Speed density greddy emanage blue
Accuracy: MAF systems are more accurate at metering air than speed-density (MAP) systems, like the VPC. Any air that passes through the MAF is going to the motor.Ĥ. Since the BOV is before the MAF, all the problems with open-air BOVs and the MAF are gone. Just some changes to your intercooler tubing.ģ. So unless you make 800HP at 14.7psi, no worries.Ģ. Why? A vessel that starts to be a restriction at 400-450RWHP when at 0psi (stock MAF operation), can flow double with no restriction at 14.7psi, and triple at 29.4psi. HP Limitation: When on the pressure side, the MAF offers no restriction to HP, at least up to 800RWHP. Turbo-> BOV->MAF->connection for idle motor->throttle butterfly (rear one, the one you control with the gas pedal)ġ.
So the trick is (arrows indicate airflow): The wires for the MAF will reach over there if you take off the sleaves for the wiring, to about mid way across the front of the motor (where wire bundle crosses right above the cam gears). If yours is right next to the turbo, that will work fine too. The BOV should be somewhere before the MAF, in my case, the BOV is immediately after the intercooler. Heavy duty heater hose works fine, and can take 50psi with no problem. A hose runs from there to the idle motor. For me, I removed my throttle body and had the traction throttle butterfly removed, one side plugged, and had a 3/4" hose nipple connection welded on there. To get this to work, you need to run a hose from the idle motor to a hose nipple between the MAF and throttle butterfly. In my case, after the intercooler, about halfway between the intercooler and the throttle body. What this means is the MAF is mounted in the tubing between the turbo and the motor. I succesfully have a "blow through" MAF setup on my car.