Background: A while ago I was asked if blocking off the back of the intake duct on the passenger side would change the conditions of the air entering the airbox. The Test: Finally I’ve got around to assessing the before and after temperatures going into the airbox with the duct opening to the engine open
Intake Duct Block Off Plate Test Read More »
Following the installation of the HPA high pressure fuel pump (HPFP) the GTI became slower to start with the engine turning over longer before catching. A data log of the fuel rail pressure versus set point during a third gear pull at 26 psi of boost was also recorded: The fuel rail pressure well below
HPA HPFP Slow Start Read More »
Several months ago results from flow testing a few different charge pipe setups were posted. One combination that was not tested at that time was the stock hot side charge pipe direct to the flow bench. A flow test was conducted with the stock hot side charge pipe to measure airflow. Results from this flow
Stock Charge Pipe Airflow – Part 2 Read More »
