Calculate the geometric roll center height from suspension pickup point coordinates for SLA or MacPherson geometry.
Input Parameters
Results
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Roll Center Height
in
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Roll Center Height
mm
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FVSA Length
in
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IC Distance from CL
in
Note: Typical roll center heights: Front 1-4 in, Rear 4-10 in. The roll center migrates during suspension travel. Very low or negative roll centers can cause jacking effects.
Reference
Instant Center = intersection of upper/lower arm lines
FVSA = line from tire contact to Instant Center
Roll Center = where FVSA crosses vehicle centerline
Lower RC = less lateral weight transfer (jacking)
Higher RC = more responsive but more jacking force