I got an oil feed line from ATP Turbo too, but I was way off on the length. Brendan of Dyme PSI came to the rescue. He brought Dyme PSI Rattlesnake kits used to mock up oil lines. Each kit is for a different size AN line. The kits include a variety of fittings in order to try any number of combinations to fit any arrangement.
For the oil feed, we mocked up a -4AN line going from the stock oil pressure sender location in the block to the oil feed of the Garrett G25-660. The stock oil pressure sensor is nothing more than an on/off switch. Oil pressure turns the switch off which turns off the light on the dash. So the oil pressure has to go to basically zero for the switch to close and turn on which in turn activates your dash light. By this point, your engine is already going to need a rebuild. Besides, I have my auxiliary oil pressure sensor with the ARK Design MFD2. Brendan mocked up the oil feed line and came up with this arrangement of a 90-degree fitting out of the block and a 90 into the turbo. That black fitting in the middle records how much twist is required between the two end fittings. Yeah…. I did have a 90 going into the turbo, but a straight into the block and the line was also about 8 inches too long. I was way off. And that’s the beauty of the Dyme PSI kit, you can mock everything up before creating the actual oil line and getting it right the first time.
This is the Rattlesnake kit for the -10AN lines which we used for the turbo oil drain line.
Dyme PSI makes this a no-brainer, no guesswork deal!
I had envisioned a 90-degree fitting going into the block. Not an almost 180-degree fitting. I would have been very wrong again. Brendan was careful to ensure the oil drain line was sloping downwards for proper drainage.