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12-07-2017, 09:37 AM | #301 |
Former Vendor
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Join Date: Nov 2004
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MWSOC
Location: 635 Wheat Lane, Wood Dale, IL
Vehicle:2015 WRX WRB |
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12-07-2017, 07:46 PM | #302 |
Scooby Specialist
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Vehicle:'15 Foz XT & GT86 |
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12-07-2017, 07:54 PM | #303 | |
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Join Date: Jan 2011
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Vehicle:'15 Foz XT & GT86 |
Quote:
Noone is saying that the stock bpv wont work but perhaps you would have more response and another 5-10hp/tq if you had an aftermarket one. (perhaps because the bpv is leaking boost back to the intake which means turbo has to work harder to make the same boost). Only real way to prove this is a back to back dyno. Saying my car runs fine is not. |
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12-07-2017, 10:15 PM | #304 |
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12-26-2017, 11:33 AM | #305 | |
Former Vendor
Member#: 75640
Join Date: Nov 2004
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MWSOC
Location: 635 Wheat Lane, Wood Dale, IL
Vehicle:2015 WRX WRB |
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06-21-2018, 07:48 PM | #306 |
Scooby Specialist
Member#: 448622
Join Date: Jun 2016
Location: Vancouver, BC
Vehicle:2019 STI SportTech CWP |
So has it been defined/confirmed if the Boomba flutter is indeed compressor surge?
I find it hard to believe it isn't..... Also, I guess there's some argument about stock OEM equipment being good enough to not need to look into aftermarket parts in some cases. But to be honest, in the case of Subaru, I personally think they go for "good enough". Yeah the OEM is ok, it's warrantiable too.... but is it the best? I wonder. Personally, I don't think a company that would use that OEM handbrake boot material, the OEM battery, the thickness of the windows/windshield... or that grey trim on the steering wheel... is giving us the best of anything |
06-21-2018, 08:37 PM | #307 |
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Location: Trinity, FL
Vehicle:209 STI ISM |
If you want to remove the fluttering or surging, look into Company23 EBCS. They have a v2 model that eliminated all their prior issues.
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06-21-2018, 08:48 PM | #308 |
Scooby Specialist
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Join Date: Jan 2011
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Vehicle:'15 Foz XT & GT86 |
From page 12:
"The stock bpv didnt start to leak. It is designed to bypass a small amout of air through it. By design." I personally like the flutter/compressor surge noise at low boost. I have a turbosmart bpv with it set quite tight so that i get some flutter/compressor surge (at low boost only!). I am not saying dont get the Boomba bpv because of it, Im just saying the excuse that its not flutter/compressor surge is garbage. |
06-21-2018, 09:29 PM | #309 | |
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You still need a proper design though. And the way i see it, the Boomba is perhaps sacrificing long term reliability for a cool sound and immediate gains. Or maybe the surge is a total non-issue. I don't know, that's sort of what I wanted to ask to see if people have found out more about it.... The quality in the Boomba definitely looks top notch but, personally... I think the Perrin BPV is the best design+quality. It's expensive though, but I think I'm going with the Perrin BPV. Just debating whether I start those mods now or after winter (ie grab all the parts in winter and do a single install in spring). Last edited by F1EA; 06-22-2018 at 01:41 AM. |
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06-22-2018, 12:54 AM | #310 | |
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06-22-2018, 12:35 PM | #311 | |
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Join Date: Jun 2016
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Yes, the idea is to at least not put in a part that's of WORSE quality than OEM. Mostly from some of the posts earlier in this thread about OEM being 'best'. I don't think this applies to Subaru. If we were talking AMG.... I think it's fair to assume aftermarket is not likely to be much or any better... but for Subaru... meh. For sure, there's some performance gains in most of these parts... and like I said, the quality is there. The question is, if it's a better overall design than OEM. Basically, if it improves performance while still keeping the durability of your other parts - I know most extra performance will mean potentially a bit less 'long-term reliability' but if this can be kept to a minimum (like... by not allowing unnecessary surge) that would be great. |
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10-19-2021, 11:12 PM | #312 |
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11-10-2021, 09:36 PM | #313 |
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been runing this valve for nearly 4 years and 40k miles. hard to believe it is compressor surge and would surely think i would have some sort of damage by now if it was
Only get the flutter when making low boost or partial throttle. Full throttle pulls when boost is fully built it makes more of a whoosh sound |
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