thermoastat is probly no good, switch it out to a colder one.

 

Or you could do like i did and take the center section of the t-stat out, and put the outer portion back in the car. It helps restrict the flow a little, so it will warm up a little bit, but flows usually more than if the stock t-stat is in there. Oh, and don't plan on driving it in the winter if you do that, cause it won't want to warm up at all Some people say not to do this, but I did it to my friend's b18 w/t3/t4 in his 91 hatch and it loved it.