another boost leak question
Jan 23, 2009, 06:19 PM
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another boost leak question
hi guys i made a post a couple weeks back about a boost leak i was having and thought it was my piping but it wasnt... if my boost is spiking 25 then dropping to 15 then cerrping back to 18, could that be my wastegate going bad possibly
Jan 23, 2009, 08:09 PM
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I would be curious to know if there is any preload whatsoever on your WG. And, if so, exactly how much. Could you do a run wth the MBC knob backed out to its softest setting to check, huh?
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Jan 23, 2009, 08:13 PM
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idk anything about the wasteagte except it is stock... it was working fine about a week ago then just started doing it as i was driving home... and im not sure if i undestand what u mean... you want me to turn the boost controller all the way down to minimum boost and see if it still happens... i no they way i have it set now if i slowly go into boost it will hold 10lbs with no prob but as soon as i go above 10lbs is when it starts dropping
Jan 23, 2009, 08:23 PM
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no sry bout that i was asking if thats what u wanted me to do... right now its set to 25lbs but if i climb into boost easy to 10lbs it doesnt creep down but as soon as i go any higher it starts creeping down and doing the same thing it does at high boost
Jan 23, 2009, 08:28 PM
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Yeah, I'd like you to turn the MBC knob all the way out to its minimum boost setting and go out on the street and test it to see what boost reading you get that way(with the MBC turned all the way soft).
Jan 23, 2009, 08:46 PM
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well witht he controller all the way down it would go to 15lbs and then creep its way up to 20lbs holdig that... that sounds weird to me
Jan 23, 2009, 08:59 PM
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I think that we could dial in 4 PSI more of WG preload and it should solve the problem that you are experiencing. At least it's worth a shot. Do you feel capable of tinkering with the actuator rod yourself or not?