what fdr
 

hi i have a tc5r which i race at stafford indooor club i was using 100 spur to 45 pinion on 64 dp giving me a fdr of 4.44 according to http://abram.eu.org/gear.php so high speed but a bit slower accelaration track can be a bit twisty so i need more accelaration less top speed so i have put a 41 tooth pinion giving a fdr of 4.88 does this sound about right as i dont what to overheat my speedpassion 13.5 brushless motor ? thanks for any replies