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.
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.
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.