Engine looses power (HELP!)

[Mellow 240sx]

For some reason about a couple of months ago when its hot out my car looses its power. Its like I will push on the throttle and it takes a sec or two for it to get the rpms up. It almost acts like a turbo with a lot of lag. Its weird and hard to explain but it pisses me off. I was thinking it could be my fuel filter but that would do it all the time...I cant think of anything...got any suggestions.:help

[kim]

did you check the usual suspects? Spark plugs, wires, cap, rotor? these things could have a definite impact on your engine's response, also one more thing it could also be your airfilter it could be clogged up bad. good luck!

[Dattebayo]

Well, the intake does run over top of the radiator...Could it be that your throttle cable is a little slack and has expanded a little due to the heat? Try pulling up the slack.

[PhaneSoul]

try revving it from the engine bay, moving the arm yourself....

[Mellow 240sx]

Well I know that I need a new air filter, it is bad. But I dont understand how that would affect anything when it is hot. It has never done it when its cool or cold outside. I am getting a new filter today so I will switch it and see. Well the Spark plugs, cap, rotor and a wires are brand new but I can still check it out.