Vacuum Block Issues/Routing

My5ABaby · 03-11-2013, 09:18 PM

I have a vacuum block I'm making out of brass fittings. Currently I have my boost gauge (1/8" nylon line), GM MAP sensor (3/16"x12" [needs to be 1/4"]), and FPR (5/32") run off of a single line (5/32") from the manifold. I'm concerned that there's going to be a pressure drop or something from feeding so many things from one 5/32" line.

Is this going to cause any issues?

88turboii · 04-01-2013, 08:00 AM

i would run the FPR off the nipple on the inside of the LIM. the gauge and sensor should be fine split from one source

RETed · 04-01-2013, 09:50 AM

It should be fine.

The only one important vacuum line you need to worry about is for the BOV for a turbo engine.
I don't think you need to worry about this in your case.

-Ted

My5ABaby · 04-01-2013, 02:25 PM

K, good to know. I'm actually currently running without a BOV (very limited) because mine busted... stupid Ebay crap.

03-11-2013, 09:18 PM	#1
My5ABaby Sigh..... Join Date: Feb 2008 Location: Murfreesboro, TN iTrader: (6) Posts: 2,377 Rep Power: 19	Vacuum Block Issues/Routing I have a vacuum block I'm making out of brass fittings. Currently I have my boost gauge (1/8" nylon line), GM MAP sensor (3/16"x12" [needs to be 1/4"]), and FPR (5/32") run off of a single line (5/32") from the manifold. I'm concerned that there's going to be a pressure drop or something from feeding so many things from one 5/32" line. Is this going to cause any issues? __________________ 1986 Sport: 132k miles, 5A (Sapphire Blue Metallic), Tokico Blues, Racing Beat Springs, Custom LED tailights (only S4 LED tails in the world), SSR Mark II, Racing Beat exhaust, S5 black interior, Rotary Resurrection rebuild at 120k miles Community Service Manual RotorWiki "Imagination costs nothing; we could build square locomotives or fly to Mars" - Felix Wankel Yesterday is history, tomorrow is a mystery, but today is a gift. That is why it is called the "present."

04-01-2013, 02:25 PM	#4
My5ABaby Sigh..... Join Date: Feb 2008 Location: Murfreesboro, TN iTrader: (6) Posts: 2,377 Rep Power: 19	K, good to know. I'm actually currently running without a BOV (very limited) because mine busted... stupid Ebay crap. __________________ 1986 Sport: 132k miles, 5A (Sapphire Blue Metallic), Tokico Blues, Racing Beat Springs, Custom LED tailights (only S4 LED tails in the world), SSR Mark II, Racing Beat exhaust, S5 black interior, Rotary Resurrection rebuild at 120k miles Community Service Manual RotorWiki "Imagination costs nothing; we could build square locomotives or fly to Mars" - Felix Wankel Yesterday is history, tomorrow is a mystery, but today is a gift. That is why it is called the "present."

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04-01-2013, 08:00 AM	#2
88turboii destroy, rebuild, repeat Join Date: Feb 2008 Location: Charleston, SC iTrader: (0) Posts: 395 Rep Power: 17	i would run the FPR off the nipple on the inside of the LIM. the gauge and sensor should be fine split from one source