Need help with the grip on my car

I am currently working on a car using a chassis, the grip is all over the place it is impossible to turn over 80 mph without spinning just asking if anyone can help me with sorting it out?

the code is here:

local Tune = {}

--[[Misc]]
	Tune.LoadDelay		= .1		-- Delay before initializing chassis (in seconds)
	Tune.AutoStart		= true		-- Set to false if using manual ignition plugin
	Tune.AutoFlip		= true		-- Set to false if using manual flip plugin
	
--[[Wheel Alignment]]
	--[Don't physically apply alignment to wheels]
	--[Values are in degrees]
	Tune.FCamber		= 1
	Tune.RCamber		= 1
	Tune.FCaster		= 0
	Tune.FToe			= 0
	Tune.RToe			= 0
	
--[[Weight and CG]]
	Tune.Weight			= 3214		-- Total weight (in pounds)
	Tune.WeightBSize	= {			-- Size of weight brick (dimmensions in studs ; larger = more stable)
	 --[[Width]]		14		,
	 --[[Height]]		12		,
	 --[[Length]]		15		}
	Tune.WeightDist		= 51		-- Weight distribution (0 - on rear wheels, 100 - on front wheels, can be <0 or >100)
	Tune.CGHeight		= .8		-- Center of gravity height (studs relative to median of all wheels)
	Tune.WBVisible		= false		-- Makes the weight brick visible
	
	--Unsprung Weight
	Tune.FWheelDensity	= .1		-- Front Wheel Density
	Tune.RWheelDensity	= .1		-- Rear Wheel Density
	Tune.FWLgcyDensity	= 1			-- Front Wheel Density [PGS OFF]
	Tune.RWLgcyDensity	= 1			-- Rear Wheel Density [PGS OFF]
	
	Tune.AxleSize		= 2			-- Size of structural members (larger = MORE STABLE / carry more weight)
	Tune.AxleDensity	= .1		-- Density of structural members
	
--[[Susupension]]
	Tune.SusEnabled		= true		-- Sets whether suspension is enabled for PGS
	
	--Front Suspension
	Tune.FSusDamping	= 500		-- Spring Dampening
	Tune.FSusStiffness	= 9000		-- Spring Force
	Tune.FAntiRoll 		= 50		-- Anti-Roll (Gyro Dampening)
	
	Tune.FSusLength		= 2			-- Suspension length (in studs)
	Tune.FPreCompress	= .3		-- Pre-compression adds resting length force
	Tune.FExtensionLim	= .3		-- Max Extension Travel (in studs)
	Tune.FCompressLim	= .1		-- Max Compression Travel (in studs)
	Tune.FSusAngle		= 80		-- Suspension Angle (degrees from horizontal)
		
	Tune.FWsBoneLen		= 5			-- 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
	
	--Rear Suspension
	Tune.RSusDamping	= 500		-- Spring Dampening
	Tune.RSusStiffness	= 9000		-- Spring Force
	Tune.RAntiRoll 		= 50		-- Anti-Roll (Gyro Dampening)

	Tune.RSusLength		= 2			-- Suspension length (in studs)
	Tune.RPreCompress	= .3		-- Pre-compression adds resting length force
	Tune.RExtensionLim	= .3		-- Max Extension Travel (in studs)
	Tune.RCompressLim	= .1		-- Max Compression Travel (in studs)
	Tune.RSusAngle		= 80		-- Suspension Angle (degrees from horizontal)
		
	Tune.RWsBoneLen		= 5			-- 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

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

--[[Wheel Stabilizer Gyro]]
	Tune.FGyroDamp		= 100		-- Front Wheel Non-Axial Dampening
	Tune.RGyroDamp		= 100		-- Rear Wheel Non-Axial Dampening
	
--[[Steering]]
	Tune.SteerInner		= 45		-- Inner wheel steering angle (in degrees)
	Tune.SteerOuter		= 38		-- Outer wheel steering angle (in degrees)
	Tune.SteerSpeed		= .07		-- Steering increment per tick (in degrees)
	Tune.ReturnSpeed	= .1		-- Steering increment per tick (in degrees)
	Tune.SteerDecay		= 330		-- Speed of gradient cutoff (in SPS)
	Tune.MinSteer		= 10		-- Minimum steering at max steer decay (in percent)
	Tune.MSteerExp		= 1			-- Mouse steering exponential degree
	
	--Steer Gyro Tuning
	Tune.SteerD			= 1000		-- Steering Dampening
	Tune.SteerMaxTorque	= 50000		-- Steering Force
	Tune.SteerP			= 100000	-- Steering Aggressiveness
	
--[[Engine]]

	--		[TORQUE CURVE VISUAL]
	--		https://www.desmos.com/calculator/nap6stpjqf
	--		Use sliders to manipulate values
	--		Edit everything as if your car is NATURALLY aspirated, or as if it lacks a turbo.
	
	Tune.Horsepower		= 1050
	Tune.IdleRPM		= 700
	Tune.PeakRPM		= 6000
	Tune.Redline		= 7000
	Tune.EqPoint		= 10000
	Tune.PeakSharpness	= 20
	Tune.CurveMult		= 0.2
	
	Tune.InclineComp	= 1.2		-- Torque compensation multiplier for inclines (applies gradient from 0-90 degrees)
	
	--Turbo Settings
	Tune.Aspiration		= "Super"												--[[
	[Aspiration]
		"Natural"		: N/A, Naturally aspirated engine
		"Single"		: Single turbocharger
		"Double"		: Twin turbocharger
		"Super"			: Supercharger												]]
	
	Tune.Boost			= 5			--Max PSI (If you have two turbos and this is 15, the PSI will be 30)
	Tune.TurboSize		= 80		--Turbo size; the bigger it is, the more lag it has.
	Tune.CompressRatio	= 9			--The compression ratio (look it up)
	Tune.Sensitivity	= 0.05		--How quickly the Supercharger (if appllied) will bring boost when throttle is applied. (Increment applied per tick, suggested values from 0.05 to 0.1)
	
	--Misc
	Tune.RevAccel		= 1000		-- RPM acceleration when clutch is off
	Tune.RevDecay		= 75		-- RPM decay when clutch is off
	Tune.RevBounce		= 500		-- RPM kickback from redline
	Tune.IdleThrottle	= 3			-- Percent throttle at idle
	Tune.ClutchTol		= 250		-- Clutch engagement threshold (higher = faster response, lower = more stable RPM)
	
--[[Drivetrain]]	
	Tune.Config			= "AWD"		--"FWD" , "RWD" , "AWD"
	Tune.TorqueVector	= 0.5			--AWD ONLY, "-1" has a 100% front bias, "0" has a 50:50 bias, and "1" has a 100% rear bias. Can be any number between that range.
	
	--Differential Settings	
	Tune.FDiffSlipThres	= 50		-- 1 - 100%				(Max threshold of applying full lock determined by deviation from avg speed)
	Tune.FDiffLockThres	= 50		-- 0 - 100%				(0 - Bias toward slower wheel, 100 - Bias toward faster wheel)
	Tune.RDiffSlipThres	= 80		-- 1 - 100%
	Tune.RDiffLockThres	= 20		-- 0 - 100%
	Tune.CDiffSlipThres	= 50		-- 1 - 100%				[AWD Only]
	Tune.CDiffLockThres	= 50		-- 0 - 100%				[AWD Only]
	
	--Traction Control Settings
	Tune.TCSEnabled		= true		-- Implements TCS
	Tune.TCSThreshold	= 3		-- Slip speed allowed before TCS starts working (in SPS)
	Tune.TCSGradient	= 20		-- Slip speed gradient between 0 to max reduction (in SPS)
	Tune.TCSLimit		= 10		-- Minimum amount of torque at max reduction (in percent)
	
--[[Transmission]]
	Tune.TransModes		= {"Auto","Semi","Manual"}												--[[
	[Modes]
		"Auto"		: Automatic shifting
		"Semi"		: Clutchless manual shifting, dual clutch transmission
		"Manual"	: Manual shifting with clutch
		
		>Include within brackets
			eg: {"Semi"} or {"Auto", "Manual"}								
		>First mode is default mode													]]
	
	--Automatic Settings
	Tune.AutoShiftMode	= "RPM"												--[[
	[Modes]
		"Speed"		: Shifts based on wheel speed
		"RPM"		: Shifts based on RPM											]]	
	Tune.AutoUpThresh	= -200		-- Automatic upshift point 	(relative to peak RPM, positive = Over-rev)
	Tune.AutoDownThresh = 1400		-- Automatic downshift point (relative to peak RPM, positive = Under-rev)
	Tune.ShiftTime = .3				-- The time delay in which you initiate a shift and the car changes gear
	
	--Gear Ratios
	
	Tune.FinalDrive		= 0.8		 --		[TRANSMISSION CALCULATIONS FOR NERDS]
	Tune.Ratios			= {			 --		SPEED [SPS]	 = (Wheel diameter(studs) * math.pi * RPM) / (60 * Gear Ratio * Final Drive * Multiplier)
		--[[ R ]]		18.641		,--		WHEEL TORQUE = Engine Torque * Gear Ratio * Final Drive * Multiplier
		--[[ N ]]		0			,
		--[[ 1 ]]		16.641		,
		--[[ 2 ]]		12.342		,
		--[[ 3 ]]		9.812		,
		--[[ 4 ]]		7.765		,
		--[[ 5 ]]		6.272		,
		--[[ 6 ]]		5.045		,
		--[[ 7 ]]		4.572		,
		--[[ 8 ]]		4.072		
	}
	Tune.FDMult			= 1			-- Ratio multiplier (keep this at 1 if car is not struggling with torque)
	
--[[Brakes]]
	Tune.ABSEnabled		= true		-- Implements ABS
	Tune.ABSThreshold	= 20		-- Slip speed allowed before ABS starts working (in SPS) 

	Tune.FBrakeForce	= 4000		-- Front brake force
	Tune.RBrakeForce	= 3000		-- Rear brake force
	Tune.PBrakeForce	= 5000		-- Handbrake force
	
	Tune.FLgcyBForce	= 15000		-- Front brake force [PGS OFF]
	Tune.RLgcyBForce	= 10000		-- Rear brake force [PGS OFF]
	Tune.LgcyPBForce	= 25000		-- Handbrake force [PGS OFF]
	
--[[[Default Controls]]
	--Peripheral Deadzones
	Tune.Peripherals = {
		MSteerWidth				= 67		,	-- Mouse steering control width	(0 - 100% of screen width)
		MSteerDZone				= 10		,	-- Mouse steering deadzone (0 - 100%)
		
		ControlLDZone			= 5			,	-- Controller steering L-deadzone (0 - 100%)
		ControlRDZone			= 5			,	-- Controller steering R-deadzone (0 - 100%)
	}
	
	--Control Mapping
	Tune.Controls = {
		
	--Keyboard Controls
		--Mode Toggles
		ToggleTCS				= Enum.KeyCode.T					,
		ToggleABS				= Enum.KeyCode.Y					,
		ToggleTransMode			= Enum.KeyCode.M					,
		ToggleMouseDrive		= Enum.KeyCode.R					,
		
		--Primary Controls
		Throttle				= Enum.KeyCode.Up					,
		Brake					= Enum.KeyCode.Down					,
		SteerLeft				= Enum.KeyCode.Left					,
		SteerRight				= Enum.KeyCode.Right				,
		
		--Secondary Controls
		Throttle2				= Enum.KeyCode.W					,
		Brake2					= Enum.KeyCode.S					,
		SteerLeft2				= Enum.KeyCode.A					,
		SteerRight2				= Enum.KeyCode.D					,
		
		--Manual Transmission
		ShiftUp					= Enum.KeyCode.E					,
		ShiftDown				= Enum.KeyCode.Q					,
		Clutch					= Enum.KeyCode.LeftShift			,
		
		--Handbrake
		PBrake					= Enum.KeyCode.P					,
		
	--Mouse Controls
		MouseThrottle			= Enum.UserInputType.MouseButton1	,
		MouseBrake				= Enum.UserInputType.MouseButton2	,
		MouseClutch				= Enum.KeyCode.W					,
		MouseShiftUp			= Enum.KeyCode.E					,
		MouseShiftDown			= Enum.KeyCode.Q					,
		MousePBrake				= Enum.KeyCode.LeftShift			,
		
	--Controller Mapping
		ContlrThrottle			= Enum.KeyCode.ButtonR2				,
		ContlrBrake				= Enum.KeyCode.ButtonL2				,
		ContlrSteer				= Enum.KeyCode.Thumbstick1			,
		ContlrShiftUp			= Enum.KeyCode.ButtonY				,
		ContlrShiftDown			= Enum.KeyCode.ButtonX				,
		ContlrClutch			= Enum.KeyCode.ButtonR1				,
		ContlrPBrake			= Enum.KeyCode.ButtonL1				,
		ContlrToggleTMode		= Enum.KeyCode.DPadUp				,
		ContlrToggleTCS			= Enum.KeyCode.DPadDown				,
		ContlrToggleABS			= Enum.KeyCode.DPadRight			,
	}
	
--[[Standardized Values: Don't touch unless needed]]
	
	--[WEIGHT // Cubic stud : pounds ratio]
	Tune.WeightScaling = 1/50	--Default = 1/50 (1 cubic stud = 50 lbs)
	Tune.LegacyScaling = 1/10	--Default = 1/10 (1 cubic stud = 10 lbs) [PGS OFF]
	
return Tune

any assistance will be much appriciated.

I’m assuming you are using something like A-chassis? Normally this isn’t a tutorial on how to use other people’s models.

It’s great that you’ve included all the values, but have you thought about what values you have changed from the default ones?
Does wheel Density affect the traction? I know that on physics based cars it has an immense affect on wheel traction (Friction). I tend to increase the Friction to 2 and the Density from 1-2 for physics based cars, but I have no idea how the creator of the chassis uses these values for their calculations.

You could just try increasing or decreasing values to teach you how each one affects the traction.

Yes it is a chassis, i’ve already increased the friction to 2 and the density up to like 70 that helped a little bit but the car still has very little amount of grip

Nevermind got it working in the end, Went through and tuned the cars setup until i had increased the grip enough that it wouldn’t spin as easily, thanks for the help @Scottifly

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