I just finished a 2600 mile trip with my new CVF intercooler and was hoping someone might have some insight into the temps I was seeing on the trip and maybe compare them to the stock intercooler temps. During this trip I ran my stock tune as well as a 5 Star 91-perf tune.

For the first 1300 mile leg the outside air temps never went above 76*. I monitored IAT1, CAC and IAT2 temps.
For the second 1300 mile leg, 7/8 of the trip was done with outside air temps never going above 76*. The last 1/8 of the trip, outside temps were at 95*. I again monitored IAT1, CAC and IAT2.
I noticed that IAT1 was always 1*-2* of the ambient temps. And noticed that CAC and IAT2 temps were always within just 1*-3* of each other.

NOTE: The truck (2015 XLT 3.5 EB w/3.31 gears) is completely stock (for the moment) except for an AEM drop in filter and the 5 Star tunes. No lift, no CAI, no exhaust, no big tires. I did move the license plate to the side of the front bumper. And the intercooler shutters remain in place and functional. Oh and I wasn't towing anything. It was just me and two pieces of luggage.

What I noticed is that on the stock tune AND the 91 Perf tune, if the temperature outside was cool the delta between IAT1 and CAC was somewhere between 30*-40*.
On the last 1/8 of the trip where the outside temp was 95* the delta between IAT1 and CAC was only about 15*-25*.

Unfortunately I don't remember what my stock CAC temps would have been in temps like these.

I did notice though that there was no heat soak. Once I got over the top of a grade the CAC temp would start coming back down quickly.

Are these temperature deltas identical to the stock intercooler deltas?
Do these deltas seem higher than they should be for an aftermarket intercooler or right in line?

Any insights are greatly appreciated.

 

With my GTX I can only monitor IAT2's. If I get it correct, IAT1 is air inlet temp just past the air cleaner box, CAC temp between CAC and throttle body, IAT2 is at the manifold. IAT2 is my goal as that is just prior to passing into the CC, the end point of intake air.
My CVF Titan runs a bit cooler at steady 55mph by 10 degrees less than OEM. Last long interstate trip over 4th of July 95 degree air no load cruse 70 IAT never exceeded 110 degrees. About a 20 degree improvement over OEM. It's at WOT that the biggest drops in temp happen with my CVF compared to OEM. IAT2 drops fasted and climbs much slower at WOT and never reached within 25 degrees of the OEM high point till well after the throttle was closed.
Hope that makes some sense, at close to moderate throttle some gain concerning lower air temps, low volume air flow. Increase the flow volume with large throtle opening the intake temps drop more and quicker.
I'd need to recheck old logs but, WOT in OEM condition easily passed the 120 degree point where the engine computer starts to pull timing. With the CVF I never get past 100 ITA2 in WOT runs. KM

 

Thanks for the info 2017bluetruck. Very much appreciated.

When the ambient temp outside was 75* and with highway speeds of 75mph and 80mph (Montana) my IAT1 was about 76*, my CAC temp would run around 106*- 113* and IAT2 would hover around 107*- 114*'ish. So I guess at those speeds those temps would be considered normal. Not once though did the CAC and IAT2 temps ever go above 120*, not even when it was 95* outside but by then I was only cruising at 55mph. It seems the hotter it got outside the smaller the delta between IAT1 and CAC/IAT2 became.

I may try removing the shutters temporarily just to see how that affects CAC and IAT2 temps. I'd like to not run them at all but just not sure how aerodynamics and fuel mileage would be affected.