Did you know...... ( GT-R's)

  • Thread starter Supra4eva
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Do you know, that Skylines AREN'T 4WD. Sounds silly i know. but im asking does anyone actually know why they are stated as 4WD. I know, i want to see how much we know people, feedback.... plz.
Ta.
 
I think basically everyone who posts quite a bit in this forum (car 'experts') knows they aren't. Skylines are RWD (90% rear, 10% front) when engaging in normal driving, but during slipping, the AWD system kicks in.
 
Your right in one way, They are RWD, and its the V-Spec system that kicks in the front wheels, if its computer reads that there is slip or not enough traction in any of the 4 tyres. its really smart. Have you seen pics of the "R35" Skyline GT-R prototype ?
 
Originally posted by Supra4eva
Your right in one way, They are RWD, and its the V-Spec system that kicks in the front wheels


Actually, it's the traction system, called ATTESA ET-S Pro. I even used to know what it stood for!

Have you seen pics of the "R35" Skyline GT-R prototype ?

Yes, and it's ugly as all hell.
 
0001.jpg


The front is absolutely hideous...
 
if it's 10% front, or anything% front, then it has to be listed as 4WD. all 4 wheels drive, don't they? sure, they don't all the time, but it doesn't say they do.

AWD = full-time 4WD
4WD = four-wheel drive
 
Originally posted by j2s
if it's 10% front, or anything% front, then it has to be listed as 4WD. all 4 wheels drive, don't they? sure, they don't all the time, but it doesn't say they do.

AWD = full-time 4WD
4WD = four-wheel drive

Well, that's not really a reliable guide - the terms tend to be used interchangeably. I think you'll generally find that AWD is for on-road use - but within that are vehicles that are typically front-drive - the Honda CR-V and the new AWD Volvo S70 - and don't allocate drive to the rear until slippage is detected - and vehicles that are full-time AWD, like my Subaru Liberty/Legacy, which cruises along at a 50/50 split front to rear (but again changes the allocation according to available traction), and Audi (if I recall correctly).

4WD tends to apply to your more traditional off-road type systems - like the LandCruiser and Nissan Patrol -where the 4WD is actually manually engaged, and in normal driving (i.e. on the road) the vehicle is rear drive.

If memory serves, guys, the Nissan GT-R system was actual licensed from Porsche's 959 variable torque split system.
 

This, and the red one before it, are at least two years old. Do a search on Google and you'll find similar info dated from 1999 to 2002, all identical. This is an unofficial Photoshopped version, made by someone who heard from someone who knows someone.... It's not a real image.


This is from 2000, before the G35 was considered for the US market. It's official, from the Nissan Japan website, and was a 3D rendering, but it never even made it to clay. Once Nissan decided to revise the Fairlady Z, they needed something to help reduce the costs. Thus the G35, which was derived from the bog-standard Skyline (which is just a RWD, inline-6, moderate-power coupe). But Nissan also wanted to move the Skyline upmarket, closer to Porsche than Mits's EVO. That couldn't be done with the then-current G35/Skyline platform...at least not cheaply. So a new platform was created: The GT-R. No "Skyline" name, just "GT-R". It could be a V8, a twin-turbo V6, hybrid...anything. None of that's even close to settled yet. Only the basic design, and electronically controlled AWD. So while Japan calls the G35 a Skyline (you can even see it on the Japanese website), it's nothing like the Skyline of GT2 fame.

Sorry to burst people's bubbles, but the grey-and-silver beast is close to what we're getting. Proof? It's from 2002, and it's been on tour to various shows. I, um, very much like it though.
 
I like the look of the new Skyline. ughh...that Gt-r concept is just...horrible.
 
Originally posted by M5Power
Ten percent front in the Skyline's case means around 27-33 horsepower. Try driving the "4WD" car on just its front wheels.

Well, we are talking 4WD with a variable split here - with a rear-drive bias. Hence the reason Skylines can oversteer under power.
 
That new Skyline is too...errmm.."American" for me...Doesn't look as cutting edge as the oh-so-beautful R-34!!

I mean, its not a bad car but the whole "rounded" look it's giving off looks like something Ford would do, not Nissan.

And I was always told it's 4WD when all four wheels are used to drive. And the Skyline uses more than 10 percent, well, the Nismo Skyline does but I'm not sure about stock.
 
please don't killme but i think the bonet (hood) look like a mustang (the last one case). don't killme please)
 
Personally I think the R34 and to a lesser extent the R33 look good, although a little OTT. My favourite Skyline has to be the R32, a much cleaner design. The concept GT-R in my opinion looks very aggressive and like no other car on the road. I would like to see it make it into production.
 
Originally posted by KosmikFool
And I was always told it's 4WD when all four wheels are used to drive. And the Skyline uses more than 10 percent, well, the Nismo Skyline does but I'm not sure about stock.

Is anyone listening? It's variable -- as in it changes from time to time. Between 0% and 50%. It could be 3%, it could be 38%. It's electronically, infinitely varaible. Since the Nismo Skyline uses the same ATTESA system, it works the same way. They can tweak it a little bit, but it's still fully variable.
 
As was stated the 4wd system on a Skyline GTR whether it is an R23 - R34 is variable.

When you are crusing, under soft or mild acceleration, or starting off very nicely it is 2wd. There is no or "0" front wheel torque used or engaged.

when you start to accelerate more aggresively or take off rapidly from a standing start the ATTESSA system governs the amount of front wheel torque dependant on a few veriables.

#1. The latteral and longitudal G-force sensors.
#2. 4 cogs, one on each axle sending tyre speed back to the ecu each wheel indipendantly
#3. Throttle position sensor.

The ecu translates the data sent to it from these three inputs, then decides how much torque to transmit to the front wheels via a clutch pack in the transfer case. The ratio can vary from 0 - 50% though 99.9 % of the GTR drivers will ever see 50%. I have in the rain lauched the car at 7,000 rpm trying to hit it and only managed @48%. The needle did not quite make the top mark. The torque comes on in a delayed action also, but when it does in engage it does so quickly once it starts. Generally you can expect to see from 10-20% on average even under hard acceleration until you are producing more than 475hp then the increment increases as the power output does. Currently my R32 is making just over 340hp at all four wheels, and I have seen 20% a few times in the dry while in the wet it can go to 40% easily, but pretty much hovers around that point as the car is already begining to acclerate and thus reducing from the initial kick.

The minute you back off the gas the car goes instantly back to 2wd and unlocks the diffs. Hence the reason it is easy to spin a GTR when you are in a power slide and back off the throttle.
 
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