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Questions about removing Fuel and Load limits

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Old Sep 6, 2014 | 08:57 PM
  #1  
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kpr
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From: memphis
Questions about removing Fuel and Load limits

Here's a short history on the problem I'm having.
Just upgraded from a FP Green to BB Red. When I make a 3rd gear pull, WB is about 11-11.2 until it hits about 5000rpm where it leans to 12 ( yes I lift lol ).
I have been using the standard Fuel cut x2 set to 300. My datalogs hit 337 and holds there.

So I think its hitting Fuel limit. Would removing the Fuel and Load limit correct this?
Please let me know if I have left out any important info.
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Old Sep 7, 2014 | 06:15 AM
  #2  
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From: Gatineau, Quebec, Canada
Fuel/load limit is 379.8 (I would know because i just had that problem on a car yesterday).

To me it sounds more like you might be running out of injector. What's your fuel system like?
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Old Sep 7, 2014 | 06:23 AM
  #3  
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From: Greenville, SC
Sounds less like a tuning issue and more like a fuel system issue. What he asked ^.
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Old Sep 7, 2014 | 11:09 PM
  #4  
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kpr
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From: memphis
Fuel system is dw300 and Id1000 running 93 octane, I would think this is enough but I will do sum logs with injector duty cycle and see. Thanks for responding , I'll post when I have more information
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Old Sep 9, 2014 | 07:14 AM
  #5  
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From: Tri-Cities, WA // Portland, OR
hitting the load (boost) limit will cause fuel cut which will cause the motor to fall on its face. your fuel system is fine for your power level provided that the pump is getting good voltage and isn't failing. my guess would be that you need to retune at the new power levels. if you want afr to match the fuel map, then its necessary to rescale the maf scaling table (again provided that the fuel pump checks out.
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