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Old 09-18-2011, 09:59 PM
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Re: Intake air temperature

Originally Posted by elvisisdead View Post
My whole problem is that for >$250, I shouldn't have to do a single frigging thing to it. No sensor moves, no header wrap, no moving a filter, no attaching it to the OEM airbox.

On the sensor - doesn't matter where I put it - I now know that >150 degree air is being sucked into it from the engine bay.

As far as wrapping it - I don't think it's going to do much. Yes - it will insulate the intatke and keep i from getting so hot. That's not the problem in my opinion. The problem is that it's not sucking in cool air - it's sucking in air from the engine bay.

Based on the curves of my measurements, when I'm cruising on the freeway, the temps drop to a reasonable level - usually <100. The problem comes in in stop and go and low speed driving. It seems to really heat up when you slow down or idle.

My assertion is that it is a product that was rushed to market somewhat irresponsibly. If all anyone is concerned about is flow rate, then it's great. However, as an earlier poster pointed out, this engine in a stock configuration is only consuming ~500 CFM. By bwoody's own measurements, the OEM intake can provide that.

Don't get me wrong, it sounds awesome. Personally, I don't think it's worth the elevated IAT for the cool sound, but that's a decision that everyone has to make for themselves.
ok then ,lets all go to the drawing board and try to relocate for fresh air

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Old 09-20-2011, 12:30 PM
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Re: Intake air temperature

This is such a common debate across all different makes and models. Coming from the GTO community this same argument went back and forth. Moving or "fooling" the motor with the IAT is not the way to go. Sucking hot engine air is also not a upgrade. More CFM air flow to the TB is certainly an improvement, but only if the air density can remain the same or improve (ie stay cool).

I'm gonna remain stock, probably with a KN dropin for now. What needs to be designed is a air box silencer delete pipe (plastic) and a way to duct true outside engine compartment air in. Someone should get some brake cooling ducts and fab to the fog light orafice
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Old 09-30-2012, 07:54 PM
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Re: Intake air temperature

After a car show in 100+ degree heat I got an inspiration (better late than never). Why not just create a heat shield for the air intake components to insulate them from the very hot air under the WK2 hood!

I was easliy able to cover the intake tube and top of the air box; see the attached photo. Reflectix has thermos-like separation that may be used for applications up to 180 degrees, and the measured temps are well below this value. The insulation coupled with the hood design that forces the stock intake to use cooler outside air sounds promising.


I took a road trip and after several hours of highway driving the intake duct was the temperature of the outside air. This may have been true before adding the insulation, but I can remove it and run a "before" test.
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