Quote:
Originally Posted by mick53
Wilwood tells me I need 3/16" line for my brakes and not to use 1/4" line.
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The ONLY reason they could say that is if the the caliper will only take fittings for 3/16" tube. The amount of fluid that is being moved is small, so fluid restriction is not a factor. Remember, a caliper piston only moves a few ten thousandths of an inch when applied.
Brake pressure can be around 2,000 psi and there is more total force being applied to the inside of a 1/4" line than a 3/16" one, but typical brake tubing (both tinned steel and stainless steel) can easily handle it. The tubing IS flexing when you brake, but you'd be hard pressed to measure it in your garage. The first place you would notice is the bends will try to straighten out like an air hose, just on a smaller scale.