The shop accidentally tossed my oil-feed line = upgrade opportunity? :p

Wondering If I have any options, other then stock...

found the following example which is NOT om617 specific:

 

shop picked one up from the yard, and brazed an end on it:




nothing fancy, but should work nicely.

 

Man your build sure looks great! Looks like it's close to being on the road!

 

found the following from another journal-bearing turbo manufacturer, and was wondering if anyone had any oil-feed pressure data associated with our stock turbos?

thanks,
manny


Holset permits oil return pipes to decline at an overall angle of not less than 30 degrees below horizontal. All turbocharger applications require a pipe of internal diameter greater than 19 mm which has integrated connectors. To ensure oil returns into the engine under all operating conditions, the return connection into the engine sump must not be submerged and the outlet flange of the turbocharger must be 50 mm above the maximum oil level of the engine sump pan. Crankcase pressure should be limited ideally to 0.8 kPa (0.12 lbf/in2) but 1.4 kPa (0.20 lbf/in2) can be accepted by reference to Holset.

Oil pressure of 150 kPa (20 lbf/in2) must show at the oil inlet within 3 - 4 seconds of engine firing to prevent damage to turbocharger bearing system. A flexible supply pipe is recommended.

The minimum oil pressure when the engine is on load must be 210 kPa (30 lbf/in2). Maximum permissible operating pressure is 500 kPa (72 lbf/in2) although 600 kPa (88 lbf/in2) is permitted during cold start up. Under idling conditions pressure should not fall below 70 kPa (10 lbf/in2).

Recommended oil flows for the turbochargers are 2 litre/min at idle and 3 litre/min above maximumtorque speed.

 

The oil pressure on mine is @ 60psi most of the time, 40psi at idle, warm engine.

 

good info...thanks

starting to look like I should perform some pressure measures of the current system...before driving home from the shop :p