Some people do use a CAI for thier turbo, or the factory box which is essentially a CAI. Here's the way I see it.
Lets say your intercooler is 80% efficient.
Your hot air intake sucks in the air and after compressing, it's 150F. That makes the air about 120F at the TB.
Now you get a CAI so the air is now 100F after the compressor. (in this example the other intake is in a hot area of the motor). So with the same intercooler efficiency, you are now at 80F at the throttle body.
Given the standard 1% hp increase for every 10F you lower the intake temp, that's a 7% increase in power.
Chad
93 1.8T
(currently running a hot air intake)
Lets say your intercooler is 80% efficient.
Your hot air intake sucks in the air and after compressing, it's 150F. That makes the air about 120F at the TB.
Now you get a CAI so the air is now 100F after the compressor. (in this example the other intake is in a hot area of the motor). So with the same intercooler efficiency, you are now at 80F at the throttle body.
Given the standard 1% hp increase for every 10F you lower the intake temp, that's a 7% increase in power.
Chad
93 1.8T
(currently running a hot air intake)
