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Old 01-21-2005, 12:50 AM   #1
blackie
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Member#: 42979
Join Date: Sep 2003
Location: houston tx
Vehicle:
03 wrx
blizzzack stage IV

Default will this cure PTFB problems with MBC's??

OK, you get a dual stage mbc and set the lower setting to 10 psi and and the higher setting to 17 psi, then you have a switch that that only lets the 17psi setting come on at lets say 90% throttle and any thing under that will stay at the 10 psi setting. wont this in theory eliminate any PTFB problem??
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Old 01-21-2005, 11:47 AM   #2
Jaxx
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The 93 W/EJ20K
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first 17 is tooo much (kaboom)

second unless you flip the switch evey time you enter part throttle nope and you would want a 8 psi setting (wastegate)

basicly no
get a relfash
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Old 01-21-2005, 11:55 AM   #3
blackie
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blizzzack stage IV

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im curently stage 4 but using cobbs vf34 map. i rarely hit target boost anymoore so i was going to add a mbc to level the boost back up to 17psi.
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Old 01-21-2005, 12:14 PM   #4
CBRDSpeedfactory
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Location: Pennsylvania
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ALL lots of fast 1s
mostly silver!

Default well..

right now, we are using a utec...but with an mbc, two actually...

im using a DNA mbc and also the ABC from the utec.... i have gotten it to where i can control the overall boost with the DNA, but the ABC allows me to control spiking issues at boost onset....

it has been working pretty well so far...boost response is definetly better than the oem ebc....

avcr would be nice!

boost control in gears and what not....

chad b
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Old 01-21-2005, 04:40 PM   #5
hippy
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Silver

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I know this seems pretty obvious and ya might not wanna do it, but why not just push the throttle past 60%tps or back off the throttle so the boost goes down if you're at/above 7psi?

peace
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Old 02-22-2005, 12:51 PM   #6
EdsWRX
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08 spec b
07 335xi

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Quote:
Originally Posted by CBRD
right now, we are using a utec...but with an mbc, two actually...

im using a DNA mbc and also the ABC from the utec.... i have gotten it to where i can control the overall boost with the DNA, but the ABC allows me to control spiking issues at boost onset....

it has been working pretty well so far...boost response is definetly better than the oem ebc....

avcr would be nice!

boost control in gears and what not....

chad b
I'm curious about how this is set up... care to elaborate? Thanks
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