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Old Jul 24, 2010 | 02:16 PM
  #306 (permalink)  
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maxcichon
Senior Member
Joined: Sep 2007
Posts: 8,015
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From: MOFN, AL, 70 miles from George
Default Re: Show us your Engine bay

I think it may have been me who posted reduced IAT as per measurement with the OBDII sensor. The one the ECU uses for engine management. It was a true A-B-A-B test. Same day, over a 1 1/2 hour period, same outside temp (as per the dash temperature gauge).

I drove down the interstate for a 30 mile round trip, monitoring the outside and IAT readings, returned home and swapped out the OEM/K&N setup and installed my home-built CAI. Ran the same course and repeated the test, ending up with the CAI installed.

75 MPH
OEM/K&N
Outside Air 84-86 deg F.
IAT (stabilized) 112-115 deg F

75 MPH
CAI
Outside Air 84-86 deg F
IAT (stabilized) 99-102 deg F

Stopping for even a brief time sent both setups into the 125 deg F range. The CAI seemed (not measured) to recover quicker. Less thermal mass.

Any questions?
 
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