Hard oil supply line fabrication - anyone know how? - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 12-28-2015, 12:35 AM   #21
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I tried stainless hard oil lines. They cracked, Twice.
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Old 12-28-2015, 01:01 AM   #22
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Quote:
Originally Posted by bbundy View Post
I tried stainless hard oil lines. They cracked, Twice.
I would expect that in a high vibration area, a stainless tube without a bellows or rubber section, would break.
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Old 12-28-2015, 01:33 AM   #23
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Originally Posted by ryansmoneypit View Post
I would expect that in a high vibration area, a stainless tube without a bellows or rubber section, would break.
It is interesting, I thought it would work. My 323 GTX came with a factory hard line on the pressure side and it doesn't break. The 323GTR motor is the same but has a rubber mount point about mid span. The one I made for my Miata cracked the tube once at the flare tube nut going into the turbo and once at the banjo that I silver brazed on after I made it again.

The Teflon braided line with fire sleeve insulation around it has been trouble free.
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