Summary of recent changes
Official ThunderDome rulebook (rev 2026-01-09). Discipline: Oval & On-Road.
Losi NASCAR kit.
Minimum 945g in race-ready trim.
Spektrum Firma 30A Sensorless Brushless ESC. Stock ESC connectors to motor must be used. Any RC battery plug type may be used to connect battery to ESC. Spektrum 4500Kv brushless motor (Combo ESC & Motor SPMXSEMC14) (Combo ESC, Motor & Receiver SPMXSEMC25). ESC programming OPEN.
59t spur gear. Any 19T .5 mod pinion gear (2mm bore) Robinson Racing #RRP1819 used with SPMXSEMC14 combo; 19T stock pinion gear used with SPMXSEMC25 combo. Any adjustable motor plate allowed.
Open radio & receiver.
Open 2S lipo. Battery must fit in stock battery box in stock battery location. Any RC battery plug type may be used to connect battery to ESC. MAX temp 90F at tech table. 8.40 MAX VOLTAGE.
LOS-1914 (medium) or LOS-1937 (soft) tires & wheels only. Sidewall glueing allowed.
Pro-Line Tundra / Pro-Line F-150 / Pro-Line Silverado (Nastruck bodies only).
All Losi Nascar option parts and any aftermarket parts specific for Losi Nascar allowed. NO SWAY BARS ALLOWED.
3-4 minute heats/qualifiers – 50-250 lap mains (OVAL) / 5 minute qualifiers – 5 minute mains (ON-ROAD).
SXT Black ONLY.