Boost Leak crazyness!?!? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

RedSuns · 05-21-2003, 02:33 PM

Since I put my second SR into my S14 I can't boost over 14psi. When I got my second motor I had to swap over both the intake and the exhaust manifoilds. The intake sides used these two metal gaskets that I am kinda concerned about. I got some soapy water and put it all over the intake pipe but I was unable to find any leaks on the pipes.I started checking with a vaccumm guage at various locations as didn't really find any answers.I have my boost gauge drawing pressure from the FPR and the intake manifold. At idle I am at -18~ psi from the boost gauge but when i put the vaccumm gauge in that location i was pulling -23~psi. Even with my boost controller set to 18~ psi I only see 14psi at my boost guage. When i turn my boost controller down to stock I am only seeing 5-6psi. The car drives fine and rarely stumbles.I just hope I don't have to pull my intake manifold off and I doesn't fix the problem. Any input is greatly appreciated.

aeontony · 05-21-2003, 04:27 PM

Try building one of these:
http://www.vfaq.com/mods/ICtester.html

and run it with an open throttle..

RedSuns · 05-21-2003, 04:41 PM

holy freakins rusted metal batman!!!!......what an awesome creation!!!!!..i will start to asseble it now!!!.....you are the MAN!!!!!

DarkRaptor42 · 05-21-2003, 11:21 PM

seriously tony, thats pretty hardcore

aeontony · 05-21-2003, 11:31 PM

heheh..it's one of those things that you go "why didn't I think of that?" for. It only takes a couple minutes to make, too =)

Hey..are you free this weekend, btw? Specifically Sunday? I've gotta pull my engine out again *sigh*

05-21-2003, 02:33 PM	#1
RedSuns Nissanaholic! Join Date: Jan 2002 Location: Northern VA Age: 43 Posts: 1,865 Trader Rating: (1) Feedback Score: 1 reviews	Boost Leak crazyness!?!? Since I put my second SR into my S14 I can't boost over 14psi. When I got my second motor I had to swap over both the intake and the exhaust manifoilds. The intake sides used these two metal gaskets that I am kinda concerned about. I got some soapy water and put it all over the intake pipe but I was unable to find any leaks on the pipes.I started checking with a vaccumm guage at various locations as didn't really find any answers.I have my boost gauge drawing pressure from the FPR and the intake manifold. At idle I am at -18~ psi from the boost gauge but when i put the vaccumm gauge in that location i was pulling -23~psi. Even with my boost controller set to 18~ psi I only see 14psi at my boost guage. When i turn my boost controller down to stock I am only seeing 5-6psi. The car drives fine and rarely stumbles.I just hope I don't have to pull my intake manifold off and I doesn't fix the problem. Any input is greatly appreciated. __________________ Johnathan 2005 Titan 1996 240SX 1991 240SX 1974 260Z 1996 Honda CBR 600 F3

05-21-2003, 04:27 PM	#2
aeontony Zilvia Junkie Join Date: Jan 2003 Location: Norcal Posts: 303 Trader Rating: (0) Feedback Score: 0 reviews	Try building one of these: http://www.vfaq.com/mods/ICtester.html and run it with an open throttle.. __________________ S14.5 for sale. Must move on with life...=( http://www.zilvia.net/f/showthread.php?t=56822 Au no wa wakare no hajime...

05-21-2003, 04:41 PM	#3
RedSuns Nissanaholic! Join Date: Jan 2002 Location: Northern VA Age: 43 Posts: 1,865 Trader Rating: (1) Feedback Score: 1 reviews	holy freakins rusted metal batman!!!!......what an awesome creation!!!!!..i will start to asseble it now!!!.....you are the MAN!!!!! __________________ Johnathan 2005 Titan 1996 240SX 1991 240SX 1974 260Z 1996 Honda CBR 600 F3

05-21-2003, 11:21 PM	#4
DarkRaptor42 Zilvia Junkie Join Date: Mar 2002 Location: Lodi CA Age: 41 Posts: 542 Trader Rating: (0) Feedback Score: 0 reviews	seriously tony, thats pretty hardcore __________________ 04 WRX STi 90 Sil- Camino R.I.P. AE86 20v MS R.I.P. KA-T www.209forums.com

05-21-2003, 11:31 PM	#5
aeontony Zilvia Junkie Join Date: Jan 2003 Location: Norcal Posts: 303 Trader Rating: (0) Feedback Score: 0 reviews	heheh..it's one of those things that you go "why didn't I think of that?" for. It only takes a couple minutes to make, too =) Hey..are you free this weekend, btw? Specifically Sunday? I've gotta pull my engine out again sigh __________________ S14.5 for sale. Must move on with life...=( http://www.zilvia.net/f/showthread.php?t=56822 Au no wa wakare no hajime...