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Compressor Surge vs. Wastegate Flutter WRX?

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Uploaded by on Nov 2, 2011

This video is in 4th gear- I am on/off the throttle, going in and out of the boost. Every time I let off the throttle, the car makes the neighing sound- Idk what it is though! Its definitly not coming from the blow off valve, so I've limited it down to wastegate flutter or compressor surge. Let me know what you think.

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Autos & Vehicles

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Uploader Comments (teamcrackitracing)

  • Yeah haha... figured that out after i took the bov apart and found a shit ton of carbon built up in it! I think it also has to deal with my wg duty cycles :/

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  • Compression surge. The bov isn't fully releasing the boost and causing it to go back into the turbo. If it fluttered during boost then it's waste gate, if it fluttered after boost then it's surge. :-)

  • volume is so low on this, cant tell, when using GoPro take it out of the plastic cover or get the cover with holes

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