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General tuning guide
Spring rate
0-1000m analysis:
Harder spring rate will create more grip. Car with hard spring rate will have faster 0-1000m time. Based on this harder front will give more grip to the front tire which in turn make the car more oversteer.
Higher front spring rate = more oversteer, higher all = more grip.
Body roll analysis:
Harder spring rate will create less body roll, but also make the car more understeer. Harder front will make the car understeer more than harder rear. Spring rate effect on body roll is greater than ride height. Spring rate and damper work together to fight back body roll.
Higher front spring rate = more understeer, higher all = more understeer. work in average, higher average = more understeer.
Track result:
Higher front spring rate = more oversteer when using big front rear value differences, at some value some people believe it give more understeer which could be from body roll effect.
Ride height
0-1000m analysis:
Higher ride height will give faster time on FR car, will give slower time on FF car. Low front and high rear will give fastest time on both type.
Low front and high rear = faster acceleration
Body roll analysis:
Lower ride height will create little more understeer. Higher front will create more understeer than higher rear.
Lower front ride height = more oversteer. work in proportion, lower front = more oversteer, higher front = more understeer.
Track result:
Lower front ride height = more oversteer.
Damper
Track result:
Lower value damping bump better than higher value. Lower front create more understeer, lower rear create more oversteer when using big front rear value differences.
Camber
0-1000m analysis:
Zero value for front and rear will give the fastest time.
Body roll analysis:
Camber should not exceed measured body roll angle for maximum outside tire grip. Body roll is highly influence by spring rate, momentarily by damper & stabilizer, less by ride height, less by downforce and less by tire. Car with heavier front will have less body roll than car with heavier rear.
Track result:
When using high spring rate and low ride height, the car body roll angle is small (usually bellow 2.0). Using value higher than normal will result in less straight line acceleration and less grip in corner.
less front grip = understeer. too high front camber = understeer.
Toe
0-1000m analysis:
Zero value for front and rear will give the fastest time.
Track result:
Using non zero value will reduce lateral grip, so more or less front toe = more understeer. But non zero value will also increase longitudinal grip, so using more or less toe will give more traction (more acceleration/brake power) to the tire.
Stabilizer
Track result:
Higher value damping lateral bump better than lower value. lower front create more oversteer, lower rear create more understeer when using big front rear value differences.
Brake Balance Controller
Track result:
Higher front = more understeer. Usually the best control can be had by using lower front BBC. Increase the front - rear BBC ratio until you get the desired control vs braking power.
Gear ratio
0-1000m analysis:
Short gear ratio give faster time. Lower final drive ratio (with the same top speed) give faster time.
Track result:
Using extra long first gear matching the slowest corner, and using short final gear matching the fastest straight give faster laptime.
Downforce
0-1000m analysis:
maximum downforce give faster time, caused by increased traction.
Body roll analysis:
More downforce reduce body roll angle. Higher front = more oversteer.
Track result:
Using maximum downforce give faster laptime on all track except test track.
Higher front = more oversteer.
LSD
Track result:
LSD really help to tame the torque spin. Using LSD on high powered car wil reduce the chance to spin on Wide Open Throttle. Using high LSD will limit the car turning ability, but it can be cured by correct suspension tuning.
Higher LSD = more understeer.
ASCC
Track result:
ASCC really help stabilize every type of car. A miss tuned car will be more drivable with higher ASCC. But using this tuning can slow down a correctly tuned car.
TSCC
0-1000m analysis:
Higher TSCC give faster time.
Track result:
TSCC increase overall tire traction. Using TSCC in GT2 will increase both acceleration and braking.
Tire
0-1000m analysis:
Stickier tire give faster time
Body roll analysis:
Stickier tire reduce body roll.
Track result:
Using stickier tire increase lap time.
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