Yup I run a Forge BPV. Yellow spring w/ 2 shims (recommended by tuner)
No changes in anything since last fall
Emailed my tuner. Will post his reply for others as well with future questions.
Also PM'd a guy I found commenting on similar threads to mine on NASIOC who seemed pretty nice and quite knowledgable (xluben). Will also post his reply.
By reading the 300 threads I've read so far lol...it def doesn't seem like compressor surge IMO either, although I think Keith just misunderstood my initial post/symptoms.
And I'm trying to get a solid answer on whether this is temp related. I seen a lot of posts about how colder temps can cause flutter...why though? Haven't seen an answer for that yet.
Now how do I tell if it's wastegate flutter or BPV flutter? how is it fixed "the right way" and why am I just experiencing it now? I'll have to see if it does it standing still just revving the engine. I doubt it but I'll try later. It only happens going into 4th so I doubt it'll do it just by revving it to boost.
I'm thinking mine may be temp related as this is the first time I've really gotten on it in colder temps. When I was tuned last Fall my engine barely had 1k plus an upgraded tune so I def took it easy on the car last year.
Could a leak in the BPV gasket be the cause if this?
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