Play with this little Relative Horsepower calculator if you want to find out how your car is affected by the temperatures:

http://www.csgnetwork.com/relhumhpcalc.html

If you go on weather.com and type in your zip code, it will tell you the current actual temperature, humidity, and pressure where you live. Take those values and enter them into the calculator that I linked you to and it will spit out the the % more or less HP that your car has over the same car when driven in a 77 degrees F, 29.235 Inches Hg Barometer, 0 feet altitude, and 0% relative humidity environment.

In order to figure out a solid approximate HP number that your car is operating at, you'd then want to take that % Number that the calculator tells you(Example 108.9%), move the decimal over 2 places to the left, which is the same as dividing by 100(resulting in 1.089 in my example) and then multiply that number by the HP rating that your car put down in the neutral environment(77 degrees, 29.235 Barometer, 0 altitude, 0% humidity).

Example: (Note: * is the symbol for multiplication, / is the symbol for division, the 2 variables are in bold letters)

(108.9235 / 100) * 235 Base WHP = 255.915 Weather-Adjusted Relative WHP

 

Imagine what cold air does to a FI car... sweeeetness!!

 

well damn you guy, it hasnt been below 70 since ive owned my car...freaking FL

 

where did noob bosstedjustin go.

I thought we were noobs.