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This is what I make of tune a car for grip or drifting. This makes it better to anderstand.
So see what U people can do with it.
Problems are prioritised, the best solution is first and to fine tune the problem work down the list.
For Over-steer problems or for more under-steer
General
· Stiffen front stabilizer bar or soften rear stabilizer.
· Stiffen front springs or soften rear springs.
· Decrease front downforce or increase rear downforce.
· See LSD set-up.
· Install hard tyres front, soft tyres rear.
Entering/exiting turns
· Stiffen front dampers or soften rear dampers.
· Increase front brakes or decrease rear brakes.
· See LSD set-up.
· Increase front toe.
Decelerating and bracking in turns only
· Increase front brakes or decrease rear brakes.
· Stiffen front damper bound or soften rear damper rebound.
· See LSD set-up.
Accelerating in turns only
· Stiffen front damper rebound or soften rear damper bound.
· See LSD set-up.
Power-induced (rear-wheel drive cars)
· Soften rear stabilizer.
· Soften rear springs.
· See LSD set-up.
· Increase traction control.
· Increase rear toe.
· Reduce turbo boost.
At high speeds
· Decrease front downforce or increase rear downforce.
For Under-steer problems or for more oversteer
General
· Soften front stabilizer bar or stiffen rear stabilizer.
· Soften front springs or stiffen rear springs.
· See LSD set-up.
· Increase front downforce or decrease rear downforce.
· Install soft tyres front, hard tyres rear.
Entering/exiting turns
· Decrease front brakes or increase rear brakes.
· Soften front dampers or stiffen rear dampers.
· See LSD set-up.
· Decrease front toe.
Decelerating and bracking in turns only
· Decrease front brakes or increase rear brakes.
· Soften front damper bound or stiffen rear damper rebound.
· See LSD set-up.
Accelerating in turns only
· Soften front damper rebound or stiffen rear damper bound.
· See LSD set-up.
Power-induced (front-wheel drive cars)
· See LSD set-up.
· Soften front stabilizer.
· Soften front springs.
· Increase traction control.
· Reduce turbo boost
· Decrease front toe.
At high speeds
· Increase front downforce or decrease rear downforce.
Handling sluggish and unresponsive
o Stiffen springs all around.
o Stiffen dampers all around.
o Stiffen stabilizers all around.
o Decrease front toe.
Handling too harsh and sensitive
o Soften springs all around.
o Soften dampers all around.
o Soften stabilizers all around.
o Increase front toe.
Bottoming
o Increase ride height.
o Stiffen springs all around.
o Reduce downforce all around.
Low speed in corners
o Increase downforce all around.
o Install softer tyres.
Low speed on straightaways
o Lower downforce all around.
o Lower ride height.
Low grip
o Install softer tyres.
o Increase downforce all around.
o Lower ride height
o Soften springs all around.
o Soften dampers all around.
o Soften stabilizers all around.
Loss of grip on bumps
o Soften springs all around.
o Soften dampers all around.
o Soften stabilizers all around.
o Increase front toe.
High tyre wear
o Install harder tyres.
o Eliminate excessive understeer or oversteer.
o Adjust camber.
o Soften springs.
o Soften dampers.
o Soften stabilizers.
Overreving on straightaways
o Reduce gear ratios.
Not reaching top gear on straightaways
o Increase gear ratios.
Poor acceleration
o Increase gear ratios.
Limited Slip Diff Trouble shooting.
The Limited Slip Diff controls the distributions of torque throw the diff to the wheels.
The LSD only comes in effect under engine torque; this is with acceleration and deceleration.
Stiffening the diff to be hard (by setting it to a high setting) will have the diff lockup under the smallest amount of power/torque, making both wheels work together.
With the diff set to it softest the power/torque is no longer split towards both wheels, but towards the wheel with the least amount of traction, meaning it will start to wheel-spin, making the wheel with the most grip keep traction no matter how match power/torque the diff gets.
LSD: Front wheel drive
Decelerating in low-med gears:
Solution for Under-steering:
Initial: lower
Accel: --
Decel: lower
Solution for Over-steer:
Initial: increase
Accel: --
Decel: increase
Accelerating in low-med gears:
Solution for Under-steering:
Initial: lower
Accel: lower
Decel: --
Solution for Over-steer:
Initial: increase
Accel: increase
Decel: --
LSD: Rear wheel drive
Decelerating in low-med gears:
Solution for Under-steer:
Initial: increase
Accel: --
Decel: increase
Solution for Over-steer:
Initial: lower
Accel: --
Decel: lower
Accelerating in low-med gears:
Solution for Under-steer:
Initial: increase
Accel: increase
Decel: --
Solution for Over-steer:
Initial: lower
Accel: lower
Decel: --
Decelerating in med-high gears:
Solution for Under-steer:
Initial: increase
Accel: --
Decel: slightly increase
Solution for Over-steer:
Initial: lower
Accel: --
Decel: slightly lower
Decelerating in med-high gears:
Solution for Under-steer:
Initial: increase
Accel: slightly increase
Decel: --
Solution for Over-steer:
Initial: lower
Accel: slightly lower
Decel: --
LSD: Four-wheel drive
Decelerating in low-med gears:
Solution for Under-steer:
Front Initial: lower
Front Accel: --
Front Decel: lower
Rear Initial: increase
Rear Accel: --
Rear Decel: increase
Solution for Over-steer:
Front Initial: increase
Front Accel: --
Front Decel: increase
Rear Initial: lower
Rear Accel: --
Rear Decel: lower
Accelerating in low-med gears:
Solution for Under-steer:
Front Initial: lower
Front Accel: lower
Front Decel: --
Rear Initial: increase
Rear Accel: increase
Rear Decel: --
Solution for Over-steer:
Front Initial: increase
Front Accel: increase
Front Decel: --
Rear Initial: lower
Rear Accel: lower
Rear Decel: --
NB: Keeping the front LSD setting low, can help keep the front under-steer low then u'll need to tune the suspension and breaking.
Gota Slay`d
So see what U people can do with it.
Problems are prioritised, the best solution is first and to fine tune the problem work down the list.
For Over-steer problems or for more under-steer
General
· Stiffen front stabilizer bar or soften rear stabilizer.
· Stiffen front springs or soften rear springs.
· Decrease front downforce or increase rear downforce.
· See LSD set-up.
· Install hard tyres front, soft tyres rear.
Entering/exiting turns
· Stiffen front dampers or soften rear dampers.
· Increase front brakes or decrease rear brakes.
· See LSD set-up.
· Increase front toe.
Decelerating and bracking in turns only
· Increase front brakes or decrease rear brakes.
· Stiffen front damper bound or soften rear damper rebound.
· See LSD set-up.
Accelerating in turns only
· Stiffen front damper rebound or soften rear damper bound.
· See LSD set-up.
Power-induced (rear-wheel drive cars)
· Soften rear stabilizer.
· Soften rear springs.
· See LSD set-up.
· Increase traction control.
· Increase rear toe.
· Reduce turbo boost.
At high speeds
· Decrease front downforce or increase rear downforce.
For Under-steer problems or for more oversteer
General
· Soften front stabilizer bar or stiffen rear stabilizer.
· Soften front springs or stiffen rear springs.
· See LSD set-up.
· Increase front downforce or decrease rear downforce.
· Install soft tyres front, hard tyres rear.
Entering/exiting turns
· Decrease front brakes or increase rear brakes.
· Soften front dampers or stiffen rear dampers.
· See LSD set-up.
· Decrease front toe.
Decelerating and bracking in turns only
· Decrease front brakes or increase rear brakes.
· Soften front damper bound or stiffen rear damper rebound.
· See LSD set-up.
Accelerating in turns only
· Soften front damper rebound or stiffen rear damper bound.
· See LSD set-up.
Power-induced (front-wheel drive cars)
· See LSD set-up.
· Soften front stabilizer.
· Soften front springs.
· Increase traction control.
· Reduce turbo boost
· Decrease front toe.
At high speeds
· Increase front downforce or decrease rear downforce.
Handling sluggish and unresponsive
o Stiffen springs all around.
o Stiffen dampers all around.
o Stiffen stabilizers all around.
o Decrease front toe.
Handling too harsh and sensitive
o Soften springs all around.
o Soften dampers all around.
o Soften stabilizers all around.
o Increase front toe.
Bottoming
o Increase ride height.
o Stiffen springs all around.
o Reduce downforce all around.
Low speed in corners
o Increase downforce all around.
o Install softer tyres.
Low speed on straightaways
o Lower downforce all around.
o Lower ride height.
Low grip
o Install softer tyres.
o Increase downforce all around.
o Lower ride height
o Soften springs all around.
o Soften dampers all around.
o Soften stabilizers all around.
Loss of grip on bumps
o Soften springs all around.
o Soften dampers all around.
o Soften stabilizers all around.
o Increase front toe.
High tyre wear
o Install harder tyres.
o Eliminate excessive understeer or oversteer.
o Adjust camber.
o Soften springs.
o Soften dampers.
o Soften stabilizers.
Overreving on straightaways
o Reduce gear ratios.
Not reaching top gear on straightaways
o Increase gear ratios.
Poor acceleration
o Increase gear ratios.
Limited Slip Diff Trouble shooting.
The Limited Slip Diff controls the distributions of torque throw the diff to the wheels.
The LSD only comes in effect under engine torque; this is with acceleration and deceleration.
Stiffening the diff to be hard (by setting it to a high setting) will have the diff lockup under the smallest amount of power/torque, making both wheels work together.
With the diff set to it softest the power/torque is no longer split towards both wheels, but towards the wheel with the least amount of traction, meaning it will start to wheel-spin, making the wheel with the most grip keep traction no matter how match power/torque the diff gets.
LSD: Front wheel drive
Decelerating in low-med gears:
Solution for Under-steering:
Initial: lower
Accel: --
Decel: lower
Solution for Over-steer:
Initial: increase
Accel: --
Decel: increase
Accelerating in low-med gears:
Solution for Under-steering:
Initial: lower
Accel: lower
Decel: --
Solution for Over-steer:
Initial: increase
Accel: increase
Decel: --
LSD: Rear wheel drive
Decelerating in low-med gears:
Solution for Under-steer:
Initial: increase
Accel: --
Decel: increase
Solution for Over-steer:
Initial: lower
Accel: --
Decel: lower
Accelerating in low-med gears:
Solution for Under-steer:
Initial: increase
Accel: increase
Decel: --
Solution for Over-steer:
Initial: lower
Accel: lower
Decel: --
Decelerating in med-high gears:
Solution for Under-steer:
Initial: increase
Accel: --
Decel: slightly increase
Solution for Over-steer:
Initial: lower
Accel: --
Decel: slightly lower
Decelerating in med-high gears:
Solution for Under-steer:
Initial: increase
Accel: slightly increase
Decel: --
Solution for Over-steer:
Initial: lower
Accel: slightly lower
Decel: --
LSD: Four-wheel drive
Decelerating in low-med gears:
Solution for Under-steer:
Front Initial: lower
Front Accel: --
Front Decel: lower
Rear Initial: increase
Rear Accel: --
Rear Decel: increase
Solution for Over-steer:
Front Initial: increase
Front Accel: --
Front Decel: increase
Rear Initial: lower
Rear Accel: --
Rear Decel: lower
Accelerating in low-med gears:
Solution for Under-steer:
Front Initial: lower
Front Accel: lower
Front Decel: --
Rear Initial: increase
Rear Accel: increase
Rear Decel: --
Solution for Over-steer:
Front Initial: increase
Front Accel: increase
Front Decel: --
Rear Initial: lower
Rear Accel: lower
Rear Decel: --
NB: Keeping the front LSD setting low, can help keep the front under-steer low then u'll need to tune the suspension and breaking.
Gota Slay`d
