Overland Journal Project Land Rover Discovery 4 (LR4)

Scott Brady

Founder
Thanks for the kudos, guys. I am actually quite happy to see it mentioned here on ExPo. We at GAP-Diagnostic are a bunch of LR enthusiasts - and using the IIDTool in this sort of environment is exactly what we had envisioned when we created it.

I do like the idea of clearing faults and being able to run at a higher speed in a higher setting. Fast, sandy two-track comes to mind. I remember being in Australia with a Discovery 3 that would beep incessantly anytime we exceeded about 30 kph, then lower the car. That was a long road at those speeds.
 

SteveMfr

Supporting Sponsor
Scott,
Yeah - we get a lot of requests for raising the off road speed limit from Australia. And I know exactly how much of a PITA the speed limit can be even w/o hundreds of miles of outback in front of me. I use the bong and the drop to standard height as a terrain indicator: if I hear the bong and the suspension drops to standard height there will be an obstacle requiring additional clearance within the next couple of meters - guaranteed :p.
TBH, though, this is one item we have not yet implemented. We have talked about it but discussions with our lawyers on liability issues have stopped us till now. What you can do, of course, is to use the IIDTool (or our other LR product, the EASControl) to raise the standard height of the suspension. You can get quite a bit of additional clearance this way and, in contrast to rods, you can go back to stock height in a matter of seconds w/o leaving the car. We have included 3 memory slots for different height 'profiles' so you can switch from the 'outback' profile to the 'street' profile (or to the 'oversize tire'/whatever profile).

I could post a link to a vid showing a height change in a LR3... Would posting the vids be inappropriate?

NWoods,
I can feel for you. My 'day job' is doing PR / business development / and legal consulting. We have really felt the crunch as well. I hope that GAP Diagnostic will be able to pay my bills in the not too distant future.
You could take a look at an older MKIII RR. It is just as capable as an LR3 off road and early ones have come down in price quite a bit - and will prob come down even more when the new L405 RR becomes more prevalent. That would leave more money for repairs and fuel. It really is too bad the diesel never made it to the US. We average close to 25mpg with ours.
 

Scott Brady

Founder
We found a set of 18" wheels from an LR3 and will begin the process of making them work on the LR4. The ideal size would be a 265/70 R18 in an LT All-Terrain (about 32.6" actual diameter), but I am having trouble finding the tire I want in that size. There are some tires available in a 275/70, which would be over 33" actual height (33.2"). I am quite tempted to make them work. . .

This truck really needs 18" wheels and LT tires before we attempt any real trail/exploration work, so it is a top priority at the moment.
 

Scott Brady

Founder
So, I weighed the LR4 today to form a baseline of the discussion.

A stock LR4 is 5,617
The gross weight is 7,143
Payload is 1,325

I weighed the truck on a local scale today with all of the modifications shown, plus a 3/4 tank of fuel, a set of four MaxTrax and 312 lbs. of 18" tires and wheels in the back. I was in the vehicle at 235lbs. I would say the weight is pretty consistent with a travelling load for me, but without a passenger. When I get the truck all finished and loaded for a trip, I will make sure Steph is in the car and will weigh it again.
LR4_Weight.JPG
Pretty funny how it hit 7,000 lbs. exactly. What is even more amazing is how well the truck handles, stops and accelerates with that load. There are some benefits to modern vehicle design. . .
 

SteveMfr

Supporting Sponsor
Here are a few videos I found on Youtube of the IIDTool. Hopefully Steve will post a few more

Thanks, Scott! The last vid "RRS lowering" is the one I wanted to post showing raising/lowering the EAS. This is the EASControl on a RRSport, but the RRS and LR3 are more or less the same electronics-wise and the EAS functions are the same in the IIDTool. The EASControl has only the EAS functionality of the IIDTool for people who would like to play with the suspension but have no need or desire for full diagnostics.

This is the other vid I wanted to post: it shows the menu of the IIDTool on an LR4 with the rest of the functions that were missing previously (e.g. some service routines such as EPB or SAS calib., 'Control I/O' to manually control components). There is no longer really a serious difference to much more expensive systems. BTW, controls for the IIDTool are the cruise control switches: resume= enter, speed+=menu/value up, speed-=menu/value down, cancel=back.

 
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JimBiram

Adventurer
Nathan, I sure wish you were back on the trail with an LR3...it's always good to have you along. I'll keep the passenger seat open for you any time!
 

SteveMfr

Supporting Sponsor
Actually, we can turn TPMS off. This was very well received in Europe. :p

There are a large number of features that can be altered or modified in the CCF - car configuration files. This includes little items such as the key-in-ignition warning chime when the driver's door is opened, the low temperature (ice) warning chime, etc. and goes to more well known items such as lazy locking, single point of entry, daytime running lights, to items such as TPMS, park heat functions (diesel), nav on the move (entering destinations while driving), etc.

The CCF functions are items that have been programmed into the various ECUs by LR. We are only giving access to these 'soft switches' via the IIDTool, and we can allow items to be changed that were not programmed into the OEM IDS/SDD systems so that we can offer more of these options than the dealers can.

In contrast to the CCF settings, making changes to items such as the off road height speed limit is not simply flipping a 'soft switch' - it is actually reprogramming and writing the new values into the code in the EAS ECU (as LR did not leave this as an option in the EAS ECU). Reprogramming ECUs is not always possible either, though. The amount of effort required to reverse engineer the sw is often simply too great.

But as we are a small co. and enthusiasts ourselves, if there is something that people would like to be able to do we will definitely listen. And if it can be done and causes no other issues (including non-technical issues such as liability concerns), we will do our best to make it happen.
 

nwoods

Expedition Leader
Nav on the move is pretty cool! A lot of people have been bummed ever since LR patched the old maintainence hack that used to allow that.
 

Mack73

Adventurer
Nav on the move is pretty cool! A lot of people have been bummed ever since LR patched the old maintainence hack that used to allow that.

Yes. Is this in the firmware that's available now, or in a future version?


Oh and get rid of the stupid nav disclaimer that I have to accept every time ......
 

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