Been a while since I've done this and I know it's probably been covered but just want to be sure when ordering parts to reduce snags during install.

2003 RSX-S, running an RBC with Karcepts TB adapter (has two 1/8" NPT ports) Precision 5858, Tial Q and Tial MV-R.

Looking at using the push-lock type fittings and poly tubing for vacuum lines. Is 4mm vacuum line ok for everythin - I seem to remember using 4mm on the BOV and 6mm on the WG/BC way back when on my B18? Looks like the Tials use 10x1.0mm but people say the 1/8 NPT fittings thread in fine. Turbo isn't here yet so I don't know what size the compressor outlet port is, if it has one?

Routing, no tees:
RBC Adapter port 1 -> Boost solenoid -> Top WG

Turbo Compressor outlet -> Bottom WG

RBC Adapter port 2 -> BOV

Any info is greatly appreciated!

 

Tial recommends 6mm ID min so 1/4" line.
I use 1/4" hose for everything to make it simple and consistent.

 

Easy enough, I like simple myself thanks!

 

Where did u buy the push lock fittings at?

 

I haven't bought them yet but Vibrant makes some. Verocious Motorsports for one has them.

 

You can get them cheap at any supply store like Grainger or harbor freight. The ones vibrant sells are identical but lower cost

You can also get them in bulk on eBay cheap.


I like to use hard line wherever possible and use braided line when things go from engine to chassis. I plan on using hard lines for the bulk of my plumbing, both fluid and air, where appropriate. I'll then adapt to a braided line for things like the blow off valve. Having hard lines (like poly or aluminum, etc) that have mounting support along their routing insure nothing will leak or rub through.