manual boost controller - VAGCOM logs - SEAT Cupra.net

amgtorre · 10-01-2003, 03:25

installed a MBC from boostvalve.com

torque in the midrange increased noticeably

power on the high end is lower per my VAGCOM logs

cars has a weird surge down in power when acelerator is >= 60% but less than 100% when the boost goes over 12PSI it suddenly drops to about 8PSI

this does not happen when acelerator is 100% or if i maintain the boost under 12 PSI , the boost goes up to 16PSI when flooring it , I wonder it the surge will go away if I increase the valve PSI level to about 15PSI , altough a little afraid f trying that as when flooring the boost may go over what the stock ECU considers safe and will drop into limp mode ...

the boost drops to about 12 psi at higher RPM > 5000RPM

car is stock (no chips)

here is my best vagcom run vs. a run with the MBC valve

amgtorre · 10-01-2003, 03:27

VAGCOM block 115 with the valve

amgtorre · 10-01-2003, 03:30

notice how the boost doesn't drop near 6000 RPM and follows the requested boost much closer at RPMs > 4000

this log is from a year ago (10K miles ago)

10-01-2003, 03:25	#1
amgtorre Full Member Join Date: Oct 2001 Location: Guadalajara, Jalisco, Mexico Posts: 173	manual boost controller - VAGCOM logs installed a MBC from boostvalve.com torque in the midrange increased noticeably power on the high end is lower per my VAGCOM logs cars has a weird surge down in power when acelerator is >= 60% but less than 100% when the boost goes over 12PSI it suddenly drops to about 8PSI this does not happen when acelerator is 100% or if i maintain the boost under 12 PSI , the boost goes up to 16PSI when flooring it , I wonder it the surge will go away if I increase the valve PSI level to about 15PSI , altough a little afraid f trying that as when flooring the boost may go over what the stock ECU considers safe and will drop into limp mode ... the boost drops to about 12 psi at higher RPM > 5000RPM car is stock (no chips) here is my best vagcom run vs. a run with the MBC valve __________________ 2002 Leon Sport 20VT

10-01-2003, 03:27	#2
amgtorre Full Member Join Date: Oct 2001 Location: Guadalajara, Jalisco, Mexico Posts: 173	MBC boost log VAGCOM block 115 with the valve __________________ 2002 Leon Sport 20VT

10-01-2003, 03:30	#3
amgtorre Full Member Join Date: Oct 2001 Location: Guadalajara, Jalisco, Mexico Posts: 173	and .... boost without the MBC notice how the boost doesn't drop near 6000 RPM and follows the requested boost much closer at RPMs > 4000 this log is from a year ago (10K miles ago) __________________ 2002 Leon Sport 20VT

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