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Confirming fuel line sizes

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Old 02-14-2019, 05:11 PM
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Confirming fuel line sizes
I am cutting my oem lines down at the frame rail for -6an lines to my HSR. I ordered 3/8 and 5/16 compression to female an adapters. Will this work?
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Old 02-14-2019, 05:25 PM
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Re: Confirming fuel line sizes
Your right on the line size. You can also flare the line to an and use a an fitting and tube nut.
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Old 02-14-2019, 05:56 PM
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Re: Confirming fuel line sizes
Last edited by Tuned Performance; 02-14-2019 at 06:22 PM.
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Old 02-14-2019, 06:22 PM
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Re: Confirming fuel line sizes
Compression fittings are rated for high pressure use
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Old 02-14-2019, 08:27 PM
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Re: Confirming fuel line sizes
Thanks for the help. I have both compression to -an adapters on the way. Now to route the braided lines away from my longtubes is gonna be the next fun part..
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Old 02-14-2019, 09:41 PM
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Re: Confirming fuel line sizes
I'm going to need to do this to my fuel lines also but I don't have a clue as to what's required to get the job done. I know my lines are 5/16 and 3/8 like was stated. Any particular way this should be done? Do the compression type fittings tend to leak so a person should use the type that require the lines to be flared?
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Old 02-15-2019, 10:16 AM
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Re: Confirming fuel line sizes
Originally Posted by eshaw
Do the compression type fittings tend to leak so a person should use the type that require the lines to be flared?
No, friction is the only thing holding the compression piece to the line. Under pressure it can push out of the fitting. This is why you don't use them for applications like fuel systems
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Old 02-15-2019, 11:47 AM
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Re: Confirming fuel line sizes
You can flare both lines to 37 degrees. You just need a tube sleeve and nut.
https://www.hoseandfittingsetc.com/p...eves/parker-tx

https://www.hoseandfittingsetc.com/p...ves/parker-btx

You also need to find a jic 5-6 male to male fitting. This might be the challenge.
parker makes one 6-5 HTX

https://www.hydradynellc.com/product...ion-triple-lok

https://www.hoseandfittingsetc.com/p...hts/parker-htx

https://www.speedwaymotors.com/Speed...ool,29380.html

You can get the an-6 in aluminum or steel. I prefer the steel. More robust.
Last edited by Tuned Performance; 02-15-2019 at 12:10 PM.
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Old 02-15-2019, 11:51 AM
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Re: Confirming fuel line sizes
Originally Posted by scooter
No, friction is the only thing holding the compression piece to the line. Under pressure it can push out of the fitting. This is why you don't use them for applications like fuel systems
I'd stay away from compression fittings in this application.....IMO, not a good idea
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