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Old 06-19-2012, 10:41 AM
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brake tubing?

Is there any reason you couldn't use 1/8 or 1/4 tubing for brake lines. The reason I ask is because I have access to plenty of either size 316 full polished in 049 or 065 wall. Also sewage lock fittings in 316 pretty much anything I would need in those sizes. The swagloc fittings have a max psi of around 10,000 psi. Just wondering if there is a volumee of flow issue with the larger or smaller size.

Thanks Kris.

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Old 06-19-2012, 03:42 PM
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Quote:
Originally Posted by 10Tonhammer
Is there any reason you couldn't use 1/8 or 1/4 tubing for brake lines. The reason I ask is because I have access to plenty of either size 316 full polished in 049 or 065 wall. Also sewage lock fittings in 316 pretty much anything I would need in those sizes. The swagloc fittings have a max psi of around 10,000 psi. Just wondering if there is a volumee of flow issue with the larger or smaller size.

Thanks Kris.
Most often 3/16" is used except for the single line running to the rear axle- it's often 1/4" then splits into 3/16" to the rear wheel cylinders.

It might work OK to use the 1/8" to the fronts (shorter run) but if it was me I'd use the 1/4" instead of 1/8", just to be sure there wasn't any flow restriction caused by too-small tubing- especially on a disc brake caliper where more volume is needed to actuate the brakes.

I'm not familiar w/sewage lock fittings ; but I don't recommend compression fittings for brake lines; instead use inverted flare fittings and double flared lines when possible.

Last edited by cobalt327; 06-19-2012 at 03:48 PM.
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