what are your air intake temps? Options

[match220]

Hey guys,
Since I have a Gen III in my st204 w/o a GTFour body kit I've been watching my intake temps carefully. (Autronic brand IAT is mounted as close to the engine as I can get it without it being directly above the engine). When I first finished building the engine for the car I still had the insulation on the hood and had a semi covered enclosure for the air filter. The hottest my air intake would get was 80C (crazy!) and that was sitting in traffic with no airflow over my I/C (front mount). Then driving it was around 65C. At night driving it would go down to 60C.

After pondering what to do and talking with some drifting friends, I ended up raising up the rear of my hood 4mm, which isn't even noticeable, removing the weather stripping. And also removing the insulation from the hood and making a full enclosure around the airfilter out of plastic and Plexiglas . NOW my air temps are 60C on a hot day sitting in traffic with no air flow over the I/C, and 45C moving on the freeway on a hot day. At night on the freeway it is 40C.

relevant intake info(shortened from above): big fmic (air/air), and Autronic brand IAT mounted two feet from TB inlet, not directly above engine. Numbers below are before and after a full air filter enclosure and raised rear of hood 4mm.

-------------------------Before-------After
hot day in traffic------80C---------60C
hot day on hwy-------65C---------45C
night on hwy----------60C---------40C

(80c is 176f, 65c is 149f, 60c is 140f, 45c is 113f, 40c is 104f)

So now that I've mentioned my numbers, I would like to know what your numbers are. I'm expecting it to be cooler once I get the hood vents. I would like to know what the norm is for this engine. Also please mention if you have the fmic or tmic

This post has been edited by match220: Aug 3, 2013 - 5:13 PM

[delusionz]

what about your water T? my stock sensor is reading 84c around town and not going back to 82

[match220]

its strange you get such high temps even with a front mount .. its almost discouraging, i was thinking my w2a was responsible for my heat soak as in once the water gets hot theres it just takes so long to cool down again

I believe it is due to not having ventilation. I have a pretty large front mount, but with the front mount I only have the small opening in the stock st204 bumper. So the large i/c is only getting a small amount of airflow over it. I also want to put a water sprayer on my i/c and set the Autronic to trigger it when I go over a certain air temp. Between putting a GTFour bumper and hood on the car, and adding the sprayer to the i/c, I should see the temps drop considerably. Once I add the bumper and a sprayer I'll try to remember to update this thread with the info.

what about your water T? my stock sensor is reading 84c around town and not going back to 82

My normal water temp is around 90C, and that is reading straight from the Bosch sensor that is recommended for the Autronic. It fluctuates around that.