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Hitting Boost Cut On MBC

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Old Mar 1, 2018, 01:26 PM
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Exclamation Hitting Boost Cut On MBC

So I am currently using a Hallman Pro RX Manual Boost Controller, and I am hitting boost cut everytime I exceed something around 320 load
This is what my boost limit table looks like. Why are these values in percentage, is there anyway I can change them to load?
Note: My car has only a MAF sensor and no MAP sensor

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Old Mar 1, 2018, 03:01 PM
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Check your IDC.....it'll be too high.
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Old Mar 1, 2018, 07:34 PM
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Tariq... if you have not played around with your maf scaling then 320 load is well over 2 bar

the values you see there are load values... 230 translates to something like 1.3 or 1.4 bar...

thats why why you are hitting boost cut...

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Old Mar 1, 2018, 08:43 PM
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Originally Posted by 400s View Post
Tariq... if you have not played around with your maf scaling then 320 load is well over 2 bar

the values you see there are load values... 230 translates to something like 1.3 or 1.4 bar...

thats why why you are hitting boost cut...

I have not played with my maf scaling, its completely how it is from factory, except that I am running a K&N intake,

Also, if those are load values, how come I am hitting the cut at 320 rather than 230?
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Old Mar 1, 2018, 08:45 PM
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Originally Posted by RightSaid fred View Post
Check your IDC.....it'll be too high.
How do I know for sure it is high?
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Old Mar 1, 2018, 08:46 PM
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Update

This 320 load where it hits boost cut is 23psi on the boost gauge
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Old Mar 1, 2018, 09:54 PM
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Originally Posted by TariqEvo View Post

How do I know for sure it is high?
Because you got fuel cut.
You'll see it on a data log.
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