
If you purchase anything using the links above, I will earn a small commission at no extra cost to you. Now you’ll grab your new 1/4″ vacuum hose and connect it from the blow off valve to your larger port for ideal operation. Vacuum or blow out any plastic shavings that are left in the intake manifold and reinstall. Engine vacuum, load and ambient temperature are used by the ECM. Low end torque and high end power are improved by varying the intake runner length according to a map stored in the ECM.

Lastly, you’ll bust out the epoxy and coat the outside so it won’t leak. On the 6-cylinder M54 engine installed in BMW E60 vehicles, the molded plastic intake manifold is configured as two sets of three runners with variable lengths. which sprays down the inside of the intake valves and intake manifold runners with gasoline. Then carefully thread it in until it is nice and tight. JMC Tuning Equal Length N54 Single Turbo Manifold SOUND. Grab the fitting and wrap some teflon tape around the threads. Turbo compressor (COOL side) to intake manifold/head interface. Run this tap into the hole until you can thread the fitting in. Since 30FF can be from a leak in the pressurized section of the intake track and/or the turbo just isn’t putting out enough, I broke this up into 2 areas: 1. These are not only stronger than the OEM plastic intake manifold they are also. The design has been proven over many years and is now generally regarded as the better option over the forward facing manifolds. This is the same intake manifold as used on the 9 second street N54. Now you’ll use the tap tool to thread the plastic to accept the fitting. N54 N55 Port Injection Intake Manifold & Fuel Rail. Then you’ll start drilling a hole with a small drill bit and eventually work your way up to a 1/4″ bit or until the tap can thread into the hole.

Next you’ll want to find the flat surface next to the old nipple. I like to leave this nipple untouched in case I were to ever go back to stock, then I can just plug the larger port we’re about to create.
#N54 INTAKE MANIFOLD ZIP#
First, cap off the existing port with a vacuum nipple and a zip tie. Allows use to aluminum manifolds with port injection bungs without actually having port injection.Once you have all of the parts, it’s a pretty straightforward procedure. These dummy injectors fit in place of actual port injection injectors to block the holes.

