4×4 Systems Overview: 4×4 vs AWD vs Permanent 4WD vs torque vectored vs locked vs unlocked
Oct06

4×4 Systems Overview: 4×4 vs AWD vs Permanent 4WD vs torque vectored vs locked vs unlocked

The Range Rover has always featured innovated 4 wheel drive systems but there are many versions of these drive systems, in addition to the host of other Land Rover off road technology.

The first thing to note is that 2wd needs 1 open differential to ensure power is delivered smoothly around corners.  This also means that if one of those wheels has no traction the open differential sends all of the power to the wheel with the most slip!

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The Range Rover’s locking elocking rear and center differentials enables progress when traction is low.

An all wheel drive system adds two more open differentials, one in the center between the fore and aft and two open differentials on each axel.  In this system again the power will go to the wheel with the most slip.  So basically if one wheel has no traction you still aren’t moving by positive power train action.

A permanent 4wd system like those employed on range rovers provide a viscous coupling in the p38a, a torsen in the 2003-2005 Range Rover, and electronic locking in the 2006-on.  The point of the (partially) locked center differential is that some power will be sent to the opposing axel so if one wheel has no traction you will still be able to move. Or if both front or both rear wheels have no or limited traction you will be able to move forward, unless truly no traction is provided and then you would need a locker, or an electronic locker.

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A main difference between the h1 and the hmmvee is the differentials in the H1 are torsens and the hmmvee had lockers.  The G500 also has 3 lockers.

A 4wd system implies a true center locking center differential and a low range, although new gearing and gearboxes have made some off-roading available without low range.

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Miners Gulch, Yankee Hill in a Range Rover 2011 SC
Sep09

Miners Gulch, Yankee Hill in a Range Rover 2011 SC

Mid-September I attempted to run Yankee Hill but ended up taking Miners Gulch which was also fun. I picked up the trail near Central City, Colorado. Central City is an old mine supply town and is full of a beautifully preserved buildings many of which are either owned by the city or casinos. Unlike many casino cities including Las Vegas and nearby Blackhawk, Colorado Central city is a town you have to see during the day.

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Nevadaville and many ghost mines are close to Central City and Blackhawk, you can see very old Masonic and Odd Fellows Cemeteries close to where the trail pickup is.

imageHere is a tucked away camping area off of Yankee Hill, fairly big clearing so I chilled here for a minute.

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imageI’ll post more pictures soon from this outing.  Check out switzerland trail run.

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How to Off Road in a Range Rover, P38a, L322, L405
Apr19

How to Off Road in a Range Rover, P38a, L322, L405

So you just got a new truck or you just moved to Colorado and you want to know the next steps in off roading and enjoying the Land Rover Lifestyle?

Please familiarize yourself with the vehicle, including the X angle and the four corners.  Most notably the rear wheels track tighter than the center wheels so typically you can start steering past an object when you see it in your rear view mirror, however your truck may be different.  Make sure you are able to reverse a great distance and with curves.  I’d also recommend that you are confident in operating the Electronic Air Suspension, Low Range, DSC off, HDC on, Terrain Response, or locker controls if so equipped.  The P38a is tricky because essentially the center differential is actuated by slip.

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You may want to watch this series of Land Rover offroad instructional videos on youtube.  These are fantastic resource that used to be difficult to view.  If you have a similar vehicle you may want to browse our Off Road Trail Reports for inspiration of travel locations and their challenges of traversing.

Check out stay the trail if you are in Colorado, they have great information about the trails available, rules, and most importantly links to seasonal closure status.

You may want to run a few trails in tandem with a group such as traildamage.com or Solihull Society which hosts the national Land Rover Rally.   Running with a group is much safer and provides a greater degree of enjoyment in many cases allowing more difficult, remote terrain to be tackled safer than if you were to ride with just one vehicle.

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Colorado Springs, Manitou Springs, Pikes Peak, Cripple Creek
Apr06

Colorado Springs, Manitou Springs, Pikes Peak, Cripple Creek

We did a loop down from Denver to Colorado Springs via i-25 where we went to Garden of the Gods.  From there before the balancing rock we took a right on to Rampart Range Road.

 

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There are several signs warning how bad the road is, but it was a pretty good road!

The switchbacks overlooked the Garden of the Gods rock formation and had several great views of Red Rocks near the trail.  This is such a fantastic road, highly recommended!  We played a bit on the turn around and the 2011 RR SC handled it beautifully.

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From there we went to Manitou Springs and it was a quick drive away.  Manitou Springs has a vibrant downtown area dominated by a sprawling indoor outdoor arcade.  Or perhaps more aptly Arcade Collection.  There are tons of rides for the little ones, and retro gaming for the adults.

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The arcade has takes up a pavillion and more than 5 store fronts.  Patsy’s offers beach boardwalk fare including funnel cakes.

There is an interesting pay what you want coffee shop, bars, and a toy shop in the immediate area.

After cripple creek we headed north through back roads in national forest until we met up with 285 around conifer.  We had a quick drive back and the miles flew by once on the highway.

I tried out the fog lights + high beams ccf mod I wrote about in the Gap-Diagnostics IIDTool Bluetooth piece, and I can say it throws a lot more consistent light from far away to close in, a very welcome improvement in night visibility.

Pictures coming!

 

 

 

 

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Off Road Rover under DDOS attack
Mar27

Off Road Rover under DDOS attack

Unfortunately we may have had to block some good traffic to survive a DDOS attack which is unfortunately on-going.  Please pardon any throttling or blocks right now as we persevere through this attack.  We have removed alpha functionality at this point to preserve up-time.

 

Thanks and Happy Easter!

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Boulder, Boulder Canyon, Off Road in Snow
Mar27

Boulder, Boulder Canyon, Off Road in Snow

So when my High School friend Mike came out to visit his family we had to make a trip up to Boulder.  We hit this incredible breakfast place, the buff, that has $1 drinks. After that we went down Pearl Street, hit up the shops, took in the sights then headed out up Boulder Canyon.

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We stopped to snap a few shots and continued up boulder canyon.

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Turning off on an off shoot we off roaded until we couldn’t in the snow.  I didn’t take any pictures of where we stopped, I should have though, it got a bit rough and tight.

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Then drove home and noticed the weather change from blizzard to sunny as we descended.

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