Getting back to the turbocharger itself, this is where the oil drain hose installs. From this fitting, the oil circulates back to the oil pan.
This 11/48-inch NPT x 51/432-inch 90-degree boost fitting installs in the turbocharger compressor housing.
Remember the water lines? Turbonetics recommends they be installed onto the turbocharger before putting it in place. They're 52 inches long and will need to be heat wrapped.
After all that, we're able to mount the assembly into place. At this point, we need to mount the turbocharger and connect the water and oil lines. Use a V-band clamp to attach downpipe 1 to the turbocharger exhaust housing.
Now we find boost tube 1 to install the Raptor blow-off valve, which is used as a second safety measure to keep from sending too much boost through the engine. When the throttle closes under driving conditions, the valve allows the extra boost pressure to blow-off. Without one, the turbocharger or the throttle blade could get damaged because the boost will find a place to escape.
Here's where boost tube 1 and the blow-off valve are installed. The tube is installed between the intercooler and the turbo. A coupler connects boost tube 1 to boost tube 2, which is connected to the intercooler.
Both tubes leading from the intercooler use framerail passages to enter the engine compartment. This is another area where it seems as though these components won't work, but trust us-they fit. The Zamboni team did this part of the installation Orange County Choppers-style. They mocked up everything minus hose clamps to make sure we had everything in the right place. Then we went back and installed hose clamps to finish this part of the job.
Here's where boost tube 3 installs. This tube takes air that has been cooled by the intercooler and feeds it to the engine via boost tube 4.
This is boost tube 4, which leads from boost tube 3 to the throttle body. You can see that Turbonetics provides a new upper radiator hose. We've also mounted the heat shield onto the turbocharger's exhaust housing to keep underhood heat to a minimum.
Here's the finished product. The air intake tube is mounted to the turbocharger and includes a mass air meter provision. The factory mass air meter is modified, and a new air temperature sensor is installed in boost tube 4, which is the one connected to the throttle body. As you can see, the overflow reservoir is relocated to the shock tower. Turbonetics includes 5 quarts of its specially formulated synthetic oil and recommends changing it every 3,000 miles.