Fuel cuts when full boost?

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Old Mar 21, 2014 | 06:28 AM
  #26  
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Default Re: Fuel cuts when full boost?

Originally Posted by WAUKEENEM1
check your wg. i was having same issue a while back. end up being wg not opening at full boost pressure, it'll spiked 1-2 psi past boost pressure then cut off. tried a friend's wg and it open at full boost pressure, problem solved.
I will open the wastegate up and see, I'm thinking it could be that or a bad wastegate placement like someone said before.
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Old Mar 21, 2014 | 06:29 AM
  #27  
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Default Re: Fuel cuts when full boost?

Originally Posted by Black R
..... Wow you guys are patient!
+1

If it worked fine before you changed your BOV then put it back to normal. Otherwise it's the shitty log manifold. Those EBAY manis with the wastegate on runner 1 are known to cause this problem.

If you want a new manifold there are a ton out there of that style but properly designed. I believe most revolve around the Inline Pro manifold. Inline pro makes it in cast and stainless steel. Blox has a knock of which is cheap (around $200). Spooling performance makes a log that will be close to the same design. There are a ton of other knocks off. Look in the HT marketplace or google. You should be able to find what you need.

This is what it should look like, at least for wastegate placement (NOTE: this one is for B series): https://www.inlinepro.com/s1/p-91-in...-manifold.aspx
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Old Mar 21, 2014 | 06:29 AM
  #28  
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Default Re: Fuel cuts when full boost?

Originally Posted by Kid-jdm-teggy
I thought a bov doesn't affect boost creep
It was fine before you adjusted the bov, correct?
It was clearly leaking boost allowing your creep to stay under the boost cut.
Now the leak is fixed, the boost creep is a problem.
Reintroduce the leak to manage the boost creep or turn down the boost.
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Old Mar 21, 2014 | 06:31 AM
  #29  
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Default Re: Fuel cuts when full boost?

Originally Posted by bungalo101
+1

If it worked fine before you changed your BOV then put it back to normal. Otherwise it's the shitty log manifold. Those EBAY manis with the wastegate on runner 1 are known to cause this problem.

If you want a new manifold there are a ton out there of that style but properly designed. I believe most revolve around the Inline Pro manifold. Inline pro makes it in cast and stainless steel. Blox has a knock of which is cheap (around $200). Spooling performance makes a log that will be close to the same design. Look in the HT marketplace or google. You should be able to find what you need.
It did do it once when i was flooring it before i adjusted the bov. So its the bad mani design most likely. Thanks
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Old Mar 21, 2014 | 06:34 AM
  #30  
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Default Re: Fuel cuts when full boost?

Originally Posted by Muckman
It was fine before you adjusted the bov, correct?
It was clearly leaking boost allowing your creep to stay under the boost cut.
Now the leak is fixed, the boost creep is a problem.
Reintroduce the leak to manage the boost creep or turn down the boost.
No it still did it before the adjustment, after the adjustment, i think its spooling faster or something cause i hit 17psi real quick. Or at least quicker than before, maybe im imagining things but i get more creep now
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Old Mar 21, 2014 | 06:38 AM
  #31  
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Default Re: Fuel cuts when full boost?

Just turn that **** down
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Old Mar 21, 2014 | 06:44 AM
  #32  
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Default Re: Fuel cuts when full boost?

Originally Posted by Kid-jdm-teggy
No it still did it before the adjustment, after the adjustment, i think its spooling faster or something cause i hit 17psi real quick. Or at least quicker than before, maybe im imagining things but i get more creep now
It's not spooling faster. You fixed the leak so you are hitting your boost limit faster.

The only way to fix it: Turn the boost down. Get a proper manifold. Turn the boost up & Retune if necessary.
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Old Mar 21, 2014 | 07:02 AM
  #33  
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Default Re: Fuel cuts when full boost?

Originally Posted by bungalo101
It's not spooling faster. You fixed the leak so you are hitting your boost limit faster.

The only way to fix it: Turn the boost down. Get a proper manifold. Turn the boost up & Retune if necessary.
Ok didn't want it coming to this. How much should i turn it down physically. Like how many increments if anybody is running a turbo xs controller.
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Old Mar 21, 2014 | 07:05 AM
  #34  
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Default Re: Fuel cuts when full boost?

Half turn
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Old Mar 21, 2014 | 07:09 AM
  #35  
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Default Re: Fuel cuts when full boost?

Originally Posted by KevinEF7
Half turn
Half turn would equal 1 less psi?
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Old Mar 21, 2014 | 07:14 AM
  #36  
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Default Re: Fuel cuts when full boost?

Every vehicle is different in regards to turns per psi. Turn it counter clockwise half a turn. And test it. If it still hits boost cut then turn it down another half a turn etc.
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