compressor surge/wg flutter/bov flutter? (dyno vid)
#1
compressor surge/wg flutter/bov flutter? (dyno vid)
i had my car tuned on speed density on the dyno and when getting into boost pretty much in all gears theres that flutter sound...it used to be on aem ems and it didnt do this...it would do it only in 5th gear...you can see in the video when making the pull it seems that it flutters then it goes away as the rpms rise...any ideas what this is? the tuner said not to worry about it...not too convinced...what do you guys think?
mods are evo 9 turbo, tial bov, forge wg, intercooler and piping, aem fuel rail, bc 272 cams, exhaust, 4" intake, aem boost solenoid, o2 housing, walbro 255 pump, if i think of anything else ill post it...thx guys...
http://vid1105.photobucket.com/album...psdyichzgi.mp4
mods are evo 9 turbo, tial bov, forge wg, intercooler and piping, aem fuel rail, bc 272 cams, exhaust, 4" intake, aem boost solenoid, o2 housing, walbro 255 pump, if i think of anything else ill post it...thx guys...
http://vid1105.photobucket.com/album...psdyichzgi.mp4
Last edited by nor11384; Jul 30, 2015 at 03:29 PM.
#6
Evolved Member
iTrader: (7)
All cars with ebcs with pulse like that. Its easier to hear on an ewg.
Besides the noise is there an issue with how the car drives or makes power?
#7
Well im not 100% sure that is the issue, but it somewhat sounds like it. Check all wastegate lines and everything to make sure nothings leaking.
All cars with ebcs with pulse like that. Its easier to hear on an ewg.
Besides the noise is there an issue with how the car drives or makes power?
All cars with ebcs with pulse like that. Its easier to hear on an ewg.
Besides the noise is there an issue with how the car drives or makes power?
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#8
Evolved Member
iTrader: (27)
Well im not 100% sure that is the issue, but it somewhat sounds like it. Check all wastegate lines and everything to make sure nothings leaking.
All cars with ebcs with pulse like that. Its easier to hear on an ewg.
Besides the noise is there an issue with how the car drives or makes power?
All cars with ebcs with pulse like that. Its easier to hear on an ewg.
Besides the noise is there an issue with how the car drives or makes power?
#10
Evolved Member
iTrader: (7)
Would you mind posting up a video of your car wot? What 3 port do you have? How much boost are you running?
If it pulls good and makes power normally I think there is no issue. Bov also sounds normal at partial and wot.
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