my sc didn't have a thermostat when i bought it so i put in a 195 in and it just over heats. i'm not sure the fan turns on but it does work when i turn on the a/c. the car doesn't seem to like that temp at all. it runs like crap and it doesn't want to start. so i removed it and it runs fine now. the temp never goes past half way. whats up with this?