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Turbo oil Feed/Return Lines sizing help.

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Turbo oil Feed/Return Lines sizing help.

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Old

Oct 15, 2022 | 09:00 PM

#1

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Turbo oil Feed/Return Lines sizing help.

Hey fellas, i bought myself a S475 and i am being told a 1/8th NPT feed and 10AN drain is insufficient to keep the turbo alive. I am being told i need a 16AN drain and 6AN feed... is this true or am i being played?
Engine is a LM7 5.3

Old

Oct 15, 2022 | 11:11 PM

#2

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Like a fiddle.

I should add, I have an 80mm 1/8 feed and -10 return.

Old

Oct 16, 2022 | 12:02 AM

#3

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1/8 NPT feed and 10AN return on my S480

Old

Oct 16, 2022 | 08:52 AM

#4

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I Tee my twins into a single-10 into the oil level port which is below the oil level.

Works perfectly

Old

Oct 17, 2022 | 10:46 AM

#5

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I am using a -10 return, S485.

Old

Oct 18, 2022 | 10:28 PM

#6

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-4 feed, 1" i.d. drain never any issues. My drain is just high temp oil resistant hose, and a few stainless hose barbs robbed from an old sprayer pump.

Old

Oct 21, 2022 | 10:02 AM

#7

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From: Armstrong BC

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-4 feed -10 drain

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Old

Oct 21, 2022 | 10:20 AM

#8

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-4 feed with restrictor and 1/2 OD (.411 ID) solid aluminum tube. 3 years, No issues. I chose solid aluminum tube cause I wanted some of the heat in the oil reduced before it enters the sump.

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