BMW M4 GT4 User Manual page 14

BMW M4 GT4 // CHASSIS
CRO S S W EI GH T
The percentage of total vehicle weight in the garage acting across the right front and left rear corners. 50.0% is generally optimal
for non-oval tracks as this will produce symmetrical handling in both left and right hand corners providing all other chassis settings
are symmetrical. Higher than 50% cross weight will result in more understeer in left hand corners and increased oversteer in
right hand corners, cross weight can be adjusted by making changes to the spring perch offsets at each corner of the car.
RE AR M A S T ER CYLINDER
The Rear Brake Master Cylinder size can be changed to alter the line pressure to the rear brake calipers. A larger master cylinder
will reduce the line pressure to the rear brakes, this will shift the brake bias forwards and increase the pedal effort required to
lock the rear wheels. A smaller master cylinder will do the opposite and increase brake line pressure to the rear brakes, shifting
brake bias rearward and reducing required pedal effort. 7 Different master cylinder options are available ranging from 15.9 mm /
0.626" (highest line pressure) to 23.8 mm / 0.937" (lowest line pressure).
BR AK E PADS
The vehicle's braking performance can be altered via the Brake Pad Compound. The "Low" setting provides the least friction,
reducing the effectiveness of the brakes, while "Medium" and "High" provide more friction and increase the effectiveness of the
brakes while increasing the risk of a brake lockup.
CRO S S W EI GH T
The percentage of total vehicle weight in the garage acting across the right front and left rear corners. 50.0% is generally optimal
for non-oval tracks as this will produce symmetrical handling in both left and right hand corners providing all other chassis settings
are symmetrical. Higher than 50% cross weight will result in more understeer in left hand corners and increased oversteer in
right hand corners, cross weight can be adjusted by making changes to the spring perch offsets at each corner of the car.
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BM W M4 G T4 // US ER M A N UA L