Advice on 4WD on GTR

[REDGTT]

Say If I am coming into a corner hard can I power out like a wrx or will it fish tail?

What doe sthe GTR do when I corner it hard? Does it drive like a rwd car or does it hook up nicely?

[Silver-Arrowz]

Being a former "rexy" owner, my advise is don't drive the GTR like the WRX.

Yes, the GTR does drive like a RWD. It only engages 4WD mode when the rear kicks out. Don't try to counter steer too much when the rear kicks out. Use about half as much and keep your foot on the throttle.

Like any 4WD, brake before you enter the corner to balance it out. Failure to do so and it's understeer all the way.

You may think the WRX is faster out of corners, but in reality the GTR steps all over the WRX.

[Guest Nismo_Freak]

Also note that the WRX is lighter and has less torque than the GTR which makes the AWD system "lighter" feeling meaning it does have a gross over/understeer. The Subaru system is a 50/50 distributed AWD where as the Nissan system is a 40/60 (rear gets the larger bit) to make the car react more like a RWD car. From watching videos I have noticed that the AWD system kicks rather sharply when it gains traction. Usually AWD systems like to push out when they are under load in corners but the GTR should remain fairly balanced with its spring rates, suspension, wieght distribution, etc. Just go into the corners and react is all I can say... its when you predict what the car is gonna do when you get in trouble. Just whatever you do dont lift throttle when you are cornering hard... it can make you spin out.

[REDGTT]

Thanks guys.

Hey Silver the WRX was so easy to take out of corners!

The GTR I dont know what to expect from it and last night I was to scared to try and power out of corners.

[CC's]

that explains why you were going so slow hahaha

jokes man heheh

:lol: :burnout:

[Silver-Arrowz]

The WRX is idiot proof. Well, almost. It's more forgiving. I don't know how ram-raiders roll and lose control of WRX's.

Go to the race track on a wet day and you'll learn very quickly. In the wet, you don't need too much speed to get it sideways and see how the 4WD works. Just don't speed too much on the straight.

[U WERE MINE]

minh.. best way is to just take it to a track and see how it reacts when pushing it.. tis much better to find out on the track than on the road though it is kinda fun on the road though..

actually theres a track day today .. should have gone given it some actually bugger it... jump in the passenger seat.. adn ill take u for a drive.. just gimme a couple mins to sort out what to do with 4wd

[REDGTT]

Originally posted by CC's

that explains why you were going so slow hahaha  

jokes man heheh

:lol: :burnout:

shhhhh dont let my buddies know I cant drive hahahaha

Next time I will rip one right pass your house. hahaha

[Just Jap Racing]

i always find slow in fast out works with my gtr keeping the pedal down seems to straighten them up well , you can always fit a 4wd controller wind on a bit more drive on the front similiar to the n1 and they loose that taily bit.

Stevehttp://www.justjap.com

[REDGTT]

Originally posted by justjap

i always find slow in fast  out  works with my gtr  keeping  the pedal down seems to straighten them up well , you can always fit  a 4wd controller wind on a bit  more drive on the front  similiar to the n1 and they  loose that  taily  bit.

Stevehttp://www.justjap.com

Hey steve thanks for the reply?

How much is this thing your speak of?

[Just Jap Racing]

i got my last one in japan for yen 40,000 there is a few types around

Steve

[Mick Trainer]

Having previously been a WRX owner also the Wrx has shocking understeer which limits your turn in speed drastically but as the 4wd system is constantly in operation it comes out easier (not faster but it is easier to get it right.)

The problem with the GTR's is that the Latitudinal Sensor sharply reduces drive to the front wheels whilst cornering thus bringing on vast amounts of oversteer if the driver wishes or allows. This will greatly effect your cornering speed especially your exit speed. As mentioned above the best way to fix this (and for me it should be fixed by anyone who cares about their cornering potential) is to fit a torgue spliter (or in real terms an amplifier) so that you can control the level of control that the latitudinal sensor has on the car. This will allow the bias to the front wheels to increase durin and exiting corners and will greatly improve the cornering and predictability of your cars cornering. This makes the car incredably neutral and will allow vastly higher cornering speeds and much earlier exiting apex's.

I built my own torgue spliter and am currently looking to re config the board etc for it but will be happy to build some if enough people are interested.

Mick.

[REDGTT]

Hey Mick nice to meet you.

How much will we be looking at?

[fatz]

reomve the fuse when you get to the track you will have more fun

pete

[Mick Trainer]

Aprox $200 I think but it will depend as I can get the Elec components heaps sheaper if we buy a heap of them.

Mick.

[Doctor]

Dont do the fuse thing to an R33 cause you will burn out your clutch packs.

R32 is a different story, thats because it a far better car:D

Doc

[400HP]

Are you guys talking about torque splitters like the HKS Torque split controller?

with things like this if you give the front more then is this a constant thing meaning that when you drive in a straight line you will have more drive to the front still? or is it adaptive or progammable?

[Mick Trainer]

400hp,

I do not know what the HKS splitter does but the one that I built does not drive the front constant it simply reduces the effect that the latitudinal sensor has on the attessa.

The GTR's have three sensors (2x Longnatudinal (to measure + & - g-forces) and 1 X Latitudinal (to measure sideways g-forces). Once the longnatudinal sensors measure a certain amount of g-forces it will engage the front wheels as it has assessed that the car can be wheel spinning. However once you turn a corner hard (you must be under acceleration for the longnatudinal sensor to bring the front wheels in) the latitudinal sensor REDUCES power to the front wheels, thus making the car very "taily" in it's handling. What my splitter does is allow you to dial in how much influence you want the latatudinal sensor to have and thus dictate how much front wheel drive you want durin cornering whilst accelerating.

It must be remembered that the longnatudinal sensors are the once that brig the front wheels into the equation so unless you are accelerating you still will not have any 4wd exactly the same as it does standard. The spliter simply reduces the power of reduction that the latitudinal sensor has. In a straight line the car will perform as standard. In corners however you can dial in how much front wheels you want.

You could achieve that possably by changing the sensor (lat) but with the dial so that it can be varied you can alter it as you desire for such variances such as wet or dry, slow or fast corners. It makes the car vastly safer and greatly alters tha handling characteristcs of the car making it incredably neutral.

One of the things that I have always found a little disapointing about the GTR's is their handling (I will say the same for the WRX except it is far harder to fix) due to the oversteer problems that they suffer. The splitter cures these problems and makes the GTR one very imrssive handling car, for a road going car.

For the record I also encourage people to get rid of their hi-cas if they wish to improve handling.

Hey a good set of Koni's will also help.

Mick.

[Just Jap Racing]

if you make them let me know because the jap ones are to dear

Steve

[400HP]

Mick - When you made our own torque splitter is it essentially an interceptor from the sensors ??

Anyway keep us all informed... I'm quite interested.