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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Adding Paddle Shifters
Oct03

Adding Paddle Shifters

One thing many don’t consider, is you can actually add OEM Land Rover Paddle Shifters to 2010-2012 Range Rover L322.  I was first made aware of this via an ill titled thread on rangerovers.net.

The only issue with the install is that the L connector from the paddle shifters is the wrong sex to connect to the the wheel connector.  There are a few work arounds.  The one I would reccomend is using Powerful UK LTD who provides a sex adapter for the Range Rover “Flappy Paddles”.  The harder way which is of course the way I choose is to mock up a connector using a small 4 pin computer 3.5″ disk drive power cord shaved down and pressed in very tight.  It took a few hours to get the connector just right and I still worry that the connector may loose itself.  The best advice I read is to ensure the flappy paddle plus and minus symbols light up with the lights on which will ensure they are wired properly. 

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Reduce 2 Pack of Tumblers fit Range Rover 2007-2012 Center Console Perfectly
Sep30

Reduce 2 Pack of Tumblers fit Range Rover 2007-2012 Center Console Perfectly

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The Two Pack of Reduce Tumblers Fittedinto a 2011 Range Rover Supercharged

While this isn’t the most important Range Rover issue I’ve ever blogged about, I picked up a “Reduce” brand two pack of stainless steel vacuum insulated tumblers.  These two cups fit the Range Rover center console perfectly and look good in the car.  As in you can use the both cups in the cup holder in the same time.

They have a unique lid with a straw, sip, or gulp option on the same lid, a straw lid is about $10 extra from Yeti. So it may not be Yeti quality but this Costco cup addition comes in at $20 which is very reasonable and a great accessory for every Range Rover 2007-2012 owner.

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These cups are great for iced coffee and drinks, Reduce claims a 24 hour cool performance from their stainless steel vacuum double wall construction.  In practice you can leave an iced drink in the sun light in your Range Rover, come back after running some errands and come back to a nice cool drink.

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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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Range Rover 5.0 SC 2010 at 155mph, Range Rover 2013 0-245kmph
Aug22

Range Rover 5.0 SC 2010 at 155mph, Range Rover 2013 0-245kmph

I came across this thread at full fat range rover which featured two videos.

The first video discussed was a 2010-12 Range Rover 5.0 SC going past the speedometer.

This video generated many comments on youtube accusing it of forgery.  There was even some debate on full fat range rover until xxxANGELxxx posted his video of 0-245 kmph in a 2013 Range Rover 5.0 SC on the autobahn.  This second video clearly validates the first by showcasing acceleration which has even greter jerk.

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Tesla Model E caught test driving from LA to Vegas.
Jul03

Tesla Model E caught test driving from LA to Vegas.

We took a Range Rover from LA to Las Vegas in late June in the middle of the day.  I thought we would be fine if we kept moving.  However, there was a lot of traffic!  We saw a towering thermometer with 119 degrees lit up, only two away from the top with 129 and 139 remaining.  There were ominous signs about turning off you air conditioning.  We kept our A/C on re-circulation the whole trip.

 

We ran into a hatchback with heavy camouflaging, a sure sign of a test bed  I am sure we caught a tesla model 3/e testing.

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In the middle of the trip we started to hear a hiss from the air springs.   I prayed.  The airsprings didn’t throw a fault or lower so I believe it was an  over-pressure release caused by excessively hot road temperatures.

 

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