What is the best intake system for the Honda?
The stock intake has proven to be slightly restrictive, even on a totally stock vehicle. You can see this as you datalog the vehicle with a pressure sensor reading from the inlet hose, in between the MAF housing and before the throttle body. We performed these tests early in our development to see if the stock intake was truly restrictive before we started to acquire map development parts. If the pressure sensor signal constantly decreases from low RPM to high RPM, then the MAF housing or air filter upstream is likely creating the restriction. If the pressure sensor signal is fairly flat across the entire WOT RPM range (as is seen with a totally stock RX-8 intake) then one has very little reason to replace the intake system because no restriction exists there. This is not the only criteria for determining if a intake system is performing better than another. The quality of airflow across the MAF sensor and the consistency in manufacturing are two additionally important variables. If th
