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Old 08-20-2013, 11:25 PM   #1
evo4g63
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Abnormal noise when throttle blip or WOT shifting

I posted a video in te Innovate thread about this abnormal popping noise I am getting. I have checked the car over and over to see if I could find the source of the noise. The car was recently installed with an Innovate supercharger. I started hearing the noise right after the install. I am posting here to see if anyone else has had this issue. The noise is driving me crazy. My tuner flies out this weekend but I was trying to take care of this prior to his arrival.

[ame]http://youtu.be/vMa_CDXROYI[/ame]
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Old 08-20-2013, 11:44 PM   #2
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Firecrackerr loooovvvvvvvvveee
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Old 08-21-2013, 12:23 AM   #3
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Well time to replace your seals. It is unlikely they will replace the seals under warranty.
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Old 08-21-2013, 01:09 AM   #4
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Sounds like a back fire
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Old 08-21-2013, 01:51 AM   #5
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What? You guys think a leaking combustion chamber would only manifest itself during blipping the throttle? Ha ha you crazy.
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Old 08-21-2013, 09:34 AM   #6
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Supercharger clutch?
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Old 08-21-2013, 10:57 AM   #7
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DI Injector?
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Old 08-21-2013, 09:40 PM   #8
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that sounds like the other videos of those with DI seal failure
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Old 08-22-2013, 03:58 AM   #9
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sounds like detonation. I have the same exact sound, deciding whether I should bring it in...
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Old 08-22-2013, 07:10 AM   #10
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I get the popping sound that everyone talks about with the detonation and seal failure, only thing is, I've only ever heard it when pulling away with light throttle, on my 1-2 shift, less than 3k or 4k RPM. And once on a downshift blip (probably 5k tops). It's not anywhere near repeatable enough to bring in, but I'm afraid I'm destroying my DI seals every once in a while.
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Old 08-22-2013, 11:09 AM   #11
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Quote:
Originally Posted by BRZnut View Post
that sounds like the other videos of those with DI seal failure
I am doubtful it's DI injector failure. It does not make that sound when at idle free revving. Only under load or while in motion and throttle blip.
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Old 08-22-2013, 11:17 AM   #12
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I have the same thing. But I don't have FI. I was told it may be the intake opening. I have a Perrin inlet hose and I started to hear it after installing that.
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Old 08-22-2013, 07:44 PM   #13
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Quote:
Originally Posted by Jlin View Post
sounds like detonation. I have the same exact sound, deciding whether I should bring it in...
Agreed...that sounds very much like a quick snap of detonation (ping, pre-ignition, spark knock...whatever term you want to use) to me.
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Old 08-22-2013, 07:49 PM   #14
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I seem to remember a member posting a video of the exact same sound, which was right before an engine seizure/failure...

http://www.ft86club.com/forums/showthread.php?t=37810
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