The R200 is 3.7, the R180 was 3.9 and I did confirm this by a mechanical test i.e. chalk marks on all flanges and turning a few times then calculating the figure.
Next thing is to check the speedo which should now be more accurate ( '81 280ZX gbox ). What tyres does a standard 280 use?
Next thing is to check the speedo which should now be more accurate ( '81 280ZX gbox ). What tyres does a standard 280 use?