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View Full Version : Hard Tubing Vacuum Lines -- Question



Fastbird
11-03-2011, 02:31 AM
So I'm thinking about converting all of my rubber vacuum lines on the purple car (Wastegate, Boost Controller, Alky Control kit, etc) as well as the turbo feed line to solid tubing and AN Fittings with tube nuts.

I know for the turbo feed that the -4 line equates to a 1/4" tube. But......

What would suffice for the vacuum stuff? I have plenty of 3/16" and 1/4" tubing laying around (hundreds of feet, makes LOTS of line lock kits!), but I can't decided if I like the idea of those important boost controlling items being controlled through a 3/16" tube or the larger 1/4" tube. Advice?

RealQuick
11-03-2011, 01:09 PM
I know Tiago on ls1tech did his twin 76mm setup that way on his TA, I would pm him for some info. I don't have a recommendation of experience with hardlines, but I would think 3/16" is plenty big enough.