Are R32 Gtr's Awd Or Not???

[SIR33]

hey guys, are these AWD like WRX's or i have heard they only engage AWD when they lose traction??? someone explain this to me please.

[blind_elk]

GT-Rs are perhaps best described as "intelligent" 4WD.

Subarus, Lancers, and the like are basically FWD that also feed (constant) drive to the rear wheels.

GT-Rs on the other hand are RWD, and feed some drive to the front wheels when the system detects a need to do so. Not simply when (rear) wheel slip is detected, but also when cornering forces indicate a need for some FWD.

[SIR33]

anybody know the situation here???

[Warpspeed]

The GTR and GTS4 4WD system is unique to Nissan. There is no centre diff as in most other 4WD systems.

The way it works is that it behaves like a normal RWD most of the time, and under certain conditions, there is a clutch that will feed torque to the front wheels.

I believe the computer that controls the 4WD clutch looks at throttle position, as well as lateral and longitudinal accelerometers, and relative front/rear wheel speeds, and decides how much torque to feed to the front wheels.

It combines awsome straight line traction, but has none of the corner entry understeer of a full time 4WD. It is a very good highly developed system far better than full time 4WD.

Full time 4WD is probably better in mud, dirt, or snow, but the GTR system is more suited to driving on wet or dry sealed roads. It was made to win races, not drive around paddocks.

[Sydneykid]

Hi SIR33, Warspeed covered it pretty well. I would only add that a GTR can have 100% torque to the rear wheels, whereas a front wheel drive based all wheel drive (Sub, Mitsi, VW, Audi etc) can only ever have a maximum of 40% of the engine's torque available to the rear wheels.

Since acceleration and cornering weight transfer is to the rear or diagonal, a GTR will always have higher traction capacity regardless of the suspension set up.

The Evo V111 (some 14 years after the R32 GTR) is the only car that even comes close. Notice "close" not "as good".

Hope that adds to the previous posts

[Zensoku]

This probably explains why alot of PRO-GTR drag racers are having a hard time getting the right setup with the correct torque split for the 4WD. There are plenty of GTST RWD's running quicker times than their GTR equivalents. This is something that HKS struggle with on their car too, apparently. Because all of those drag RWD suspension and tyre setups go out the window as soon as you try to do it on a 4WD.

[Sydneykid]

Hi Zensoku, a lot of the fast GTST's run drag slicks, whereas a lot of the fast GTR's run street legal radials. There is a huge difference in traction and launch torque handling capacity between a proper drag slick and a radial.

Then there is the weight factor, it takes a lot of extra power to overcome a 250 kg weight handicap.

Hope that adds to the thread

[cobo_11]

just to add (don't know if it's relevant or not) but R32 GTR's can be put in just RWD by removing a fuse.