2,000 rpm all hell breaks loose.

[DFW2011M56S]

This one was power braked at part-throttle to about 2,000 rpm with the traction control on. Went WOT the instant I came off the brake. Density altitude was about 3,000 ft on both of these runs and the oil temps were HOT. If you notice traction control was active clear into 2nd gear and you can hear it get rubber on the 1-2 shift. Runs are through the OEM mufflers too thought of making a run open cutouts but did not want to draw any more attention to my shenanigans and it was just spinning anyway.

http://www.youtube.com/watch?v=hEa2c93gB3c