My question is how do the fans work? I know you can set them to come on at a certain temperature but when do they turn off? I am just trying to figure out why my temps rise during highway driving and drop when I exit the highway. I have a haltech PS 1000. and a stock radiator

 

from what i hear, that means everything is working as it should, you just aren't getting the airflow you need to the radiator.

check the thread re: overheating by o'malley808 in this subforum, and topillogic posted info about what t1 did to his car to get more airflow

 

looks like im going to try that. did you end up cutting yours?

 

im going to lower my intercooler an inch or so and see if that makes it better

 

u can def control the fans thru an ems. i have mine turn on the moment i start the car. but in the end, this just slows heat soak. if your overheating, bleed the system, try water wetter, maybe cut the bumper. i saw a thread about it and i did it. so far, when moving, i dont see over 185. in bumper to bumper traffic with ac on i saw 207 in 90+ degree heat. i wouldnt worry unless your consistently over 215-220.

 

yea i definitely have an air flow problem. If Im doing 80 then my temps start to drop. Im gonna get that cooling plate to see if it helps. I thought about cutting but the cross beam is right above the part of the bumper i want to cut so i doubt it would make much of a difference unless people think other wise....