Upgraded turbo owners

[Hinzel]

I'm running a vargas stage 2 and had a couple questions for those with upgraded turbos:

1) what are you using for your BOV and wastegate?
2) do you get low boost fluttering?

I'm running a turbosmart WGA as well as a turbosmart BOV

On the OEM turbo, i got fluttering though it was not severe. After upgrading the turbo, I get it a lot worse in low boost scenarios (0 - 5 PSI). Mash the gas or let off the throttle and it goes away.

I don't believe this issue is due to my gear malfunctioning, I've already adjusted the BOV as well as cleaned/lubed it, and ensured that all of the lines are secured properly:
https://www.turbosmart.com/news/adjusting-your-bov-or-bpv/
https://www.turbosmart.com/news/looking-after-your-bov-or-bpv/

I've read quite a bit on this, and it seems that some people had success when they changed the springs in the BOV:
http://www.turbosmartdirect.com/Pro...rings/BOV-Kompact-Soft-Spring-Blue.html#media
https://www.mustang6g.com/forums/threads/turbosmart-bov-question.61752/page-2

Though others are saying that it is unavoidable:
https://www.mustang6g.com/forums/threads/a-different-type-of-tune-review.48332/#post-1170002

it sounds like shit and i'd like to get rid of as much of it as possible

Thanks!

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[Hinzel]

I've also heard others recommend this in addition to the OEM BPV:
https://gfb.com.au/products/blow-of...v-t9358-suits-mercedes-ford-and-volvo-detail/

 

[Hellman109]

I have the NX2 and the DV+ (from before the turbo upgrade) and I get flutter but only coming off acceleration at high boost Im fairly sure.

One thing I see on the vargas is that it doesn't have any anti-surge porting in the outlet, so it wont deal with the throttle body closing quite as well

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