Okay.

I need you guys' suggestions.



Here's my setup:



24" -4AN SS hose

-4AN Restricted Oil Inlet Fitting

Oil Filter Sandwich Plate



I am going to get the oil feed from the Oil Filter Sand wich Plate, but I am not sure it is safe to use.

I don't want to blow the seals on the turbo due to high oil pressure because the oil feed source is right at the oil filter location.



Do you guys think the Restricted Oil Inlet Fitting can prevent the high pressure to the turbo?



I already put my oil pressure sender on the sandwich plate and the pressure reading is:



70-75 psi at idle (when the engine is cold)

29-39 psi at idle (when the engine is warm)

60-70 psi when cruising at 65 MPH

 

lol i hope its ok to use that because i have mine there...havent driven yet though

 

You need that restrictor inlet fitting, cuz without it, youd have way too much pressure. Anything above 65-70psi will damage the seals, so you dont want to see anywhere near that much on idle/cruise. For safety and peace of mind you'd want it to not see over 50 on maximum load.

just so you know the minimum pressure you need is 5psi on idle and 25 on max load so you don't need a lot.

The thing about that restrictor inlet that sux is that it doesn't say how much pressure it reduces. It'd be nice if you could get your restrictor take the oil pressure reading right before the turbo so you know exactly what the turbo is seeing.

But, It should reduce pressure about 30psi so youd be in the clear fing02.gif

 

if you tap the head, just so im sure, you dont need a restrictor, cuz that oil pressure is pretty low, right?

as long as your using a restrictor you should be fine, but you really dont need a -4AN line. -3 is fine.

 

yah restrictor would be overkill for the head, as it only puts out like 20-30psi max so on idle itd prolly choke the turbo...

 

Why do you want to go through all that trouble running the feed down there anyway?

Tapping the head on the side is just so much more practical IMO and easier to keep an eye on for problems.

 

/\ sometimes its really really hard to get that hex bolt out, i know on both mine and alex's we couldnt get them out, we stripped them to hell, so we tapped from the pressure sender and called it a day. come to find out i guess you can tap from the bolt thats in the head just above the middle of the exhaust ports too, alex said hes bout to give that a whirl for some peace of mind...

 

I have the Greedy sandwich plate, and it is far easier to install than to risk taking out the hex plug. You only need about 6" more line to reach it. You can also attach an oil pressure sender to it, vs. trying to hang one off the head. It looks bad having the sender on the end of the head.
I also believe that it's a more reliable source. I've seen the head pressure in mine get extremely low sometimes. As long as you use a restrictor with the plate, you'll never starve the turbo. It's better to have slightly higher pressure at times, than to starve the bearings at any point.
edit: And ANOTHER reason to get the plate is that you are pulling the oil directly after the filter. From the head, you're getting oil that's already gone through the motor and been heated.

My choice: Go with the sandwich plate and do not forget the restrictor.

 

Oh I know, I doubt anyone has ever gotten that off normally. I had to drill mine out, pressurize the crankcase to keep shavings from getting in. Still only took me like ten minutes to take it out and put the fitting in.

As for head pressure, thats something I didn't know. As for oil temps, really wouldn't make too much difference in the life of the turbo IMO.

 

Heat the area of the hex bolt up before trying to get it out