Car feels slow when fully warmed up????????????

[s13drft89]

Ok, i get into my car in the morning I turn it on and let it warm up every morning for 10 minutes. After I let it warm up its maybe half ways to the middle point(where it should be).As I am driving the car feels nice and strong. After I drive on the street for about 5 miles I hop on to the freeway for another 5 miles(everyday to school). Once I get off the freeway, the car feels very slow, feels like it is heat soaked, or something, I cant figure out what it is. Here is my list of mods.S14 SrFMICIntakeFull ExhaustZ32 MafSAFCLarge radiator2100 CFM 14'' Fannew water pump/thermostat

Any ideas on what I should check for?

[nissancefiro]

do you have the stock catalyst converter, just asking cuz some people dont get rid of it when they have sr, but if you do it might be clogged.

[s13drft89]

No, all its got is a muffler. Also the motor is installed in my Z32. Any other help???

[s13drft89]

bummmp

[hotcakes0007]

Its your temp sensor it went bad usually car will run good when cold but when that sensor goes bad it make it run crapper and i belive retards the timeing....

[s13drft89]

changed as well, any other ideas???????????????