HomemadeTurbo - DIY Turbo Forum

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- Forced Induction (https://www.homemadeturbo.com/forced-induction-7/)

- - -4an or 4an (https://www.homemadeturbo.com/forced-induction-7/4an-4an-85332/)

civicsihatch09

Oct 25, 2007 06:53 PM

-4an or 4an

What's really the difference?

Can 4an work with turbo oil feed fittings?

Or are all of the fitting -4an?

Thread pattern different maybe?

TorganFM

Oct 25, 2007 07:31 PM

Re: -4an or 4an

http://www.candsspecialties.com/stor.../plumbing.html

AN was developed for military purposes. The size of the fitting is the AN #, in your case 4, over 16... so a 4 AN is really 4/16" or 1/4". The - afaik is just a convention some people use.

civicsihatch09

Oct 25, 2007 08:22 PM

Re: -4an or 4an

Thanks

Random Hero

Oct 25, 2007 08:40 PM

Re: -4an or 4an

i figure its just to make it easier to say

dash four

vs

ayy en 4

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