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MBC question

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Old Nov 5, 2003 | 10:37 AM
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Default MBC question

hey guys, i just bought a SBR manual boost controller and i was just wondering if i would be able to turn my boost up to about 6 psi with the MBC, i have a boosted 420A with a HRC stage 2 kit,.............am i gonna need to turn the fuel pressure up also?
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Old Nov 5, 2003 | 10:59 AM
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Im thinking, that you wouldn't need to since its only 6 psi, but im not sure...
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Old Nov 5, 2003 | 11:04 AM
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If your wategate is set to less than 6psi, then yes you can set the MBC to 6 psi. Are you running a direct line from boost source to WG right now? How much boost is that yielding? If its over 6psi, a MBC wont allow you to lower it.
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Old Nov 5, 2003 | 11:20 AM
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umm im not sure, all i know is that, all i know is that i have a 5 psi acuator on there now, and i am only running about 3 psi cause the FMIC
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Old Nov 5, 2003 | 11:28 AM
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Like skillionaire said, as long as your boost is lower than 6 psi off the wastegate, throwing an mbc into the connection with the actuator will let you raise it to 6.
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Old Nov 5, 2003 | 11:32 AM
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alright thanks, but how would i connect it?
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Old Nov 5, 2003 | 11:56 AM
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Basically the MBC is gonna "T" into the line you currently have going to your Wastegate.
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Old Nov 5, 2003 | 02:38 PM
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Default Re: MBC question

Originally posted by EclipseRSTurbo
hey guys, i just bought a SBR manual boost controller and i was just wondering if i would be able to turn my boost up to about 6 psi with the MBC, i have a boosted 420A with a HRC stage 2 kit,.............am i gonna need to turn the fuel pressure up also?
Depends in what fuel pressures you are running now, I believe at 8-9 psi, you gotta have like 110-120 psi, check the HRC manual and it'll tell you. Just a rule of thumb, more power = more air (higher boost) = more fuel needed.
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Old Nov 7, 2003 | 09:39 AM
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You can run up to 8-9 psi on the stock 420a injectors. If you have the stage 2 HRC kit with FMIC than 8-9 psi will be no problem.
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