I've read turbocharged, intercooled engines perform best in cold and dry weather. I bought a WRX last winter, and since the ramp up to the current Texas Summer weather has been gradual, I haven't really noticed a big loss in power. I'm still curious though, what percentage of horsepower do I lose between, say, 50F @ 30% humidity and current 100F and 100%.
Not that it's very relevant, since in curious about a percentage drop, but currently my engine produces 268hp at the crank, and around 258lbft.
Also, is the produced power drop only due to lowered efficiency of the turbo and intercooler in such weather, or are other drivetrain components affected by increases in ambient temperature and humidity as well?
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