-6an too big for air lines?

[b-morr]

I have -6an to 1/8 NPT fittings laying around that I never used, along with swivel ends and -6an ss line. The 1/8 NPT is the size for my MBC and Tial Wastegate air fittings. I was thinking of using the fittings and line for those since I'm not using it for anything else, and it would look nice. My question is, would -6an line be too big to use?

I plan on tapping into the intercooler piping right after the turbo instead of running a line to the intake.

 

[Boosted98gsx]

For compressible fluids, yes, I would say so. You will lose pressure response by going that big.

Use -4

 

[b-morr]

Ack, well I guess I'll go with regular lines since I would have to buy new stuff.