<![CDATA[Boost question]]>So my turbo at full boost is about 4psi, Normal operating boost is at about 8 or 9psi. Does anyone have a manual boost controller and is pretty handy with it and could help me within the next couple days? All vac lines are hooked up on it and its operating as it should, so it cant be in "limp mode", just low boost (could have been from when it was rebuilt) and id like it to be up more. As far as I know and what I could tell, my boost gauge is working normally.

either a person or a recomended shop even?

]]>https://fargostreet.com/topic/20607/boost-questionRSS for NodeWed, 27 May 2026 23:57:27 GMTWed, 21 Sep 2011 18:55:05 GMT60<![CDATA[Reply to Boost question on Thu, 22 Sep 2011 12:56:11 GMT]]>Pull the hose off of the wastegate and let it eat!

😄

(j/k btw, don't do that)

Rexwagon;324971 wrote:
it may be working but 4psi is pretty low. u need more boost, period.

]]>https://fargostreet.com/post/313216https://fargostreet.com/post/313216Thu, 22 Sep 2011 12:56:11 GMT<![CDATA[Reply to Boost question on Thu, 22 Sep 2011 05:31:48 GMT]]>

Rexwagon;324971 wrote:
it may be working but 4psi is pretty low. u need more boost, period.

agreed! lol

]]>https://fargostreet.com/post/313213https://fargostreet.com/post/313213Thu, 22 Sep 2011 05:31:48 GMT<![CDATA[Reply to Boost question on Thu, 22 Sep 2011 05:08:11 GMT]]>it may be working but 4psi is pretty low. u need more boost, period.

]]>https://fargostreet.com/post/313212https://fargostreet.com/post/313212Thu, 22 Sep 2011 05:08:11 GMT<![CDATA[Reply to Boost question on Thu, 22 Sep 2011 05:02:44 GMT]]>lol, hmm...interesting...so I guess everything is in proper operating order then and I have nothing to worry about. thanks derrick.

]]>https://fargostreet.com/post/313211https://fargostreet.com/post/313211Thu, 22 Sep 2011 05:02:44 GMT<![CDATA[Reply to Boost question on Thu, 22 Sep 2011 04:53:13 GMT]]>http://z31.com/faq/turbo.faq.shtml

4psi is stock according to here. sounds like wastegate pressure is up to 5psi

no offense jeff but 2 mins of google told me that. if it is correct. lol

]]>https://fargostreet.com/post/313210https://fargostreet.com/post/313210Thu, 22 Sep 2011 04:53:13 GMT<![CDATA[Reply to Boost question on Thu, 22 Sep 2011 04:45:08 GMT]]>did u hook the wastegate back up?

u will have to pressure test it for any leaks. u can build a tester out of pvc piping and an air valve. then use a compressor to pump air in.

]]>https://fargostreet.com/post/313209https://fargostreet.com/post/313209Thu, 22 Sep 2011 04:45:08 GMT<![CDATA[Reply to Boost question on Thu, 22 Sep 2011 04:22:00 GMT]]>hmm, wouldnt I be able to hear the leak though? I MIGHT know what I have to do, but I just cant see how any air could escape from how tight the coupler is, but I could put a T-bolt clamp over it though and see what happens.

]]>https://fargostreet.com/post/313208https://fargostreet.com/post/313208Thu, 22 Sep 2011 04:22:00 GMT<![CDATA[Reply to Boost question on Thu, 22 Sep 2011 03:50:11 GMT]]>

JN210;324965 wrote:
Means that a stock Z31 turbo is normally around 8-9psi and is normally what everyone runs, Im only curious as to why mine is at 4. I will probably just end up getting a controller and bringing it up to where I want it. I was just wondering if there was something I hadnt checked yet. No boost solonoid on this car...so perhaps it is in its own way "unhappy" and I am just going to manually bring it up anyway.

No. Just no. Do the stock Z31's have a boost control solenoid? I'd assume wastegate is 8psi...if it's not building that much, you probably have a massive leak you can't see(pressure test the system, don't just do a visual test!!!!!!!!!!!!!!!!!!!!!!!!!!!), or your turbo is fucked.

]]>https://fargostreet.com/post/313207https://fargostreet.com/post/313207Thu, 22 Sep 2011 03:50:11 GMT<![CDATA[Reply to Boost question on Thu, 22 Sep 2011 03:43:35 GMT]]>Means that a stock Z31 turbo is normally around 8-9psi and is normally what everyone runs, Im only curious as to why mine is at 4. I will probably just end up getting a controller and bringing it up to where I want it. I was just wondering if there was something I hadnt checked yet. No boost solonoid on this car...so perhaps it is in its own way "unhappy" and I am just going to manually bring it up anyway.

]]>https://fargostreet.com/post/313206https://fargostreet.com/post/313206Thu, 22 Sep 2011 03:43:35 GMT<![CDATA[Reply to Boost question on Thu, 22 Sep 2011 03:04:43 GMT]]>Put a manual boost controller on it and turn it all the way up. Tune off sounds.

]]>https://fargostreet.com/post/313205https://fargostreet.com/post/313205Thu, 22 Sep 2011 03:04:43 GMT<![CDATA[Reply to Boost question on Thu, 22 Sep 2011 00:49:54 GMT]]>

zbrown;324959 wrote:
Wtf does that first sentence even mean?

No kidding.

So....you are only boosting 4psi but the wastegate is supposed to be 8-9psi? The only way limp mode kills boost is if it has a boost solenoid.

]]>https://fargostreet.com/post/313201https://fargostreet.com/post/313201Thu, 22 Sep 2011 00:49:54 GMT<![CDATA[Reply to Boost question on Thu, 22 Sep 2011 00:23:04 GMT]]>Wtf does that first sentence even mean?

]]>https://fargostreet.com/post/313200https://fargostreet.com/post/313200Thu, 22 Sep 2011 00:23:04 GMT