does it really matter

Are you serious. If you lose 6 or 7 HP with a bigger fan, so what. How much HP do you think it takes to turn an a/c compressor. These bigger fans are used on a/c cars to pull in more air so they dont get hot. And I am putting it on a non a/c car. so do you really think it will hurt.

That was a joke and you took the bait.