how do i kno if i have a -3an or -4an oil feed line? I have a oil feed line i thought was a -3an and a buddy came over and said it was a -4an line. how do i kno which one it really is? need to get a restrictor so i need to kno which line i have. thanks!

 

 

lol like i kno

 

so just buy a -3 line if you cant read measurements

xenocron.com has em cheap and already assembled.

 

wel i just measure the size of the oil line with a micrometer and it was 0.328"
is it a -3an oil line?

 

^^^
did u measure OD or ID?

 

Its also important to know what size you should be running. Most turbo manufacturers will have a specific size line requirement.

 

not sure what od and id means but i just measure in the middle of the line.

 

od= outside diameter

id= inside diameter

 

i guess i measure the O.D. then. i measured it couple times again and got 0.328" to 0.344"..... it does not match any of the numbers thats listed in that graph.

 

Thats because the chart is referring to the inside diameter of the hose. You will have to cut it open if you want to know what size it is or some how figure out how thick the tube wall is.

 

u mean im not suppose to measure it with the stainless steel on the outside?

 

the chart is telling you to measure the diameter of the fitting on the end of the line, so you dont need to cut anything. most likely you have female threads on the end of the line so measure the inside of them

 

Take the line with you to your local hardware store, and try screwing it to different size fittings to see what size you have.

At the hardware store the fittings will be called JIC and not AN. They are the same type of fitting though. Here's how to convert from one to the other.

-3 AN = 3/16" JIC
-4 AN = 1/4" JIC
-6 AN = 3/8" JIC
-8 AN = 1/2" JIC
-10 AN = 5/8" JIC
-12 AN = 3/4" JIC
-16 AN = 1" JIC

 

ok cool, this helps out so much, cause i was at OSH yesterday and got a fitting to fit onto my line, the fitting was a 3/16" fitting so that tells me i have a -3an oil feed line. thanks everyone!