RB25 Vacuum line hoses help LOOK! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

twofouroh · 07-23-2012, 09:28 AM

so ive come to a hault in my build i dont know where these damn vacuum hoses go! ive tried looking on other forums but cant find shit, Please have a look and post where the hoses go and if i am correct on some of the stuff i have connected..thanks

greenwood · 07-23-2012, 09:50 AM

is that a isis intake manifold or something. lookup vacuum line routing for that. I would help but I am running a stock intake mani and i know those aftermarket ones get frustrating.

PrimeDirective · 07-23-2012, 10:13 AM

Ok I can answer some of these.

On the throttle body, you can block off the water and vacuume lines. You don't necessarily need them, they are for cold starts. You only need the loose connector on the throttle body to be plugged in. I'm not sure what the other one does, you should do some research on that.

A and C go to your heater hoses. B is a knock sensor. I don't remember D and E.

W, X, Y, and Z. Some of these are optional. The biggest one is for your PCV valve. One goes to the FPR, one goes to your BOV and the 3rd is for your boost gauge.

2 can be blocked off, thats the one that would go to the throttle body. The other ones you should look up.

How-to: Greddy-style Plenum Install - Skylines Australia

Read through that. you could probably work out how everything else goes from his pictures.

twofouroh · 07-23-2012, 10:55 AM

awesome thanks!

07-23-2012, 09:50 AM	#2
greenwood Zilvia Addict Join Date: May 2011 Location: nc Posts: 620 Trader Rating: (5) Feedback Score: 5 reviews	is that a isis intake manifold or something. lookup vacuum line routing for that. I would help but I am running a stock intake mani and i know those aftermarket ones get frustrating.

07-23-2012, 10:13 AM	#3
PrimeDirective Zilvia Member Join Date: Jan 2012 Location: Olympia WA Age: 37 Posts: 266 Trader Rating: (3) Feedback Score: 3 reviews	Ok I can answer some of these. On the throttle body, you can block off the water and vacuume lines. You don't necessarily need them, they are for cold starts. You only need the loose connector on the throttle body to be plugged in. I'm not sure what the other one does, you should do some research on that. A and C go to your heater hoses. B is a knock sensor. I don't remember D and E. W, X, Y, and Z. Some of these are optional. The biggest one is for your PCV valve. One goes to the FPR, one goes to your BOV and the 3rd is for your boost gauge. 2 can be blocked off, thats the one that would go to the throttle body. The other ones you should look up. How-to: Greddy-style Plenum Install - Skylines Australia Read through that. you could probably work out how everything else goes from his pictures.

07-23-2012, 10:55 AM	#4
twofouroh Leaky Injector Join Date: May 2010 Location: Southside ATL Posts: 84 Trader Rating: (0) Feedback Score: 0 reviews	awesome thanks!