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Pipe thread or o-ring boss?

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Old Mar 16, 2007 | 12:37 PM
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Default Pipe thread or o-ring boss?

What do you guys prefer in your fuel rails, pipe thread or o-ring boss fittings?

We are going to start making fuel rails soon and I want your input on which way to go. I dislike how pipe thread fittings don't seat all the way, but they are readily available..

LMK
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Old Mar 16, 2007 | 12:55 PM
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I personally HATE pipe thread...but you are right, they are everywhere.
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Old Mar 16, 2007 | 01:53 PM
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Ditto, my reason for liking the Fast rails. Although i'm sure most people don't even know for sure if they're getting pipe or o-rings when they order a set of rails.
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Old Mar 16, 2007 | 01:58 PM
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Plus the ORB fittings flow so much better. From Aeromotives website:

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Old Mar 16, 2007 | 03:43 PM
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i think o ring would be far better than pipe, you dont have to worry about the pipe dope getting into the line and cloging a injector. plus the seal so much better.
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Old Mar 17, 2007 | 06:15 PM
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Good, ORB's it is
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Old Mar 18, 2007 | 09:08 AM
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Additionally, the OAL length of a rail with o'rings is likely to be shorter. [For those with space restrictions.]
IMO, pipe thread rails look like "hardware store" design... AKA: 'Fido's a$$....
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