how resolve this type of surge?
May 27, 2009, 02:15 PM
#1
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how resolve this type of surge?
do you know how to resolve this type of surge
http://www.youtube.com/watch?v=evGFfuhUaRM&feature=related
this is just an example video that i found but i have the same problem on my EVO 9
please help??
stock turbo
turbosmart mbc
turbosmart dual port bov
injen intake
injen intercooler pipe kit
xs intercooler
3 inch exhaust
walbro 255
aftermarket o2 housing
ECU reflash
act clutch
http://www.youtube.com/watch?v=evGFfuhUaRM&feature=related this is just an example video that i found but i have the same problem on my EVO 9
please help??
stock turbo
turbosmart mbc
turbosmart dual port bov
injen intake
injen intercooler pipe kit
xs intercooler
3 inch exhaust
walbro 255
aftermarket o2 housing
ECU reflash
act clutch
Last edited by STi_kill3r; Jan 28, 2010 at 02:29 PM.
Jan 29, 2010, 09:58 PM
#5
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STI kill3r .... i'm suffering exactly the same problem as you did ...
I'm using Blitz SBC Type S boost controller (single soleniod) ...
What boost controller are you using ?
How do you fix you problem ?
I mean what setting did you do with your boost controller ?
PLS Help me out ...
I'm using Blitz SBC Type S boost controller (single soleniod) ...
What boost controller are you using ?
How do you fix you problem ?
I mean what setting did you do with your boost controller ?
PLS Help me out ...
Jan 29, 2010, 10:11 PM
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Jan 30, 2010, 01:17 PM
#8
The spring doesn't have too much effect on it, it's how the wastegate is controlled that does. MBC's especially in cold weather will flutter bad, as will EBC's and stock ecu controlled boost solenoids if the wastegate duty cycle isn't tuned to match the correction.
Jan 30, 2010, 07:21 PM
#11
No, if by going from the OP's clip it can't be as diesels don't run BOV's. There are 2 things it could be...compressor surge due to hitting the surge line (which is probably the case for the diesel truck video so I should have clarified my answer), or wastegate flutter which was what the OP had. If you read his response he even said that his boost controller was the issue, and you don't normally get compressor surge at full throttle unless you hit the surge line. Easiest way to see if it's wastegate oriented is to watch the boost gauge...if it oscillates, then it's caused by that.
BOV flutter is what you experience when letting off the throttle slowly, and you hear the compressor start to chatter as the air backs up against the compressor...2 totally different things.
Good try though, do a little more homework and you'll be good.
BOV flutter is what you experience when letting off the throttle slowly, and you hear the compressor start to chatter as the air backs up against the compressor...2 totally different things.
Good try though, do a little more homework and you'll be good.
Jan 31, 2010, 10:37 PM
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The problem is now i don't know whether its my BOV flutter or its my boost controller's fault or my wastegate problem ... It only happen when i part throttle my car ... full throttle no problem ...
Feb 8, 2010, 04:00 PM
#14
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i have kinda the same prob too... but when like less then half throttle it does that. i dotn have a boost controll just turbosmart bov full 3in ex and intake.. and when ii get on it it breaks up( i am pretty sure thATS BC it needs tuned) but sometimes it feels like the fuel cuts out completely and really falls on its face.. could it have anything to do with my test pipe. i might even have the o2 sensors mixed up
