Suspension tilting and shaking (A-Chassis 6.81 T)

[pakistanibusdriver]

I have a problem with A-Chassis which is making the suspension tilt to the left first, then it starts shaking when it gets speed.

I could not find any solution to this so I figured that I might be able to ask here, and it is probably the suspension as I have tried turning it off and it works without any problems. Here are my settings:

--[[Suspension]]
Tune.SuspensionEnabled	= true		-- Enables suspension, true or false

--Front Strut
Tune.FSusStiffness	= 9000		-- Spring Force
Tune.FSusDamping	= 500		-- Spring Damping
Tune.FSusLength		= 2			-- Base spring height (in studs)
Tune.FPreCompress	= .3		-- Adds to base spring height (in studs)
Tune.FExtensionLim	= .3		-- Max Extension Travel (in studs)
Tune.FCompressLim	= .1		-- Max Compression Travel (in studs)

Tune.FGyroDampening = 50		-- Front Suspension Gyro Dampening

--Rear Strut
Tune.RSusStiffness	= 9000		-- Spring Force
Tune.RSusDamping	= 500		-- Spring Damping
Tune.RSusLength		= 2			-- Base spring height (in studs)
Tune.RPreCompress	= .3		-- Adds to base spring height (in studs)
Tune.RExtensionLim	= .3		-- Max Extension Travel (in studs)
Tune.RCompressLim	= .1		-- Max Compression Travel (in studs)

Tune.RGyroDampening = 50		-- Rear Suspension Gyro Dampening

--Old Suspension Settings, applies if there is no SuspensionGeometry for the respective wheel
Tune.FSusAngle		= 80		-- Spring Angle (degrees from horizontal)
Tune.FWsBoneLen		= 4			-- Wishbone Length
Tune.FWsBoneAngle	= 0			-- Wishbone angle (degrees from horizontal)
Tune.FAnchorOffset	= {			-- Suspension anchor point offset (relative to center of wheel)
	--[[Lateral]]		-.4		,	-- positive = outward
	--[[Vertical]]		-.5		,	-- positive = upward
	--[[Forward]]		0		}	-- positive = forward
Tune.FSpringOffset	= {			-- Suspension anchor point offset (relative to ABOVE anchor offset) (Avxnturador)
	--[[Lateral]]		0		,	-- positive = outward 
	--[[Vertical]]		0		,	-- positive = upward
	--[[Forward]]		0		}	-- positive = forward

Tune.RSusAngle		= 80		-- Spring Angle (degrees from horizontal)
Tune.RWsBoneLen		= 4			-- Wishbone Length
Tune.RWsBoneAngle	= 0			-- Wishbone angle (degrees from horizontal)
Tune.RAnchorOffset	= {			-- Suspension anchor point offset (relative to center of wheel)
	--[[Lateral]]		-.4		,	-- positive = outward
	--[[Vertical]]		-.5		,	-- positive = upward
	--[[Forward]]		0		}	-- positive = forward
Tune.RSpringOffset	= {			-- Suspension anchor point offset (relative to ABOVE anchor offset) (Avxnturador)
	--[[Lateral]]		0		,	-- positive = outward 
	--[[Vertical]]		0		,	-- positive = upward
	--[[Forward]]		0		}	-- positive = forward

--Aesthetics	
Tune.SusVisible		= true			-- Suspension Visible
Tune.SusRadius		= .2			-- Spring Coil Radius
Tune.SusThickness	= .1			-- Spring Coil Thickness
Tune.SusColor		= "Bright red"	-- Spring Color [BrickColor]
Tune.SusCoilCount	= 6				-- Spring Coil Count

[Scottifly]

Doesn’t A-Chassis have a ‘Read Me’ script that describes how to fine-tune their settings?

Are your wheels spinning on their centers? Are they made of Meshparts or Unions that aren’t perfectly round?
Have you tried changing the force of the shocks and their damping?
It sounds like the weight of your player is tilting the suspension.

Also, really small cars and really large cars will definitely need to be tuned according to their needs.

[pakistanibusdriver]

1. The wheels have no effect on it, as they utilize spheres which are used in default a-chassis
2. I will try to do this and update the post accordingly
3. No, the entire character is massless through a script
4. Of course, although the issue does not occur when using the same scripts on an equally big vehicle.

The entire vehicle has the same collision group with collisions turned off for other parts in the same group. The road is not the problem as the issue stays when testing on a baseplate.