Originally Posted by BRICKTOP2
Nah, scratch all that. Everything works better when you floor it.
In the JK that kinda works because the traction control, ESP and BLD just take over and keep you from screwing up too bad.
Originally Posted by jaminb
ok i understand that but then wouldn't it make it better to divide up everything evenly like what happens if 4wd. Instead of making the rear wheels carry the 100 units of forward momentum? so for instacne lets say that each wheel has 25 units wouldn't that be better then 50/50 in the rear?
Yes, and No. If you are talking strickly "steering" ability having the front wheels ONLY steer is best. You CAN accomplish this in 4x4 by going though a corner balanced, (not accelerating, not braking/decelerating). Where people have a problem with this is by accelerating through the corner where you are actively asking the front wheels to do both tasks.
There are benefits when you keep it below the 100 unit threshold too. Let me lay a bit more foundation and then I will move one here.
A 4,000lb Jeep in 2wd (open diffs) is really asking 1 wheel to push 4,000lbs on a slick surface. Put that same Jeep in 4x4 (open diffs) and you have 1 fron and 1 rear dividing up the work, so each wheel only has to push 2,000lbs. Add things like LSD or lockers and you reduce the amount each wheel has to move forward. This is the how 4x4 helps in the snow.
Keep in mind that if the Jeep moves forward with half as much work from the driver it gives the "perception" of it not being as slick out. So people tend to drive faster.
Okay. Now as long as you are taking it fairly easy and keeping those wheels below their respective 100 unit threshold you can take advantage of the power going to each wheel during turns. For example, if you are only asking for 25 units of turning traction then it is okay to also use say 60 units of accelerating traction. Buy using the 60 units of "going" traction you are reducing the remaining amount of "turning" traction. No big deal as long as the total is less than 100.
Knowing this also helps you decide what you want at a particular time and how to get it. For example...You slam on the brakes because a car pulls in front of you. You ask for 120 units and it starts to slide(leave ABS out for the moment). You then realize you are not going to stop in time so you turn the steering wheel....NOTHING happens!!! That is because you are over the thershold. Take your foot totally off the brakes and instantly you will have all 100 units back to steer with. The car will jump to the side you are trying to steer to.
Now since I opened the box. Lets talk ABS for a second. (anti-lock brakes). What do they REALLY do? They were never designed to stop a car faster. They were designed to keep the traction below the 100 unit limit to give you some units left over for steering.
You SLAM your foot on the brakes asking for 101 units, the computer senses the wheel locking up and going over its' threshold to it RELEASES brake pressure...down to say an 80 unit point to give you units left over to steer with. Well guess what....? Your foot is still planted on the brakes....this builds the pressure right up and over the 100 unit threshold again.....the computer RELEASES the pressure again......It can release the pressure YOU are creating 7-20times per second depending on the system. This is the sensation people feel in the pedal. The ABS is NOT "pumping the brakes". It is releasing excess pressure to keep you below lock up to give you steering control.
A good driver can actually stop a car faster without the ABS system in many cars. On our skid pad a typical driver could stop their car 3-5 car lengths shorter distance at 20MPH than the ABS could. This is because they can hold the pedal at 99 units of traction in a straight line, where teh ABS wants to leave extra units available for steering so it is down around say 80 units. Just takes some practice to feel the brakes start to lock/abs come on and relieve a touch of pressure to shut off the ABS/get below lock up. The amount you ease up could litterally be equal to unflexing your pinky toe
.....okay, tired of typing......