Suspension - Volkswagen Golf GTI TCR SEQ 2019 User Manual

Volkswagen Motorsport
Volkswagen Golf

4.7 Suspension

To set-up the suspension, the following spring range can be used in both front and rear axles:
Risk of Coil binding:
Situation
The Golf GTI TCR is delivered with 170mm long main springs. With those springs an unlucky combination of
setup values can lead to coil binding of the main springs. Coil binding means that the coils are in contact to the
next upper and lower coil when reaching the maximum designed travel (block length). This should be avoided
on the main springs as it could lead to spring failure or at least to a loss of length and/or rate. The most helper
springs are designed to be used in block situation.
Which parameters have influence?
Following summarized the parameters which can be adjusted and have an influence on the safety of the spring
length:
Ride Height
-
Springs (rate, block length)
-
Damper Type (compressed length, stroke, gas pressure)
-
Do I have a safe spring setup?
In general the limit can be defined with the value of „Minimum Distance Spring Seats Extended", if following
values are known:
+ Main Spring Block Length
+ Helper Spring Block Length
+ Spring Separator Height
+ Damper Stroke
The setup is safe, if the distance of the spring seats on the extended damper is higher than the addition of the
values above.
GTI TCR SEQ User Manual
Springs
170-60-120
170-60-110
170-60-100
170-60-90
170-60-80
170-60-70
Volkswagen Golf GTI TCR SEQ User Manual
N/mm Remark
120
110 Car delivery front
100
90 Car delivery rear
80
70
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