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Old 07-27-2013, 05:30 PM   #1
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What are the numbers for this then? How much does the temp drop with the foil?

My uninformed George Dubbya Gut tells me the plastic box doesn't conduct heat terribly well and the airflow will be significant at the high revs where this actually matters and the air is being drawn directly from outside so.....
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Old 07-27-2013, 07:25 PM   #2
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We regularly see temps 60+ degrees higher than ambient.

We measure/data log with the mass air flow meter that mounts just a couple of inches away from the round opening you see.

Use the gold foil? and the air intake temps drop.

The air box is just one part. We wrap the intake also (but this is not logged) so.. the mass airflow sensor is reading the air coming through the air box/snorkel.

The intake absorbs a LOT more heat do to the block being 6-8 inches below it.
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Old 07-27-2013, 07:34 PM   #3
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I've worked on these in the past.. GM engineers told me about an entire team of people dedicated to air intake temp control on the Corvettes. They asked me about the Porsches.. I didn't know the answer.. then I data logged the info and got back to them. They told me what they do to get the intake temp as close as they can to ambient. I was not able to achieve ambient in the Boxster or Caymans.

I was told this 10+ years ago now.. This isn't the first air box I have done.

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Old 07-27-2013, 08:01 PM   #4
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I moved my filter and box out of the engine bay. Since I don't have a top or sound deadening, I was able to put the filter where the "tunnel" used to be and build a box around it.
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Old 07-27-2013, 08:03 PM   #5
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I moved my filter and box out of the engine bay. Since I don't have a top or sound deadening, I was able to put the filter where the "tunnel" used to be and build a box around it.
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Old 07-27-2013, 09:18 PM   #6
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Good job!!

I had some good idea's on different air box system, but the owner of the car poo-poo'd the idea.

Funny part? I suggested to him we take air from both sides (2 years ago) The new 981's take air from both sides.. LOL
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Old 07-28-2013, 02:58 AM   #7
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I thought about going dual, but is there any cooling issue ditching the fan on the passenger side?
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Old 07-28-2013, 12:26 PM   #8
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what is the mechanism? body temperature of the intake plumbing causing the intake air to get warm? is this is the case, slowing down the air in the intake pipe before the throttle body by putting 2nd inlet plumbing would seem to make the air warm up even more?
am I all wet???
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