All Things Mk5 > How to Guides / Troubleshooting

Funny noise on full boost

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rich83:

--- Quote from: PDT on September 17, 2011, 05:32:21 pm ---No need to do anything about it. Basicly the boost is rising and falling constantly as the wastegate in the exhaust hosing is closing and opening to maintain boost. 

--- End quote ---

Thanks very much... That's worry number 1 or 47 cleared up!!  :drinking:

Saint Steve:
Your new Rev d Diverter Valve perhaps :wink:

Noticed mine since changing from Ref B to D. i changed mine last week just cus and for no boost issues..

rich83:
It was doing it last night too steve ( pre revision D)

The new dv has made zero difference, the DV noise sounds just the same and it seems to boost the same.

Saint Steve:
Since changing mine, i have to say, mine feels better on boost  :confused:.. Romany also notice his improved after changing his, although neither of our old DV's never actually failed.Perhaps mine maybe more noticeable on stage 2 as the stage 1 map is not as much torque sustained at higher RPM's..

rich83:

--- Quote from: PDT on September 17, 2011, 05:32:21 pm ---No need to do anything about it. Basicly the boost is rising and falling constantly as the wastegate in the exhaust hosing is closing and opening to maintain boost. 

--- End quote ---

So the wastegate is regulating the boost and preventing overboost?

Thanks PDT

rich

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