SR20DET Compressor Surge HELP! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

JDMxJosh · 08-16-2011, 08:14 PM

When i unplug my waste gate, my BOV runs fine, blows off every time, even in low RPMs, no compressor surge, and it sounds exactly like an HKS BOV.

When i plug my waste gate, my BOV doesn't always work, its nothing but compressor surge, and i'd have to run it a few times to get the BOV to work, and it'd only work in high RPMs, and when it does BOV, the HKS doesn't sound right. But when its unplugged, sounds exactly like an HKS BOV.

thanks for your time.

JDMxJosh · 08-17-2011, 06:24 PM

bump msg length

Sileighty_85 · 08-17-2011, 06:39 PM

Most ppl give the BOV it own Vac Source

EDIT: In a sense the W/G kinda holds air pressure so when you let off its not pulling a strong enough Vac to open the BOV

Def · 08-17-2011, 06:41 PM

Weak vac source. Sounds like they're both on the same circuit. Make sure you have a dedicated line for both the WG and the BOV.

Plus HKS BOVs just like to make a ton of compressor surge anyway, especially at light load. Go with a bypass valve.

Kzoodan · 07-22-2012, 07:56 PM

I am sorry to bring up old thread, but did this every get solved? JDMxJosh did you every figure out what was wrong or atleast how did you fix this? This seems to be very close to the problem i am having with my HKS BOV
thanks
Dan

08-16-2011, 08:14 PM	#1
JDMxJosh Zilvia Junkie Join Date: Jun 2008 Location: Oxnard, California Posts: 446 Trader Rating: (1) Feedback Score: 1 reviews	SR20DET Compressor Surge HELP! When i unplug my waste gate, my BOV runs fine, blows off every time, even in low RPMs, no compressor surge, and it sounds exactly like an HKS BOV. When i plug my waste gate, my BOV doesn't always work, its nothing but compressor surge, and i'd have to run it a few times to get the BOV to work, and it'd only work in high RPMs, and when it does BOV, the HKS doesn't sound right. But when its unplugged, sounds exactly like an HKS BOV. thanks for your time. __________________

08-17-2011, 06:24 PM	#2
JDMxJosh Zilvia Junkie Join Date: Jun 2008 Location: Oxnard, California Posts: 446 Trader Rating: (1) Feedback Score: 1 reviews	bump msg length __________________

08-17-2011, 06:39 PM	#3
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	Most ppl give the BOV it own Vac Source EDIT: In a sense the W/G kinda holds air pressure so when you let off its not pulling a strong enough Vac to open the BOV __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

08-17-2011, 06:41 PM	#4
Def Post Whore! Join Date: Apr 2004 Location: Houston, TX Posts: 2,701 Trader Rating: (16) Feedback Score: 16 reviews	Weak vac source. Sounds like they're both on the same circuit. Make sure you have a dedicated line for both the WG and the BOV. Plus HKS BOVs just like to make a ton of compressor surge anyway, especially at light load. Go with a bypass valve. __________________ S13 Hatch - Goes around tracks quickly DEFSPORT

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07-22-2012, 07:56 PM	#5
Kzoodan Join Date: Jul 2012 Location: Kalamazoo MI Age: 33 Posts: 37 Trader Rating: (0) Feedback Score: 0 reviews	I am sorry to bring up old thread, but did this every get solved? JDMxJosh did you every figure out what was wrong or atleast how did you fix this? This seems to be very close to the problem i am having with my HKS BOV thanks Dan