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Tippy Tippy is offline
Chain fence eating turbo
Join Date: Dec 2008
Location: Austin, TX
Posts: 8,715

Quote de JFairman

If the blow off valve isn't opening when you let off the gas quickly under full boost acceleration between upshifts the compressor surge pushes the compressor wheel against the thrust bearing hard and tries to reverse the direction the turbo is spinning.

That could cause the shaft to break.

Yikes, i'm gonna adjust mine a smidge softer after reading that.
If it doesn't make a "chi-chi-chi" sound after letting off under boost, you're fine.
Old 02-27-2014, 04:55 PM
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