Quote:
Originally Posted by Power Hungry
Again, when I get questions about leaving the end of the tube open, I always end up going back to the 60's & 70's cars that had air cleaners with the snorkel that barely made it past the valve covers.
From a performance aspect, cooler air is always more desirable than warmer air. Although, like Jack, I wonder just how much warmer the air really is getting in the intake tube when blasting along at 70 MPH. This would be an easy thing to validate since the programmers have ACT in the PIDS. If it was less than 10º difference, I'd wonder just how necessary it really is to complete the tube connection to the fender.
As for CAIs, there's no question they're drawing some amount of warm air from under the hood. Again, a quick check of the ACT before and after installing will give you the final word.
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I have the OEM airtube open. I also just got my Gryphon. The ACT(PID) and OAT in the factory gauge cluster were 8deg split all day today. 54(OAT) was 62(ACT). The ACT would climb when sitting, but would quickly drop to the 8deg difference when moving.
I am going to get a 12" section of black ABS, but I really don't expect to see the ACT ever reach the OAT.