Originally Posted by
GoliathOpponent
Within the forums on the Viper RC site an FDR of 5.6-6.9 is recommended for 17.5T with boost for TC. I was wondering what the recommended FDR (or rollout) is without boost for 17.5T and 21.5T. I am driving on ozite carpet with a TC (rubber tires).
Thank-you.
The FDR that i use for 17.5 non-timing in carpet is usually 3.6-4.0 and for 21.5 i heard the Viper team using the same FDR numbers. Motor timing on the end bell is max. Remember to always check the temperature after 3 minutes to make sure its safe. If the temps are low then you can gear one tooth until it reaches optimal levels (150-175*)
Hope this helps