What's the best MBC out there?
05-13-2004, 06:20 AM
#16
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Join Date: Feb 2003
Location: 12.9 / 105+
Posts: 488
Car Info: black my03 5mt wrx s/w
while educating people about the dangers of uncontrolled/improperly set boost levels is good, it CAN be done safely with an MBC. the guy had one on his car for 2 years, right? we can assume he knows how to do it properly so as to avoid this spectre of "immediate and certain engine destruction."
personally, i wouldn't use an mbc on an 04 though, due to that slow transition to open loop fuel.
having said that, if you want good quality the hallman units seem to be very well made. if i was to get another mbc, i'd get this one: http://www.boostcontroller.com/index...26category%3D5
personally, i wouldn't use an mbc on an 04 though, due to that slow transition to open loop fuel.
having said that, if you want good quality the hallman units seem to be very well made. if i was to get another mbc, i'd get this one: http://www.boostcontroller.com/index...26category%3D5
05-13-2004, 10:38 AM
#17
Angry Dan
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Car Info: 05 Evo VIII
Originally Posted by blackwagonrx
i've tried resetting my ecu but i get the same results. .5 bar at all the gears
Check all your contections, sounds like you are only making wastegate boost....(I think that's what it's called)
05-13-2004, 08:08 PM
#18
Registered User
Join Date: Nov 2002
Location: St. Louis, MO
Posts: 50
Car Info: 2003 WRX wagon
I've had my Go Fast Bits Atomic boost controller on my '03 for a year now and it's great. Holds boost rock solid consistently. I have it set at 1bar since I haven't installed my catless uppipe yet. Once I do, I'll up it to 15.5 for daily, a touch higher for Auto-x. Read up on PT/FB, make sure you have a boost gauge and you'll be fine.
05-15-2004, 05:29 PM
#19
Originally Posted by Mach5WRX
Check all your contections, sounds like you are only making wastegate boost....(I think that's what it's called)
05-19-2004, 06:08 PM
#22
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Join Date: Nov 2002
Location: St. Louis, MO
Posts: 50
Car Info: 2003 WRX wagon
I think it's around 7psi. If you're running the factory boost control, make sure all of the vacuum lines are hooked up properly...not reversed from "playing" with 'em 
. If it just started, and you have a CEL, it may indicate something more serious. And don't fiddle with boost unless you've got a boost gauge.
<crosses fingers>Thank the gods I haven't had to deal with this personally<uncrosses fingers>
. If it just started, and you have a CEL, it may indicate something more serious. And don't fiddle with boost unless you've got a boost gauge.<crosses fingers>Thank the gods I haven't had to deal with this personally<uncrosses fingers>
05-19-2004, 10:53 PM
#23
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Car Info: 02 Impreza WRX sedan
Origami posted by blackwagonrx
I changed it back to stock yesterday, and when i floor the boost only goes to .5 bars...
I changed it back to stock yesterday, and when i floor the boost only goes to .5 bars...
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0==WW==0
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05-30-2004, 07:15 PM
#24
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Car Info: 1993/2000/2001 GF4 mostly red
Originally Posted by blackwagonrx
ok so here's the thing, I had a MBC on my car for about 2 years, and recently even at the lowest level it would spike up to 1.5 bars. So i figured the spring inside is screwed. I changed it back to stock yesterday, and when i floor the boost only goes to .5 bars (about 7-8 pounds) Does this sound right with stock boost? I thought stock WRX's ran at 14 bounds. Anyone know what might be the problem?
05-31-2004, 06:56 PM
#25
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follow the links in this thread: https://www.i-club.com/forums/engine-power-ej20t-pre-2006-wrx-jdm-60/proper-connections-boost-control-hoses-56155/ to put your hoses back to stock properly.
06-13-2004, 07:42 PM
#27
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Join Date: Jan 2003
Location: Watsonville, Ca
Posts: 181
Car Info: 02 WRX WRB 4EAT VF34 Kit w/AP
I have an mbc with no issues. Decided to go back to stock until i got some engine management, but could not get more then 7psi. Tried every possible hose connection, reset ecu, and just the same 7 psi. So i put the mbc back on. Been fine for 3 years. Getting management soon though.
06-16-2004, 03:43 PM
#28
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Posts: n/a
iv had a Joe P for about one year now on my 03 and it holds boost SUPER steady!!!! ~.08 in 1st and 2nd .....and 0.1 in 3rd 4th....and 0.105 in 5th.....
now that was during the winter....during the summer its more like stock settings with less pikes becasue of the heat....
i too have taken mine off becasue i have a accessport coming in 8 weeks.....i want my car to feel like a new moster when i reflash it with stage II.....
now that was during the winter....during the summer its more like stock settings with less pikes becasue of the heat....
i too have taken mine off becasue i have a accessport coming in 8 weeks.....i want my car to feel like a new moster when i reflash it with stage II.....
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