Couple Questions About SR Vacuum Lines

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2_Liter_Turbo
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Joined: Sat Jan 24, 2004 10:41 am
Car: _________________
'96 S14 Coupe: SR20VET
'90 R32 TH1 GTR: RB26DETT
'92 S13 Fastback: SR20DET
'11 V36 Sedan: VQ25HR
'06 GMT800 2500HD: LBZ Duramax
Location: DFW, Texas
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Ok, the info I have is from Heavy Throttle. I am finishing up my swap, and have a couple questions. This first pic I'm pretty sure of what to do except when it comes to what the FPR line tees off to:



This is what I believe to be the "boost control solenoid". Am I correct? Also, where do the various lines go to????? This one is the main one I am having problems with:



This pic, I think the nipple on the cold pipe is supposed to go to the boost control solenoid, but I am unsure. Will someone please clarify this for me:



Thanks for any help, I am trying to get the swap finished by tonite, lol.


Silvia007
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Joined: Thu Jul 25, 2002 6:04 am
Car: 93 Nissan 240SX SE Fastback

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Bottom Pic nipple on left goes to boost controller then to wastegate. Nipple on the right, I just plugged up. I don't have stock plumbing but that's how I hooked up my lines. I'd consult the FSM, there's plenty available online.

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SpeedRacer1
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Car: 1990 240SX, G35

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2_Liter_Turbo
Posts: 2674
Joined: Sat Jan 24, 2004 10:41 am
Car: _________________
'96 S14 Coupe: SR20VET
'90 R32 TH1 GTR: RB26DETT
'92 S13 Fastback: SR20DET
'11 V36 Sedan: VQ25HR
'06 GMT800 2500HD: LBZ Duramax
Location: DFW, Texas
Contact:

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Pimp, thanks.

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2_Liter_Turbo
Posts: 2674
Joined: Sat Jan 24, 2004 10:41 am
Car: _________________
'96 S14 Coupe: SR20VET
'90 R32 TH1 GTR: RB26DETT
'92 S13 Fastback: SR20DET
'11 V36 Sedan: VQ25HR
'06 GMT800 2500HD: LBZ Duramax
Location: DFW, Texas
Contact:

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Also, why is there 2 vacuum ports on the Greddy BOV? Which one do I hook up to the TB?


Silvia007
Posts: 1587
Joined: Thu Jul 25, 2002 6:04 am
Car: 93 Nissan 240SX SE Fastback

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Ahh.. this is where people fail to see the greatness of the Type S. The first nipple goes to a vac line where as the small nipple goes to the hot pipe or cold pipe. What it does is supply the bottom side of the diaphram with boost. When you let off the gas, there's vacuum on pulling on the diaphram from up top, boost pushing diaphram from bottom = twice the speed that the valve moves at. I know this increase the response of the valve, but I think it's to assist if you want to run a much more higher spring tension.

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2_Liter_Turbo
Posts: 2674
Joined: Sat Jan 24, 2004 10:41 am
Car: _________________
'96 S14 Coupe: SR20VET
'90 R32 TH1 GTR: RB26DETT
'92 S13 Fastback: SR20DET
'11 V36 Sedan: VQ25HR
'06 GMT800 2500HD: LBZ Duramax
Location: DFW, Texas
Contact:

Post

That makes sense. Sweet. So should I just tee it off the line on the cold pipe that goes to the wastegate actuator (which is already tee'd)? Or run it's own line?


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