Note: High-speed instability in FF cars usually feels like the car is twitchy, floating, or unstable on straights or fast corners. Unlike RWD or AWD cars, FF rely on the front wheels for stability and drive, which makes them sensitive to aero balance, suspension setup, and weight distribution — especially at high speed.

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Causes

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• Front-heavy layout: causes chassis pitch and inconsistent grip over crests

• Rear-end too soft or underdamped: rear starts swaying or skipping at high speed

• Too much front toe-out: front end darts or becomes twitchy at speed

• Insufficient rear toe-in: rear lacks straight-line tracking → car can feel nervous

• Low rear spring/damping rates: rear feels floaty or unpredictable on high-speed direction changes

• Lack of aero balance: no rear downforce = yaw instability, especially on crests or throttle lifts

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Fixes

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• increase front aero (keeps the front planted for high speed stability)

• stiffen front springs (prevents excessive lift and roll)

• stiffen rear springs (match to front to maintain balance at speed)

• stiffen front damper compression (improves responsiveness at high speed)

• stiffen front damper rebound (stabilizes steering recovery)

• stiffen rear damper rebound (reduces rear bouncing)

• increase front negative camber (to increase grip on cornering)

• neutral are slight front toe-in

• add rear toe-in

• slightly higher rear tire pressure

• balanced or slightly lower front tire pressure