Originally Posted by
nnick
On the very large track we have I use 7.17 FDR!! I think 9.3 is way too small for large tracks
with a 3.0T Vortex?? I'd say with a LRP and a 14mm Rotor this FDR would be OK, but the Vortex has a 12,25mm rotor, thus higher RPM. BUt anyways, I have to play around more with gearing and timing
