AWD Cars

  • Thread starter f_399
  • 9 comments
  • 2,318 views
Does putting all/most the power to the rear wheels help with top speed or accelerating(minus wheel spin)?

i have a maxed out 700hp nissan r33 skyline with all the upgrades(engine, suspension, weight, transmission...)
 
Last edited:
The basics are:
More transmission at front wheels = better steering.
More transmission at rear wheels = better acceleration (to a certain point).

The more transmission you put to your front wheels the more they can actively pull your car in a direction your front wheels facing.

The more transmission you put to your rear wheels the more your car is gonna be pushed in a straight line forward (direction your rear wheels facing).

There are no settings which could be called "best" it strongly depends on preferences of the dirver and track.

If you like to go full throttel during corners (which you should with a 4wd if possible) you are better with more front transmission. If you are racing a track with many smooth long corners you should have more rear transmission.

To be honest i don`t think it is worth to change all/most to rear transmission, top speed won`t change and your acceleration won`t benefit alot from doing so. You`ll only notice getting pushed from the line during corners with full throttel.
 
The basics are:
More transmission at front wheels = better steering.
More transmission at rear wheels = better acceleration (to a certain point).

The more transmission you put to your front wheels the more they can actively pull your car in a direction your front wheels facing.

The more transmission you put to your rear wheels the more your car is gonna be pushed in a straight line forward (direction your rear wheels facing).

I'm going to have to respectfully disagree with this. The concept of the friction circle indicates whenever you apply an accelerative or decelerative force to a tire you reduce it's capability for lateral grip. Applying more power to the front wheels doesn't "pull the car into the corner", it reduces front grip causing power-on understeer. Similarly, moving more power to the rear increases power-on oversteer much like a FR car. For drag racing you'll want something close to 50/50. For optimum handling, maybe 30/70.
 
Well you are sure right about this, if you talk about the limits. Under normal conditions, meaning your tires don`t scream in every corner you can benefit from this extra force on front wheels.

It`s not like a car always oversteer or understeer as soon it drives into a corner. If you are way to fast in a corner a car will always oversteer and being pushed straight instead of sideways. Acceleration in this situation with the rear will make it even worse because your rear wheels can push only in a straight as i explained.

If you are almost oversteer the front of your car will sink into the damper, meaning you`re gonna have much more weight on the front wheels to maintain grip.
So I would rather choose to transmit my power to those wheels instead of the rear.
The linear grip of a tire can easly compensate slip if you accelerate, unless you put a brutal force of severeal hundrets BHP on it.
Which is kinda the whole point of 4WD to split the horsepower on both axes instead of one.

But i can`t disagree with you entirely, it really depends on the situation and how close your car is to oversteer or understeer. Try out a 4WD with 10/90 ratio on Grand Valley East and you will understand ^^
 
i usually end up around a 20/80 in my setup. helps on breakin the back loose if i need to. just have to mess with it for what feels good for your style
 
The basics are:
More transmission at front wheels = better steering.
More transmission at rear wheels = better acceleration (to a certain point).

The more transmission you put to your front wheels the more they can actively pull your car in a direction your front wheels facing.

The more transmission you put to your rear wheels the more your car is gonna be pushed in a straight line forward (direction your rear wheels facing).

There are no settings which could be called "best" it strongly depends on preferences of the dirver and track.

If you like to go full throttel during corners (which you should with a 4wd if possible) you are better with more front transmission. If you are racing a track with many smooth long corners you should have more rear transmission.

To be honest i don`t think it is worth to change all/most to rear transmission, top speed won`t change and your acceleration won`t benefit alot from doing so. You`ll only notice getting pushed from the line during corners with full throttel.


I also have to disagree with this as well. transmission in reguards to 4wd has nothing to do with steering, it has more to do with traction.

If you want better acceleration leave the split 50/50. alot of acceleration is to do with traction. Mo point having a 500bhp monster if it has no traction and spins its wheels, the lower powered 300bhp car with better traction would leave it for dead in regards to acceleration.

What will happen leaving the split 50/50 is that the car will understeer through the corner when you try to put the pedal to the metal so to speak. To compensate for this you just need to alter you lsd setting at the front a little 10/15/10 tends to be a universal setting to work round on 4wd cars from my gt5 tuning experience.
 
I have a 900+ hp S6 that I am going crazy tring to get it to pull in the turns..no matter where I set it up..I cant make fast, tight turns...I am getting passed in all the turns...
 
Back