My sons run the V10 21.5's (blinky) at Castle Hill and Riverstone.
The other night (at Rivo) he was running a rollout of 69mm, 65/43 spur pinion 2.94 fdr.
Later in night for the finals, I dropped his rollout to 64mm, 65/40 3.16fdr and notice temps increased slightly from 63 to 68 deg.
Endbell timing is set to 32 deg all night.
Also during the night we were dropping drag brake from 40% to 10%
Motor is due for a cleanout as he has been running it 4-5months.
I'm also interested in what everyone else has tried with the endbell timing.
Dean(13 years old)- Awesomatix A800, Fanton FR-1 13.5 Motor, Fantom batteries, ORCA VX3 esc, KO Propo
Evan(8 years old)- VBC Wildfire D06 Dynamics, Hobbywing Extreme Stock, XERUN V10 21.5, Fantom batteries, KO Propo
Dad(Fred)- VBC Wildfire D06 Dynamics, Hobbywing Stock Spec, R1 Wurks 21.5, KO Propo