Cold today = muchos performance?

[nutcase]

Any car that is intercooled will definitely feel it on a cold day as the air is much denser......and cooler (obviously )

I don't have an intercooler and a cold day makes quite a bit of difference before knock sets in.

 

[The_Dark_Side]

EDIT: Infact on 99% of N/A engines I bet you won't feel a thing.

it would depend on their respective compression ratios.
the higher the ratio the more of a difference you would feel running it on a cold day.
after all a turbocharger basically gives the effect of a huge compression ratio.

 

[The_Dark_Side]

I cant remember the exact physics but IIRC is it not for every 1 degree drop on the intake charge you gain 1bhp or something?

i don't think a blanket statement can apply in this case and, to the best of my knowledge, the difference will vary from engine to engine.