Air Suspension vs. Coils - Long Term Durability vs. Real Capability

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Which suspension setup would you choose?

  • Factor air suspension - I value ride height adjustability and load leveling

    Votes: 4 21.1%
  • Traditional steel springs (coil/leaf) - I value long-term durability and simplicity

    Votes: 6 31.6%
  • Depends on execution - air could be worth it if Scout overbuilds it

    Votes: 3 15.8%
  • Undecided/waiting on more technical details from Scout

    Votes: 6 31.6%

  • Total voters
    19
I see what you’re saying now and I have to agree. I have witnessed countless situations where a Rivian (I’m not picking on Rivian, I just happen to have seen it with R1Ts on rougher trails the most graphically) will unfortunately have egregious wheel spin over certain not-really-that-difficult obstacles only to have the next off-road oriented stock vehicle behind them have little to no wheel spin over the same section of trail even without the use of lockers. It makes certain situations either completely not enjoyable, not advisable, or sometimes downright dangerous or impassable. Impassable or impossible, you choose.

If that’s what you’re getting at, then yes I am also concerned with this. It would severely limit my off road excursions in my area and would really make me think twice about a purchase if the Scouts have that level of performance. I slow crawl 99.9% of all obstacles currently and I’m not ready to give that up. I don’t get a thrill from beating on vehicles off road.

I’m betting and hoping that Scout will offer a high level of off-road capability. I want them to be extremely capable. I hope they’ve got some things up their sleeves that we haven’t caught wind of yet.

I wish I had been a fly on the wall in some of their early meetings so I could know which exact vehicles they benchmarked.
But I suspect SM will address this better than others since these are proper off-road vehicles. The Rivians were never touted as off-road capable (though to a degree they are) but Scout is pushing this
 
But I suspect SM will address this better than others since these are proper off-road vehicles. The Rivians were never touted as off-road capable (though to a degree they are) but Scout is pushing this
Hold up! Rivian has always touted their vehicles as highly capable / offroad vehicles. In fact, they offer an all-terrain package with tow hooks, A/T's, reinforced underbody shield, off-road modes (even a rock crawl mode & soft sand mode), and 4 motors if you want 'em. The Kick-Turn feature that was launched with GenII doesn't even work on pavement, and the new motors have different gearing front and back for high and low torque. I (personally) wouldn't want to take my brand new R1T to a chunky rock garden where you slip off an edge and pummel yourself to the bottom of gizzard gulch, but off-road capable? Yes, very much so. They are also more difficult to modify, which would also make them less appealing to the monster truck mod rock crawling briggade, which I totally understand. The new kick turn feature is pretty cool actually: https://stories.rivian.com/r1-gen2-quad-motor
 
There is some confusion in this thread about what causes tire spin or lack of traction off road. All the torque in the world won't help unless the suspension geometry is correct. Jeep is a perfect example of this.

A Wrangler in its stock form (especially a TJ) will crawl over just about anything. The suspension geometry is near perfect and all of the torque created is translated to traction. Owners unfortunately screw with the geometry by adding a lift in order to fit bigger tires. While it would seem to most people like that is more capable, the change in suspension geometry now leads to tire spinning or lots of bouncing (rock humping). That's anti squat coming in to play. No amount of engine will overcome poor suspension geometry.

The cybertruk has a horribly designed suspension from an off road standpoint. The videos of it getting stuck on what should be non obstacles is proof of that. If you want the Scout to be an offroad capable vehicle, it can have either air bags or springs. It just needs the control arms to have proper verticle spacing around the roll axis and CG. If you add a lift after, don't blame Scout.
 
There is some confusion in this thread about what causes tire spin or lack of traction off road. All the torque in the world won't help unless the suspension geometry is correct. Jeep is a perfect example of this.

A Wrangler in its stock form (especially a TJ) will crawl over just about anything. The suspension geometry is near perfect and all of the torque created is translated to traction. Owners unfortunately screw with the geometry by adding a lift in order to fit bigger tires. While it would seem to most people like that is more capable, the change in suspension geometry now leads to tire spinning or lots of bouncing (rock humping). That's anti squat coming in to play. No amount of engine will overcome poor suspension geometry.

The cybertruk has a horribly designed suspension from an off road standpoint. The videos of it getting stuck on what should be non obstacles is proof of that. If you want the Scout to be an offroad capable vehicle, it can have either air bags or springs. It just needs the control arms to have proper verticle spacing around the roll axis and CG. If you add a lift after, don't blame Scout.
Thanks for educating me. This was very insightful
 
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There is some confusion in this thread about what causes tire spin or lack of traction off road. All the torque in the world won't help unless the suspension geometry is correct. Jeep is a perfect example of this.

A Wrangler in its stock form (especially a TJ) will crawl over just about anything. The suspension geometry is near perfect and all of the torque created is translated to traction. Owners unfortunately screw with the geometry by adding a lift in order to fit bigger tires. While it would seem to most people like that is more capable, the change in suspension geometry now leads to tire spinning or lots of bouncing (rock humping). That's anti squat coming in to play. No amount of engine will overcome poor suspension geometry.

The cybertruk has a horribly designed suspension from an off road standpoint. The videos of it getting stuck on what should be non obstacles is proof of that. If you want the Scout to be an offroad capable vehicle, it can have either air bags or springs. It just needs the control arms to have proper verticle spacing around the roll axis and CG. If you add a lift after, don't blame Scout.
I never knew that- thanks for the great info!
 
Yes, I see this as a gimmick only. I mean really….
It does "look" gimmicky, and you could do some party tricks with it camping, but it allows you to perform a super tight radius turn off-road, so it is a trail assistance feature (like any feature you might use in specific off-road situations):
 
But I suspect SM will address this better than others since these are proper off-road vehicles. The Rivians were never touted as off-road capable (though to a degree they are) but Scout is pushing this
I thought Rivians were marketed as adventure (off-road capable) vehicles. Regardless, I still believe SM can and will do better.
 
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Wouldn’t it have to be a quad motor to do that? Or am I not understanding it correctly.
I believe so, kind of like a tank turn. You can get Trail Turn Assist on a Bronco or on a JL/JT (with a Tazer) as well. It’s not the same thing, but still helps in the same types of situations.
 
  • Like
Reactions: maynard and cyure
There is some confusion in this thread about what causes tire spin or lack of traction off road. All the torque in the world won't help unless the suspension geometry is correct. Jeep is a perfect example of this.

A Wrangler in its stock form (especially a TJ) will crawl over just about anything. The suspension geometry is near perfect and all of the torque created is translated to traction. Owners unfortunately screw with the geometry by adding a lift in order to fit bigger tires. While it would seem to most people like that is more capable, the change in suspension geometry now leads to tire spinning or lots of bouncing (rock humping). That's anti squat coming in to play. No amount of engine will overcome poor suspension geometry.

The cybertruk has a horribly designed suspension from an off road standpoint. The videos of it getting stuck on what should be non obstacles is proof of that. If you want the Scout to be an offroad capable vehicle, it can have either air bags or springs. It just needs the control arms to have proper verticle spacing around the roll axis and CG. If you add a lift after, don't blame Scout.
I’m not in disagreement here, but make no mistake - lifting the vehicle absolutely does not automatically eliminate capability. Not all lift methods are built the same.
 
There is some confusion in this thread about what causes tire spin or lack of traction off road. All the torque in the world won't help unless the suspension geometry is correct. Jeep is a perfect example of this.

A Wrangler in its stock form (especially a TJ) will crawl over just about anything. The suspension geometry is near perfect and all of the torque created is translated to traction. Owners unfortunately screw with the geometry by adding a lift in order to fit bigger tires. While it would seem to most people like that is more capable, the change in suspension geometry now leads to tire spinning or lots of bouncing (rock humping). That's anti squat coming in to play. No amount of engine will overcome poor suspension geometry.

The cybertruk has a horribly designed suspension from an off road standpoint. The videos of it getting stuck on what should be non obstacles is proof of that. If you want the Scout to be an offroad capable vehicle, it can have either air bags or springs. It just needs the control arms to have proper verticle spacing around the roll axis and CG. If you add a lift after, don't blame Scout.
When it comes to IFS a lot of people dont realize a "lift" is just moving your travel, not adding to it.

Your shocks are typically your limiting factor when it comes to travel. They determine how much your wheel can go up and down.

The shocks will always be the same length, unless you go full blown long travel which costs upwards of $10k and requires some serious engineering and fabrication skills.

You would also need to be comfortable with voiding your warranty in a big way because you'd be cutting and welding on the frame. Some insurance companies won't even cover your vehicle anymore if you modify the frame in any way.

So let's say the Scout comes with 12" of travel and when the vehicle is static the shock rests at 6" in the middle.

If you add a 3" lift kit, your shock will rest at 9" up the shock shaft. So it will look great and sit up ever taller than factory, but it can also perform WORSE Offroad. Why? Because you exchanged 3" in additional height by sacrificing 3" of down-travel.

Offroad, down travel is king. It is more effective than lockers in many situations, because it allows a wheel that would be airborne, to drop down and put torque down on the terrain. So if you have a lot of down travel you may not even need to engage your lockers because all 4 tires are on the ground applying power.

With a solid axle, when one side it pushed up, the other is pushed down. IFS is independent so there is no opposing force so it doesn't help when it comes to putting power down.

This guy has a phenomenal off-roading channel and breaks things down in a way that most people can understand.


Hope this helps visualize what I am saying.

This is why you see a lot of Toyotas lifting a front wheel when they are off-roading. The down travel is maxed out and there is nothing forcing the tire in the air to make contact with the ground. This issue is compounded by sway bars that try to keep the geometry the same on both sides of your IFS front. It is what gives you the "like I was driving on rails" sensation in turns on the road compared to solid axle vehicles that will be more prone to body roll.

The optional sway bar disconnects that Scout will offer will help with articulation and down travel by allowing one side to droop down further regardless of how compressed the other wheel is. But IFS will always struggle more than a solid axle Offroad due to suspension travel limitations and lack of the opposing side forcing a tire back down to the ground.

Rivians in particular are IFS and IRS (Independent Rear Suspension). So they are really not going to do well on harder trails where a lot of articulation and down travel come into play. If their torque vectoring software isn't optimized and the there is always a tire in the air they will definitely struggle more than other vehicles.
 
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I thought Rivians were marketed as adventure (off-road capable) vehicles. Regardless, I still believe SM can and will do better.
Agreed. They just never hammered the off-road side and SM has made that a major focus along with 8-day a week which I always find odd-I get the concept but wouldn’t a 7-day week truck still do the same things and be factual against the modern day calendar system ??? 🤣