Forced Induction Custom FI Setup Questions

Boost Creep

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Old Apr 4, 2009 | 03:37 PM
  #1  
saturn's Avatar
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Default Boost Creep

so i fucked up my actuator, got another one from a junk yard, made up new bracket and all, bolted it on but now the car is boost creeping which it has NEVER done before. so i coff up for a brand new actuator, mount it on new bracket same story.

wtf is going on, i have very limited space and the new bracket is dead straight(which gives me 20-30mm more so the avearge actuator will fit in there), the original backet was at a angle and had a step in it (and the diaprahm housing was tiny and it JUST fitted in) but i butched it and bin it a week ago so now WTF do i do.

if i look at all new turbo pics the actuators are never dead straight, you'll recon thats the problem?

the car is doing the text book "boost creep" but upto dangerious level's
Old Apr 4, 2009 | 05:32 PM
  #2  
SOHCKLR657's Avatar
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Post your set-up so we can see what your working with
Old Apr 4, 2009 | 07:45 PM
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^^^ YES...since your internaly wastegated...thats really common...you can either get a open dump which if you like the loud *** sound then go for it. or convert to external. which would be your best bet man.
Old Apr 5, 2009 | 02:49 AM
  #4  
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Originally Posted by Rendonlxi
^^^ YES...since your internaly wastegated...thats really common...you can either get a open dump which if you like the loud *** sound then go for it. or convert to external. which would be your best bet man.
I have already bought a xternal wastergate(waiting for delevery), getting flanges cut and must go buy the bends during the week. there is a topend race meeting next weekend (that only comes once a year) that i dont wanna miss. what is grating me is that i fucked it up cos in the 3 years i have had the car it had NEVER boost creeped
Old Apr 5, 2009 | 03:36 PM
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thats wierd...let us know how it goes man
Old Apr 6, 2009 | 02:31 PM
  #6  
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Originally Posted by Rendonlxi
thats wierd...let us know how it goes man

i put a bicyle/hand pump straight onto the actatour and just before it at max stretch out it pushes up against a oil feed, so it looks like that is the problem. waiting for the car to cool down then will try again and let you know ...
Old Apr 6, 2009 | 05:45 PM
  #7  
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Just get gangsta with it, and find a way to cope with the boost creep
It makes for more fun.
Old Apr 6, 2009 | 07:56 PM
  #8  
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I would make sure that the flapper opens all the way. If it does i would port the exhaust housing so it would flow better.
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