Originally Posted by
ct9a gsr
There's essentially two ways to do it...
1. Tap a pressure source either on the compressor housing of the turbo or anywhere on the lower i/c piping. This will give you an accurate measurement of how hard your turbo is working and doesn't take into account pressure drop from the travel distance of the turbo to the intake manifold.
2. T off of the line from the intake manifold/bov. This will give you an accurate measurement of how much pressure is actually reaching the intake manifold after the distance of travel of the pressure itself.
Both have its small advnatages and disadvantages... I personally prefer tapping into the compressor housing of the turbo directly.
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