SR20DET problem after BOV - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

jing · 09-19-2009, 12:20 AM

I have a custom IC setup and the other day I got a flange welded onto the hot pipe for my SSQV. This required my hot pipe to be removed and re-installed.

Once I got my BOV installed, I went for a drive. The BOV worked just fine... until when boosting this one time, I heard a loud "crack" type of sound, like metal hitting metal, so I pulled over right away and popped the hood. To my surprise, I saw that the upper portion of my hot pipe had separated itself from the clamp, so I passed it off as the installer at the shop I went to not tightening it properly, and so I tightened it and went on my way.

A few more boosts here and there, and "crack" popped out my hot pipe yet again. Once again, I put the hot pipe back in place and tightened the clamp and have since been careful as to how much I boost. I noticed that in both situations, my pipe popping out of place happened when I boosted anything over 7psi.

Any suggestions as to what the problem is? This never happened until my BOV was installed..

Sileighty_85 · 09-19-2009, 01:23 AM

Replace all Worm gear clamps with T-Bolt Clamps.
Worm Gear clamps suck.
Make sure there is no oil on the slute or pipe.

When an intercooler system has been installed long enough the slute stick to the piping helping it hold together.

*fliprayzin240sx* · 09-19-2009, 01:51 AM

Get some hair spray, spray the inside of the grommet and then tighten it again. Also, do you have bead around the end of the pipe to keep it from sliding off?!?!

Not You · 09-20-2009, 08:00 PM

Have the guy you went to weld some beads on the pipe. And yes invest in T-Bolt clamps, those china boop worm clams suck.

09-19-2009, 12:20 AM	#1
jing Zilvia Member Join Date: Dec 2007 Location: Vancouver, BC Age: 36 Posts: 291 Trader Rating: (4) Feedback Score: 4 reviews	SR20DET problem after BOV I have a custom IC setup and the other day I got a flange welded onto the hot pipe for my SSQV. This required my hot pipe to be removed and re-installed. Once I got my BOV installed, I went for a drive. The BOV worked just fine... until when boosting this one time, I heard a loud "crack" type of sound, like metal hitting metal, so I pulled over right away and popped the hood. To my surprise, I saw that the upper portion of my hot pipe had separated itself from the clamp, so I passed it off as the installer at the shop I went to not tightening it properly, and so I tightened it and went on my way. A few more boosts here and there, and "crack" popped out my hot pipe yet again. Once again, I put the hot pipe back in place and tightened the clamp and have since been careful as to how much I boost. I noticed that in both situations, my pipe popping out of place happened when I boosted anything over 7psi. Any suggestions as to what the problem is? This never happened until my BOV was installed..

09-19-2009, 01:23 AM	#2
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	Replace all Worm gear clamps with T-Bolt Clamps. Worm Gear clamps suck. Make sure there is no oil on the slute or pipe. When an intercooler system has been installed long enough the slute stick to the piping helping it hold together. __________________ 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

09-19-2009, 01:51 AM	#3
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	Get some hair spray, spray the inside of the grommet and then tighten it again. Also, do you have bead around the end of the pipe to keep it from sliding off?!?! __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

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09-20-2009, 08:00 PM	#4
Not You Leaky Injector Join Date: Sep 2009 Location: FailIDA Posts: 119 Trader Rating: (0) Feedback Score: 0 reviews	Have the guy you went to weld some beads on the pipe. And yes invest in T-Bolt clamps, those china boop worm clams suck.