I have a science of speed kit on my car running the 3.2 inch pulley. I have an upgraded heat exchanger also. Last night my tuner informed me that my IATs were reaching up to 160. Any ideas on how I can remedy this? What have others done?

 

Without some specifics, your single data point means nothing.

 

Thanks for contributing. What kind of specifics are you looking for? I just want to know what some people have done to reduce IATs

 

This was at how many pulls? Did it increase with each pull? What was the outside temp? Did you have a fan on the heat exchanger? Anyways verify that your pump exchanger have water flowing. What te tuner expected?

 

The outside temp was 65-70. I datalogged 10 minutes of city driving, 10 of highway and two third gear pulls. I haven't looked at the logs myself but I am assuming that it happened during the 3rd gear pulls. They were back to back. There is not a fan on the heat exchanger and the pump is working and flowing fine. When I shut the car off I can pop the hood and the aftercooler is cool to the touch. I will look at the logs when I get home to see exactly where it happened. I got the email early this morning and haven't had a chance to look at the logs yet.

 

this is why a2w is just not as good as fmic for a street driven car.

the cooler gets heat soaked and the moving liquid cant transfer the heat fast enough. remember there are two transfers happeneing, heat gets removed from the air and to the liquid, then the liquid goes to the exchanger and transfers heat from the liquid to the air passing thru it.

a2w really works best when you can dumb ice into it and use it for a drag pass.

the numbers are not awful, just make sure he tunes the air temp fuel adjustment.

you could always spray water, that will def keep those iats under control. ask me how i know rofl.

 

Another member said this:

"After switching from Honda Type 2 coolant to water wetter and deionized water, I observed lowered IAT up to 15 degrees F under the same conditions. I wouldn't use tap water."

Check out this thread: https://www.s2ki.com/forums/index.php?showtopic=823626

 

i forgot to mention one thing, also remember your reading temps in the intake mani. the intake mani gets very hot and turns into an after heater!

as for what liquid to run, i use distilled water and water wetter. however, my climate never gets below freezing.

 

I get below freezing in the winter so that wouldn't be an option. Jeff said he tuned all the knock out so it was good. He suggested maybe trying to run a cold air intake. Cruising the temps were 130ish