4x4 / Off-Road TechThis section contains all discussion related to taking the FJ Cruiser in Off-Road situations, 4x4 applications and any armor modifications.
Yet another lurker here who's posting for the first time. My FJC has been on order for a few weeks and I'm vicariously living through many of you. I can't wait to get this beast off road.
MY FJC is going to be AT 4X4. This means that it is essentially a rear wheel drive vehicle except for when 4X4 is manually activated. I am used to Subaru's and Honda's with AWD but not as familiar with Toyota's systems.
I fully understand the off-road capabilities of this amazing vehicle including locking rear diff and ATRAC. However, say I am in a snowstorm on the highway. Is it appropriate to turn on 4 High? If so, does the TRAC (not ATRAC) system apply itself to all four wheels, or just the rear wheels? I have seen both stated affirmatively in various threads here.
The only Toyota I have ever owned was an '88 Tercel, so I am not familiar with Toyota's terminology or specifically the "TRAC" system. Thanks in advance for your assistance.
Yet another lurker here who's posting for the first time. My FJC has been on order for a few weeks and I'm vicariously living through many of you. I can't wait to get this beast off road.
MY FJC is going to be AT 4X4. This means that it is essentially a rear wheel drive vehicle except for when 4X4 is manually activated. I am used to Subaru's and Honda's with AWD but not as familiar with Toyota's systems.
I fully understand the off-road capabilities of this amazing vehicle including locking rear diff and ATRAC. However, say I am in a snowstorm on the highway. Is it appropriate to turn on 4 High? If so, does the TRAC (not ATRAC) system apply itself to all four wheels, or just the rear wheels? I have seen both stated affirmatively in various threads here.
The only Toyota I have ever owned was an '88 Tercel, so I am not familiar with Toyota's terminology or specifically the "TRAC" system. Thanks in advance for your assistance.
ATRAC is applied to all 4 wheels unless the Diff lock is on. You would want to run in 4 high if in snow.
TRAC = Traction Control
Its on all the time. Whether in 4hi or 4lo. In order to make use of TRAC, you must keep the engine RPM around 1100-2400 for it to work properly. ATRAC is a more aggressive TRAC that works nomatter the engine RPM.
The reason I think Toyota made the TRAC work with lower engine RPM is because when your going full throttle, you probably don't want TRAC like in mud, or snow. Therefore, TRAC isn't activated in higher RPMs.
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07 FJ-C Loaded
06 Corolla CE
02 4Runner Sport Edition
91 Cressida 5spd Turbocharged Intercooled
91 Cressida 5spd Turbochaged Intercooled
90 Supra 5spd
Have you looked at the toyota website---theres actual footage of some of these things in action---
I think driving school will be in order as it is with my Cobra and STI- you may see me on the evening news danging from an overpass untill I get it all straight... I want hubs though!!
I love what you do for me Toy--- oooo--- ta
I understand the ATRAC to be an individual wheels brake gripping the spinning wheel while the other wheels power you off to safety---or to more trouble, depending if you are a half empty or half full type of personality.
Last edited by tractorlegend : 04-25-2006 at 08:04 PM.
put it into 4 high in snow
ok a few lessons here
the differenc ebetween 4wd and all Awd is Awd has a diffrential in the transfercase and has no low range, in effect Awd supplies power to one of 4 tires at any time.parttime 4wd has a locked transfercase and a low range, in 4high it is delivering power to 2 wheels at a time, one in the front and one in the rear. full time 4wd has a Awd style transfercase with a locking device in the transfercase . A partime 4wd can be diven in 2 wheel, a fulltime 4wd cannot.
you should never lock a differential in snow, when you do you get an effect called "crowning". what that is- as you do not have the drag of an unturning wheel, and both wheels are in a shear situation, your locked axle will slip to the bottom of the roads crown, and that means the ditch.
A traction contol system is not a locker, it simple puts the breaks to a wheel that is slipping. forcing the diff to transfer power to the other wheel.
I suppose what it comes down to is that I'm not used to having to "activate" systems for traction control. Obviously if it snows I will require something better than rear wheel drive. Again, I'm used to AWD systems which have "dummed me down" over the years.
On the way to my off road adventures such as driving on the Outer Banks (where I wouldn't want to use the ATRAC), or on some of the logging trails I will unfortunately be on pavement. In the instances where I need to get somewhere in ice and snow on pavement I would imagine it is acceptable (or mandatory) to put the vehicle in 4H despite the fact that you shouldn't drive in 4H on pavement.
I want hubs though!!
Linear Mode
