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Discussion Starter · #1 ·
When do I hit fuel cut I got a 91 9K-T with a MBC and I have been hitting 20psi every night and 17psi during the day
 

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I hit fuel cut-off about 23-25psi but thats after an ECU change. I didn't think you could peak that high without a modified ECU.

Kyle
 

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The MBC lets you get that high withought hitting fuel cut because you are probably maxing out your turbo before the MBC lets boost pressure get to the APC. the MBC does not let boost pressure to the APC until whatever max boost pressure it is set for is reached. so the MBC is obviously set above 20psi. and im gussing that if you are running stock turbo that is its max boost.
 

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Discussion Starter · #5 ·
I had it hooked up with the APC at first but to get the boost up I had to max the MBC out but today I hooked up without the APC and now I am hitting 23psi then I hit fuel cut at like 24psi
 

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man...that's hot... :twisted:

would like to see that on a dyno. you got to be pushing up on some nice numbers with that kind of boost.. I just was wondering how your fuel system is keeping up.
 
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