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Blow off valve #1671815
06/05/2024 13:20
06/05/2024 13:20
Joined: Dec 2022
Posts: 38
Bucharest, Romania
Fre3_D0om Offline OP
Discoverer
Fre3_D0om  Offline OP
Discoverer

Joined: Dec 2022
Posts: 38
Bucharest, Romania
So I am looking to replace my bov, as the factory one I have fitted has completely worn out. While I do enjoy the group b stutututu noises my Coupe makes atm, I do intend to preserve the lifespan of my turbo.

I am in the process of restoring/improving my Coupe, so I do want to make a stage 2 upgrade on it at some point when I will have the neccesary funding to do so. Long story short, as I am restoring my car, I would like to replace the parts which need replacing with the parts which I would need for a stage 2. On that list is obviously a blow off valve. Now, my question is, do all blow off valve fit all turbos? This could sound like such a stupid since I know next no nothing when it comes to the mechanicals works of car. I just like driving them.
Jokes aside, if I were to get a blow off valve, would that also work for a gt28rs?

In terms of specs, I would be looking at one of those fancy recirculating and dump valves. The 2 in one package or whatever they're called. I'll have to get it tuned by a specialist in order to get the best out of it but I'll take care of that when I'll cross that bridge.
As far as I've seen, bovs come in different shapes and sizes. Does the size matter? I assume it would affect the sound and I would require a bigger bov if I were to be running a higher horsepower build. But strictly for a stage 2 build, does that matter a whole lot?
Thanks!

P.S.
I will not be replacing my turbo atm, since I will sink a lot of money into my car for the rust prevention and removal process which will take place during summer.

Re: Blow off valve [Re: Fre3_D0om] #1671830
07/05/2024 09:09
07/05/2024 09:09
Joined: Feb 2019
Posts: 301
Free State of Jones
clanger Offline
Making a profit
clanger  Offline
Making a profit

Joined: Feb 2019
Posts: 301
Free State of Jones
You are correct in that you need a re-circ valve unless noise is more important to you than correct fuelling. A good option is Forge: https://www.forgemotorsport.co.uk/Turbo_Recirculation_Valve--product--756.html No tuning required apart from selecting spring pressure related to max boost you are running.

Do a google search on "how do blow off valves work" its not a difficult subject to understand and by doing so you will answer all your questions


E85

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