Aftermarket suspension LX 570

[mike mooradian]

2008 + Toyota Land Cruiser 200 Series and lexus LX 570 King Shocks OEM Upgrade Kit - $1,424.95 w/ Free Shipping!

I know this has been covered extensively but it does say the King shocks will work on a LX 570. I've been looking around and there are such good deals on Lx's. they are a little to flashy for me but a 13 seems to go for about 8k less then a LC.

 

[krice118]

@mike mooradian Install them and let us know how it goes!
I think mud would know better than King

 

[duggy]

They'll fit just fine mechanically, but as of now, there is no work around for the AHC components that are tied into other various CANBUS systems.

 

[Chocolate]

They'll fit just fine mechanically, but as of now, there is no work around for the AHC components that are tied into other various CANBUS systems.

What about the Baja LX 570, which runs all stock LX 570 suspension components except for King Shocks?

Interview with Lexus LX Baja 1000 Racer Joe Bacal

I know this would entail a lot of custom work and you would have the check AHC and VSC lights lit up, but would it still be driveable on the road?

 

[TeCKis300]

As duggy points out, mechanically, everything suspension wise will drop right in.

It's the electronics side that hasn't been figured out. Which means once you unplug the pletheroa of sensors (height sensors, pressure sensors, etc.), the car becomes unhappy in some way. It's not been said what exactly that means, but it's some sort of limp mode, which is more than just a dummy light that comes on.

All this is not insurmountable. We may not understand how integrated the system is and what checksums the ECUs are looking for. Slee might, but probably hasn't done the R&D for a solution yet. Many other platforms have other types of integrated sensors that the aftermarket has figured out how to bypass or replicate a signal which satisfies the ECU sufficiently that they don't go into limp mode. So some one just has to figure out the riddle. Or find that master switch which allows the system to be bypassed such that other ECUs go on there merry way.

 

[Chocolate]

Yeah. It's a cool idea but I can't see the benefit to dropping King money to replace a system that already lets you adjust ride height and damping.

 

[TonyP]

There may be a solution via module/ecu swapping with an LC. Once that's figured out, the LX would be choice.

 

[duggy]

There may be a solution via module/ecu swapping with an LC. Once that's figured out, the LX would be choice.

Any more information on this?

 

[TonyP]

Just speculating.

 

[duggy]

Newer vehicles work on a CANBUS protocol which creates a neural network between all modules within the system. The problem is that if the AHC module is missing, or does not communicate with the other modules, it will throw codes and disable certain functions. CRAWL is one of those functions disabled if AHC is not properly communicating.

 

[TonyP]

Right, the key is getting the ECU to never look for the AHC module. Perhaps swapping to an LC ECU (or modules) would help. No idea. Electrical wizardry is beyond me.

 

[bjowett]

Mike, I have always wanted to attempt to adapt and integrate a set of King Shocks into the AHC system. If this interests you, let me know.

 

[OregonLC]

There's gotta be an out of work VW engineer out there who's use to faking electronics.

 

[mcgaskins]

This topic comes up about once a month it seems, and there's always this speculation of "Oh I'm sure it's not that hard" "I'll pull it out and slap in some resistors" "It can't be that hard if a Lexus race truck doesn't use it!". If the best guys in the business (Slee) use an LX570 as their shop truck and they haven't figured out a way to get rid of AHC, it's ridiculously complex. It will happen eventually most likely, but it's not happening any time soon. I honestly wish this threads would go away because when a good process for successfully removing AHC happens, it will be very big news. Everyone will know what that happens.

 

[TeCKis300]

This topic comes up about once a month it seems, and there's always this speculation of "Oh I'm sure it's not that hard" "I'll pull it out and slap in some resistors" "It can't be that hard if a Lexus race truck doesn't use it!". If the best guys in the business (Slee) use an LX570 as their shop truck and they haven't figured out a way to get rid of AHC, it's ridiculously complex. It will happen eventually most likely, but it's not happening any time soon. I honestly wish this threads would go away because when a good process for successfully removing AHC happens, it will be very big news. Everyone will know what that happens.

^Somewhat off topic, and perhaps somewhat to @Chocolate 's point. The LX570 isn't slee's first rodeo with AHC. Slee's 100-series rig was also an AHC equipped LX470. As far as I know, they maintained AHC on that built truck for most of its existence, doing many a trail run. I'm not aware they ever swapped it out. Perhaps they did. Perhaps they didn't. But it was surely capable, and it didn't stop them from acquiring another AHC rig when upgrading to the 200-series.

Related but interesting read here. Post #14 - To anyone that has removed their AHC...

 

[TonyP]

Fair enough. I did find this solution to AHC though...

 

[electro992]

Yeah. It's a cool idea but I can't see the benefit to dropping King money to replace a system that already lets you adjust ride height and damping.

Another one here with this question...seems to me AHC is more capable, as electronic height adjustment and damping aren't offered in the aftermarket. Is the desire to replace the system about getting more lift, or? Genuinely curious, not too familiar with the limitations of AHC.

 

[TonyP]

AHC is fine.
You're just not blasting through the desert or doing hardcore (for a 200) crawling with it.

 

[mcgaskins]

^Somewhat off topic, and perhaps somewhat to @Chocolate 's point. The LX570 isn't slee's first rodeo with AHC. Slee's 100-series rig was also an AHC equipped LX470. As far as I know, they maintained AHC on that built truck for most of its existence, doing many a trail run. I'm not aware they ever swapped it out. Perhaps they did. Perhaps they didn't. But it was surely capable, and it didn't stop them from acquiring another AHC rig when upgrading to the 200-series.

Related but interesting read here. Post #14 - To anyone that has removed their AHC...

He also mentions "You can also put in a stronger AHC Suspension like i did - when you add more weight." and "Our overlanding weight was near 4to (with 2 People, 280L Diesel, 85L Water, 33" spare tyre behind and all gear). And the AHC had handled this easy, after the upgrade.". We don't know what that means, but clearly he thought it was important to upgrade the AHC. I don't want this to turn into yet ANOTHER thread about AHC's strengths and weaknesses, but it's a good tool for the right job with King/Icon/OME being a good tool for a different job.

 

[longranger]

He also mentions "You can also put in a stronger AHC Suspension like i did - when you add more weight." and "Our overlanding weight was near 4to (with 2 People, 280L Diesel, 85L Water, 33" spare tyre behind and all gear). And the AHC had handled this easy, after the upgrade.". We don't know what that means, but clearly he thought it was important to upgrade the AHC. I don't want this to turn into yet ANOTHER thread about AHC's strengths and weaknesses, but it's a good tool for the right job with King/Icon/OME being a good tool for a different job.

Yeah, we need to get more details on what people mean when they say “stronger” AHC — to me this suggests, at a minimum, stiffer springs to account for the much greater weight. There is often talk of people putting in “the same springs used in armored LX/LC” or “violet springs” — but rarely more detail beyond that. I think “violet” = Eibach springs but would love to get an actual part number so we can move this conversation forward.