OK TC it is
Dunno what the internal drive ratio is on the TCXX???
If it is around 2.0 then you have a FDR of about 5.83.
I think this is a bit high for a 17.5
The car will be getting out of corners fast but has no top speed.
Go smaller on the spur and check again.
We run that FDR with 13.5 with timing on our track and that one has a straight of about 35 meters.
Regards Roy
Originally Posted by
gt10r5
Track lenght 25meters, surface carpet 400m2, spur 64dp 36/105T, wheel diameter is 62mm - nosram cpx carpet.
Chassis: hb tcxx
batterry: nano-tech shorty ( good condition after 3 competitions)
New bearing abec5.