[Biturbos4] testing the turbo bypass valve(s)

j y jimnetpa at yahoo.com
Wed Mar 10 23:36:26 EST 2004

bad bypass valves can cause turbo overspin.
if you plan on chipping the car - get "aftermkt" bypass valves - forge, bailey, etc..

David Kavanagh <dak at rochester.rr.com> wrote:
What's the proper procedure for testing the bypass valves? Looks like 
mine are stock (and original judging by the "use-once" hose clamps). 
Would failure symptoms be obvious when driving the car? I understand 
they could fail where the don't fully close. Could they be the source of 
an intake leak?


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