[quote=“Zong,post:243,topic:27647"”]
2 psi lower than the beginning of the day. I started at 42f, 41r. Backed off to 42f, 39r
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Yeah, lowering rear tire pressure will make it even more loose.
[quote=“fairgentleman Z,post:124,topic:27647"”]
Nah all that does is reduce the contact patch, be brave, less tire pressure in the rear = lower cornering stiffness in the rear:
Cf*a - Cr*b > 0 = oversteer Cf*a - Cr*b = 0 = nuetral steer Cf*a - Cr*b < 0 = understeerFor FWD car a is small…
For example a FWD car with 63/37 weight dist a would = 37 and b = 63. Therefore to approach neutral steer the cornering stiffness of the rear should be lower (achieved by running a lower tire pressure).
It’s just that overpressurizing the rear is prefered as it is much easier to control.
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I hope that people read this, learn from your unfortunate mistake, and understand tire pressures more. Lowering pressure in the rear does not increase grip by increasing the contact patch, it makes the sidewalls softer = oversteer.
Think of it this way:
two flat tires up front = big push
two flat tires out back = big rotation