tapping noise on boost

jay22s3

2nd gear sorts em out
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hi when i put my toe down i get a fast tapping noise for a bit till i change up and then again same could it be the cam followers ? BAM ENGINE DONE ABOUT 84,000 has been mapped thanks in advance
 
If it's a relatively soft sound could be a leak between the manifold and turbo... check the turbo bolts are nice and tight and it's not leaking round the gasket there

If it's a harsher metallic sounds it's more likely something else like a lifter, but would be unusual for that to happen only on boost.
 
it runs good don't think its got a leak as only had a 3 inch down pipe a few months ago but will get it checked
 

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