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Discussion Starter · #1 ·
I putting a remote mount turbo on my ls1 and need to run an oil line to the turbo and oil pump.I was told to use a -4an line to the turbo and a -10an to the return. Am I right to think that i need a 1/4 hose to the turbo and a 5/8 to the return? Can't find any conversion charts anywhere. I'm asking because stainless braided line is out of my price range.
 

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Just to elaborate on -an.

"The AN (Army-Navy) standard was established many years ago by the US
military to set a common measurement for hose and fittings. It designates
the outside diameter (O.D.) of the ridged metal tube that is compatible
with each size of fitting. Still today, this AN dash standard is the
benchmark measurement for military, industrial and the performance hose
applications. These dash sizes are expressed as the numerator of the
fraction, with the denominator always being 16. For example, a -04 port is 4/16 or 1/4-inch."
 

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You got a leaky spark tube...
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RippinRon said:
Just to elaborate on -an.

"The AN (Army-Navy) standard was established many years ago by the US
military to set a common measurement for hose and fittings. It designates
the outside diameter (O.D.) of the ridged metal tube that is compatible
with each size of fitting. Still today, this AN dash standard is the
benchmark measurement for military, industrial and the performance hose
applications. These dash sizes are expressed as the numerator of the
fraction, with the denominator always being 16. For example, a -04 port is 4/16 or 1/4-inch."
Interestingly enough, the Navy uses MS fittings far more frequently than AN. At least on their ships they do, I'm not sure what their aircraft use...
 
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