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Waste Gate Actuator Adjustment?? ... anyone?

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Old Jun 5, 2008 | 09:02 AM
  #1  
IAmADirtDude's Avatar
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Waste Gate Actuator Adjustment?? ... anyone?

i need to adjust my waste gate actuator can anyone explain how to do so... i was told to turn it in 2-3 turns. i dont know if that means back it off then go 3 turns in for a factory setting or just turn it in 3 more turns to make sure its not leaking pressure to early. i assume i need to do this from under the car by taking off the underpanel.... help me out please. should i be at 20 vacuum at idle too with stock cams?

i think thats right i'm just maxing out at 17-18 and tapering immediatly to 15-16 psi ... the car feels wayyy slower at wot and wierd at around 2-3 thou rpms in first gear. no boost leaks except through the crankcase into the valve cover which i was told is normal that during a boost test it will slowly dwindle down from there


any insight on these adjust ment and reassuring what i know would be great thanks
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Old Jun 5, 2008 | 09:18 AM
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make the arm shorter
you do it from the top , you have to remove one or two of the heat shelds
shorter arm should = more psi
Ive got mine where its 1/4" to short
you have to use a little muscle to make it go back on ..

Last edited by matt55; Jun 5, 2008 at 09:32 AM.
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Old Jun 5, 2008 | 12:25 PM
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+1
Shorten arm such that you have to pull on it a little in order to slide it onto to wastegate arm. That "pull" stretches an internal spring, increasing the preload on the actuator.

How many turns you need will be a matter of trial and error. Nobody here can answer that.
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Old Jun 5, 2008 | 04:40 PM
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heh sounds easy but i cant reach the other heat shield bolt unless i get under the car.... time to test thanks!
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Old Jun 5, 2008 | 05:18 PM
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lol everyone is losing boost these days eh?
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Old Jun 6, 2008 | 10:22 AM
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if i adjust it 1 turn, 2 turns, will it make my car run higher boost or will it seal for a higher boost level. i dont want to adjust it if it just raises my boost level ( like a MBC lets say)
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Old Nov 28, 2010 | 06:57 PM
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my car only hits 13 psi and it seems like my wastgate opens up and lets out all my boost. theres no boost leaks i tested it so i have no idea what the problem is.. could it be the wastgate?? thanks to any replies in advance.. sorry for highjacking the thread
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Old Nov 28, 2010 | 07:22 PM
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Originally Posted by IAmADirtDude
...will it make my car run higher boost or will it seal for a higher boost level. i dont want to adjust it if it just raises my boost level....
Excuse my ignorance but aren't you controlling boost with the AEM Tru Boost. At least I thought that it was an EBC. Sorry for the dumb question.
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Old Nov 28, 2010 | 07:33 PM
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We're assuming that your Evo has a stock IX turbo equipped with the factory WGA....right.
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Old Nov 28, 2010 | 07:39 PM
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[QUOTE=IAmADirtDude;5741245]i need to adjust my waste gate actuator... i'm...maxing out at 17-18 and tapering immediatly to 15-16 psi .../QUOTE]Is 18 PSI your max target boost level
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