Engine Temperature.

ICE power delivered vs engine temperature, extracted directly from the F1 2026 game's TempEfficiencySpline. Hold the engine in the 115–125 °C band for peak power. Initial temperature is 110 °C.

ENGINE TEMP TYRES GEARS

ENGINE POWER BY TEMPERATURE

12 BREAKPOINTS · % OF MAX · F126

TEMP (°C)	TEMP (K)	POWER FACTOR	POWER (% OF MAX)
65°C	338.15	0.9600	96.00
75°C	348.15	0.9700	97.00
85°C	358.15	0.9900	99.00
95°C	368.15	0.9980	99.80
105°C	378.15	0.9999	99.99
115°C	388.15	1.0000	100.00
125°C	398.15	1.0000	100.00
135°C	408.15	0.9950	99.50
145°C	418.15	0.9400	94.00
155°C	428.15	0.9100	91.00
165°C	438.15	0.8850	88.50
175°C	448.15	0.8500	85.00

POWER FACTOR

% OF MAX · ENGINE TEMP °C

Power factor

Optimum band 115–125 °C

NOTES

SOURCE · TempEfficiencySpline

Optimum 115–125 °C — factor 1.000 (peak power).
Initial temperature on session start is 110 °C.
Power loss −6% at 145 °C, −15% at 175 °C — heat management matters more than in F125.
Cold-running penalty is small (−1% at 105 °C, −2% at 85 °C) but the engine still runs cleanest in the optimum band.