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19-20 psi on MBC safe with no tune?

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Old Feb 14, 2005 | 03:28 PM
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DC2Dorifto
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From: Fort Myers FL
19-20 psi on MBC safe with no tune?
I am installing my Hallman MBC this weekend. And if it holds said boost until redline, would it be safe to have it do so before getting the car tuned?

Thanks
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Old Feb 14, 2005 | 04:21 PM
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GBEvo
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Should be fine althoug you might hit boost cut. I hit boost cut in 4th and 5th gear with it set to 20psi. The only thing that will take care of that is a flash or a tune.
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Old Feb 14, 2005 | 04:45 PM
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Turbo13
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yeah mines set at 21, but i got the fuel pump, and dynoflash. it's worth the $200 though to get rid of boost cut.
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Old Feb 14, 2005 | 04:46 PM
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Kwman
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I've got to get a damn fuel pump and a tune im set at 20 psi and hitting boost cut is about the scariest thing ever. Next to having sex with a bear...that was pretty crazy.
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Old Feb 14, 2005 | 05:33 PM
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Evo348
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mine is set at 20psi to redline with a hallman MBc and ive never hit boost cut nor fuel cut. No tune whatsoever and running on 93oct.
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Old Feb 14, 2005 | 05:34 PM
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Kwman
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^Oh yeah....well...did you have sex with a bear?
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Old Feb 14, 2005 | 06:00 PM
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DC2Dorifto
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I'm running 93 oct as well. Thanks for the replies, I have the fuel pump... and geting Dynoflashed in March but I don't want to install the pump before that lol 10mpg.
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Old Feb 14, 2005 | 06:01 PM
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You should be fine, the car runs quiet rich from the factory so you shouldn't have any problems.
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Old Feb 14, 2005 | 06:02 PM
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I am running 22 pounds with 96 octane and a Dynoflash. It never cuts out on me.
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Old Feb 14, 2005 | 06:10 PM
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mifesto
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i would not go above 19 psi with 93 octane.... u WILL go lean on the top end even if people insist its rich, thats on the bottom end......and if its a cold day you will spike....
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Old Feb 14, 2005 | 08:55 PM
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Evo348
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Originally Posted by Kwman
^Oh yeah....well...did you have sex with a bear?
Sex with a bear? WTFFFF??? naw man im not down with zoofilia.
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Old Feb 14, 2005 | 08:57 PM
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inline4g63
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what does boost cut feel like??
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Old Feb 14, 2005 | 08:57 PM
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PoorBoys
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Originally Posted by Evo348
Sex with a bear? WTFFFF??? naw man im not down with zoofilia.
Good call...
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Old Feb 14, 2005 | 10:16 PM
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Titleist71
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Originally Posted by inline4g63
what does boost cut feel like??
sorta like hitting a brick wall..I felt it in a 05 STi
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Old Feb 15, 2005 | 09:30 AM
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DC2Dorifto
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20psi is too much on 93oct? How about after a tune with the Walbro installed?
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