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07-16-2006, 08:28 PM | #1 |
Scooby Newbie
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accessport boost gauge question
ok, this might be a stupid question but i searched a bit and didnt come up with a satisfactory answer. im getting wastegate flutter and am thinking about messin with my wastegate actuator arm to tighten it up a bit, however, i dont want boost spikes. i dont have a boost gauge exept whats on the AP and was wondering if it is accurate enough to show me boost spikes and boost creep. i think it should but i wanted to check with the experts first. thanks guys
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07-16-2006, 08:45 PM | #2 |
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i wouldnt mess with the actuator arm for wastegate flutter... just me though. if it shows it, itll probably be too quick to see.
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07-17-2006, 09:26 AM | #3 |
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Have you messed with the exhaust at all? If so, check for an exhaust leak before messing with the arm. If you have a leak, it will usually cause a decent amount of wastegate flutter.
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07-18-2006, 01:47 PM | #4 |
Scooby Newbie
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yeah i have a cobb uppipe and and a cobb tbe. i was really careful when installing them and used all new gaskets. what are the chances you think i have a leak? it sounds tight, ie no raspy tick tick tick noise. i was under the impression that because of my 3" exaust that it reduced the backpressure which helped close the wastegate, which now isnt getting as much pressure as before and is why it flutters under partial boost. is this wrong? thanks for any help
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07-18-2006, 02:47 PM | #5 |
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search way back and you can find a thread on wastegate flutter and what some people tried to fix it with.... no sense really though, doesnt harm anything. just annoying to some people..
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07-18-2006, 04:29 PM | #6 | |
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Quote:
Try tightening it a turn or two and see if it helps. If you start to spike, undo a half turn at a time until it stops spiking. The AP is definitely accurate enough to notice any spiking. |
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07-18-2006, 05:37 PM | #7 |
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yes, the live boost reading from the AP is good enough (actually it's better than most mechancial boost gauges) to get acurate readings from.
and go ahead and try to tighten the WG |
07-18-2006, 08:38 PM | #8 |
Scooby Newbie
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are you being sarcastic?^^^^^? well i might give it a go and see what happens.
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07-18-2006, 09:36 PM | #9 |
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no i'm being serious. tighten it down until you get spiking or overboost.
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07-20-2006, 12:55 AM | #10 | |
Scooby Newbie
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Quote:
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07-20-2006, 02:39 AM | #11 |
Scooby Specialist
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Join Date: Apr 2003
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Try tightening the WG. If it doesn't help, then put it back to where it was. I was skeptical too, but could kick myself for not tightening it sooner.
If you had a leak you would feel/hear it. |
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