Note: braking instability in FR cars happens when the rear end becomes unstable under braking, causing the car to rotate unexpectedly, fishtail, or feel twitchy. This is especially common in high-power or lightweight FR cars, where weight shifts forward aggressively during braking.

 

Common in:

• high power sports cars with high rear torque: Mustang GT, Camaro SS, Supra (A90)

• lightweight coupes with short wheel bases: Mazda RX-7, BMW M2

• classic JDM cars with weak rear grip: Nissan Silvia S13/S14/S15, Mazda Miata (NA/NB) 

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Fixes

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• adjust brake balance forward (shifting brake bias forward sends more braking force to the front wheels, reducing rear instability. This also prevents rear wheel lock-up, making braking more stable.

• stiffen front springs (helps keep weight more evenly distributed)

• stiffen front dampers compression

• stiffen front dampers rebound (prevents the front from diving too much)

• soften rear dampers compression (allows the rear to absorb weight shifts instead of bouncing

• reduce rear ARB stiffness (improves rear compliance and stability)

• increase rear negative camber (keeps more tire contact under braking)

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