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You would need to speak to unique1 about the finer details of the differences, but I can defininately say that after having to replace my front driveshaft, there are a LOT of differences between the GTR and stagea attessa systems. I have never directly compared the clutch p[acks from a gtr to that of a stagea, but I think that looking at the rest of the main components (driveshaft, diffs, rear cradles etc etc etc) I can't see Nissan using the same transfer case internals. Why would you bother upgrading the capacity of the diff's, and then not upgrading the system that delivers power to it?

I am not saying that the atessa system will be the weak point in the case of power upgrades (that honour would have to go to the auto) but I just don't think I would place that much faith in it.

As for the Autech, I had always just assumed that due to using the GTR gearbox, the GTR transfer would have come along for the ride as well.

.....I am not saying that the atessa system will be the weak point in the case of power upgrades (that honour would have to go to the auto) but I just don't think I would place that much faith in it.

....

disagreement !!!! the auto box is VERY strong

capable of living with 300rwkw, daily, for over a year, as proved by a couple of members

the auto box should never be underestimated, they are as strong as an Ox

;)

Having 4wd turned on makes a different off the line, it is definetly noticeable.

Not a huge difference but you can feel it, then sensation i can describe is it

feels like the car is more spritely, or lighter taking off.

I would hazard a guess that because the power to the wheels is distributed evenly and

with equally distributed driving force/torque, this will make it easier to shift the heavy

unit that is the Stagea.

As opposed to 2wd where the the load and driving force is at 2 points therefore will require more

force to move off at the same speed. You also notice the rear of your car squats a little as the

suspension and driveline takes up the initial torque as the power gets to the rear wheels.

ie. to use an analogy imagine two people pushing the car along from the rear, then adding two people

to push/pull at the front, heck of a lot easier.

I've found that when the car is loaded up a bit, using the 's' button seems to make it drive easier...but I never tried that for very long (and obviously wouldnt' recommend it for a long trip).

+1 for the strength of the auto. I believe Nissan is best known for its bullet-proof drivelines and gearboxes. Most Nissan 4WD owners will know that the gearbox and 4WD systems are very good :rofl:

Just to clarify... Pressing that S button. It doesnt activate ATESSA and have constant 4wd. It just just changes it so when the ATESSA IS asked to kick in, it sends equal power to all wheels..

Correct?

Also I've noticed when the S button is on, When I switch the car off, the car will do a subtle lurch forward. Everyone else experience this? (It doesnt happen when S is turned off)

Just to clarify... Pressing that S button. It doesnt activate ATESSA and have constant 4wd. It just just changes it so when the ATESSA IS asked to kick in, it sends equal power to all wheels..

Correct?

Also I've noticed when the S button is on, When I switch the car off, the car will do a subtle lurch forward. Everyone else experience this? (It doesnt happen when S is turned off)

It will drive basically as a 50:50 awd - ie. constant. The only thing to remember is its NOT the same as the constant awd used in most other vehicles (ie. subaru wrx, mitsubishi lancer evo etc). Its just telling the computer to prefer 50:50 torque split instead of 5:95 (F:R). The computer will still override the "preferred" torque split if it feels it needs to, and so even in 50:50 mode if you're cornering fast etc. it may choose to transfer torque to the rears...but as the g-forces decrease and things return to normal, it will work its way back to 50:50. On the other hand, when the button is OFF, it prefers 5:95, and will transfer torque to the front as needed, but take the pressure off and it will work its way back to 5:95.

Clear as mud?

hehe thanks. so its constant. Clear

What does it mean when the "4WD" light comes on thats next to the "S" Light?

This light will light up when you first turn the car on and then turn off a second later. This is normal.

But if it turns on later or stays on while you are driving etc. it may mean you have a faulty sensor or blown fuse (hopefully) or issues with the AWD system (called ATTESA - Advanced Total Traction Electronic System for All). People who disconnect the front drive shaft and take out the fuse will have the light on all the time. Pretty sure its the fuse that would do it - best to check it out straight away because the system isn't designed to run like this for too long. Puts strain on the clutch packs etc.

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