Clapper Member 13 Member For: 19y 6m 24d Posted 23/08/08 10:37 AM Share Posted 23/08/08 10:37 AM I have had my T modified (edit, exhaust, 2nd intake, high flow filter). It about 238rwkw. So not a large power increase.So my T boost to about 10psi now. But when I gun it, I hear a loud fluttering sound from the engine.I was just wondering if this is normal for modified T's, or is it a sign of the actuator not being strong enough, and opening and closing on boost to cause the fluttering? I have a boost gauge, and it seems to hold boost ok, so I doubt my suspicions of it being a weak wastegate actuator.So I'm just wondering if any of you other T owners have experienced the same? Is it normal and expected or is there a problem?It's not causing any power lose as far as I can tell. Link to comment Share on other sites More sharing options...
typhoon_freak Cryptic Clothing Company Donating Members 4,556 Member For: 16y 4m 12d Gender: Male Location: Brisvages, Capalaba Posted 26/08/08 04:49 AM Share Posted 26/08/08 04:49 AM is it a loud flutter? take it to a tune shop just to be cautious Link to comment Share on other sites More sharing options...
our06t Mmmmm......BOOST Member 3,135 Member For: 17y 6m 25d Gender: Male Location: central coast Posted 26/08/08 05:07 AM Share Posted 26/08/08 05:07 AM auto or manual what year model Link to comment Share on other sites More sharing options...
Clapper Member 13 Member For: 19y 6m 24d Posted 26/08/08 06:37 AM Author Share Posted 26/08/08 06:37 AM Thanks fellas for replying, I thought I wasn't gonna get a response for a bit then.Yeah it is a loud fluttering. I live in Darwin, and we haven't got much choice in tuners up here. I'm not sure if I could trust the couple we do have. My initial tune was done by someone flown up. But then I'm not too sure about him. I put my trust in the workshop that flew him up.It's an auto, 2005 BA II Link to comment Share on other sites More sharing options...
RHR BOOST Moderating Team 5,698 Member For: 21y 2m 17d Gender: Male Location: Southern Highlands NSW Posted 26/08/08 11:03 PM Share Posted 26/08/08 11:03 PM if off boost does it rev cleanly through the rev range.Did you do the spark plugs when you got the tune Link to comment Share on other sites More sharing options...
XR06T Silver Donating Members 4,146 Member For: 19y 4m 30d Gender: Male Posted 27/08/08 01:05 AM Share Posted 27/08/08 01:05 AM I get a similar sound, but its not very loud. im pretty sure it is just the actuator opening and closing trying to keep the boost under control. Link to comment Share on other sites More sharing options...
Clapper Member 13 Member For: 19y 6m 24d Posted 27/08/08 05:22 AM Author Share Posted 27/08/08 05:22 AM if off boost does it rev cleanly through the rev range.Did you do the spark plugs when you got the tuneNah, the spark plugs were not done. But it revs through the range fine, off boost.There seems to be no noticeable problem (but then I am no mechanic). It's just this loud fluttering has me worried that there may be something wrong, and is not showing,.... yet apart from this fluttering sound. Link to comment Share on other sites More sharing options...
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