holset super 40..needs a oil restrictor?

[euro_urs4]

those of you running holsets, do you know if you need an oil restrictor for this turbo from an aan motor?

[Thuppu]

No, no restrictor is needed.

[euro_urs4]

No, no restrictor is needed.

great thanks, was going with it didn't need one, just wanted to verify.

also just to further knowledge myself on this topic, what's the main purpose of an oil restrictor for a turbo? (obviously to let less oil in), but what are the causes of it thanks

[Pirvu Eugen]

Ball bearing turbo's need restrictors.....the 360 bearings turbos need oil film to lubricate the bearings soo...no restrictor for high oil flow.

[euro_urs4]

Ball bearing turbo's need restrictors.....the 360 bearings turbos need oil film to lubricate the bearings soo...no restrictor for high oil flow.

good to know thanks.

[ACQ]

Could the turbo inlet ID influence the engine oil pressure?