Forced Induction Custom FI Setup Questions

boost goes up to 5psi, but at high rpm goes to 4.5psi

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Old 05-05-2004, 04:24 PM
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Default Re:boost goes up to 5psi, but at high rpm goes to 4.5psi

iono it was one of them 20 dollar ones from ebay lol.....well i tried blowing air into one of the holes...and i expect that the air will come out the other hole but nothign came out...so....does that mean my mbc aint working?
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Old 05-05-2004, 05:39 PM
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Default Re:boost goes up to 5psi, but at high rpm goes to 4.5psi

Yeah I'd toss that MBC if your running the Deltagate. just last weekend I was running the same setup and spiked 15 psi due to the MBC. Deltagates don't like boost controlers for some reason.
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Old 05-06-2004, 01:30 AM
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Default Re:boost goes up to 5psi, but at high rpm goes to 4.5psi

oooo
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Old 05-07-2004, 03:43 PM
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Default Re:boost goes up to 5psi, but at high rpm goes to 4.5psi

why does it go up to like 7lbs then drop down to 5lbs in every gear? should i buy a new wg or change my boost controller?
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Old 05-07-2004, 06:14 PM
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Default Re:boost goes up to 5psi, but at high rpm goes to 4.5psi

when i took out the turbo controller, it stayed at 5psi in every gear, so does that mean my wg is not compatible with the mbc, or should i get a new wg, or new controller or new both?
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Old 05-08-2004, 03:03 PM
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Default Re:boost goes up to 5psi, but at high rpm goes to 4.5psi

bump
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Old 05-08-2004, 07:23 PM
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Default Re:boost goes up to 5psi, but at high rpm goes to 4.5psi

ive always had problems with those mbc's, spikes and boost would never be steady. i would get another spring for that wastegate(im not sure if you can just swap out your spring or you will need a new wastegate). anyhow if you do get another mbc get a good top quality one, not a cheapy.

did u try the different vaccum setup?
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Old 05-08-2004, 07:40 PM
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Default Re:boost goes up to 5psi, but at high rpm goes to 4.5psi

i see, i see. okay imma get a better one, thx, man my tranny jsut blew yesterday had to spend bank on another one
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