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Old 03-31-2005, 10:23 PM   #1
fat angel
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Join Date: Feb 2005
Chapter/Region: South East
Location: in the south.
Default stage 2.5 with mbc?

i've read a few threads , and by few i mean 3, where people have run a mbc with the ap. all where with the vf34 and where not hitting taget boost due to mods past the mapping. i know i am running rich and that iam not hitting target boost. iam past the suggestions for the map(fmic,pump,header). so has anyone else tried this little experiment? the results i have read (3) have been positive. anyone have any thoughts?
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Old 03-31-2005, 10:26 PM   #2
HonduHunter
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i vote no
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Old 03-31-2005, 10:27 PM   #3
fat angel
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Default

no thoughts? or haven't tried it? could you be a little bit more vague?
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Old 03-31-2005, 10:38 PM   #4
blackie
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blizzzack stage IV

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I put one on mine the other day and it alowed me to hold full boost till redline and i also had a wideband 02 hooked up to monitor my afr's and they were fine, hitting around 10.8-11.1 at full boost and getting richer to 10.5 at redline. i have 03 wrx too if that makes a difference. im now experimenting with a restrictor in front of the mbc and setting the mbc lower so it will still taper the boost some in 4th and 5th gear. other than it worked out fine, just make sure and have a boost gauge before you think about trying it.
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Old 03-31-2005, 10:47 PM   #5
fat angel
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Default

well i have the boost gauge. i am currently running the vf34, fmic, walbro,and headers plus the requirements and more. i have noticed that i don't reach the target boost but that i do run very rich. i dont have a wb02 at the moment and thats the only part that discourages me. i think if i try the mbc set at 17 like you did blackie that i wont put myself in harms way. as far as the taper i dont think i would have too much to worry about considering my driving style. i dont do many redline pulls at all. i am looking at this as a temporary fix till i can get a map tuned with the protuner.
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