Attesa system - 4x4 all-wheel drive (4WD)

Attesa system

The automotive world is full of abbreviations. Starting from engine markings, gearboxes to electronic systems. Every manufacturer is trying to come up with a new, revolutionary abbreviation. Fortunately, wise people agreed on the norms of labeling metric units like horsepower or NM. They have not yet managed to bring automakers into order to create a unique register of abbreviations for automotive systems, so today e.g. a common rail diesel marking system from one manufacturer named D4D, another CTDi, third dCI, etc. is Nissan's Attesa system. You will most often find her in literature related to the anthology name Skyline GT-R, although there are other Nissan models that have had this system built in.

Let's start with the name of the system. The acronym is that a new, sometimes revolutionary, solution to a rather long name could be reduced to something more drinkable, and above all in typing and expression more acceptable. ATTESSA is originally an abbreviation of the English words "Advanced Total Traction Engineering System for All-Terrain". In layman's terms, it is a 4-wheel-drive (4WD) system developed by Nissan and fitted, in addition to models from the Nissan pallet and into vehicles of Nissan's luxury Infiniti division. For those interested in learning more about the ATTESA system itself, I can find all the information at Wikipedia.
My story will be about the ATTESA-ETS system built into the Nissan legend - the Skyline GT-R, in the most famous models such as the R32, R33 and R34.

Much to the chagrin of all connoisseurs and lovers of these models, we do not have a single copy on Serbian roads (registered in Serbia). There was a specimen of R33 in silver that cruised through the streets of Belgrade. Unfortunately in the non turbo GTS option, which does not have this system.

This is the specimen in question, so far there has been no information that it has been spotted. These photos are several years old.

That doesn't stop us from learning and learning about this now cult model, and the systems built into it, which is why it deserved the nickname Godzilla.
Since you were initially educated via Wikipedia, which I am specifically talking about here, I will deal below with the operation of the system itself, as well as all user errors. As practice has shown, the complete system of the case itself and the fins are very well designed by Nissan. Housed in an extremely compact body (we know that the mass is the biggest enemy of performance), this system, if not driven "dry" or at a minimum, will rarely cause problems. Of course, everything has its limits, so if this system is used in drag racing, where the engine power (280 hp) is increased double or triple, failure or breakage of the assembly will occur. There is a term in the English language for well-designed things, which suffer even twice the power of the bulletproof design. We can safely say that the ATTESSA system is one of them.

The Attesa system is first and foremost a conventional and fairly simple 4-wheel power transmission system. You all know the super car of the eighties - Porsche 959. In fact, the ATTESSA system is a sophisticated system from the racing Porsche 959. Even today, 20 years since the premiere of the system, it still delivers great performance and can handle much more modern solutions, where electronics play a bigger role than before. twenty years earlier. We will be dealing with the ATTESA-ETS system, carried by Skyline GT-R models, first introduced in 1989 with the promotion of the R32 generation.

Attesa system

There is one thing that is not unique to our people, and can be applied to vehicle owners with this system. Read the user manual. The system can be well designed, but if the use of the system itself is improper, there is no such thing as failure to cancel obedience. From the experience of well-known tuner workshops specializing in GT-R models, 75% of failures are solely due to improper maintenance by vehicle owners.
Problems range from incorrectly installed aftermarket parts, oil of the wrong gradation, to mis-connected components leading to the fracture of gears in the housing and the blades inside.

Attesa system

With the GT-R model, all three of the most famous generations (R32, R33 and R34) have different software. This is logical, because the system was constantly improving, ie. his brain (ECU). The best evidence is the track wins in the legendary JGTC Championship.

The heart of the ATTESA-ETS system is the ATTESA Power-Pack unit, located immediately after the gearbox. Admittedly, since it has a longitudinally mounted motor (RB26DETT), the rear drive is logical, but a front drive has been added here.