Hydroboost what size lines?

[69bigblock]

I'm finally getting around on puting my hydroboost on. Just not sure which size lines to go with. Don't want to put too small or too big on and mess it up.. I'm running a unisteer R&P/type2 pump/cooler and a mustang hydroboost..

[CarlC]

-6 / 3/8" is fine for the high-pressure in/out. Many also use a -6 for the return, though a -4 works as well.

[MuscleRodz]

-6 pressure, -4 return, but we pefer -6 return if possible

[1969CamaroRS]

I'm confused now Carl. I thought you agreed with John Parsons in the following thread:
https://www.pro-touring.com/forum/showthread.php?t=47999

Who said said -10 is really needed for the return to keep any restriction on the return side. I thought it was overkill but was assured it wasn't. Now I'm confused :dunno:

Is there something different here that I am not considering? Does the Saginaw P-Typ Pump instead of a rack need a bigger line?


Thanks!

[mnm99]

yup -6an