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Synapse Engineering Universal Synchronic Blow-Off Valve/ BOV adapters available

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Old May 1, 2008 | 11:29 AM
  #16  
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Old May 1, 2008 | 11:57 AM
  #17  
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Originally Posted by Boltz.
Based on looking at the desing of this blowoff valve it looks (this is a generalization) like a standard blow off valve that is used backwards with a second sealed chamber for the piston and modded vacuum nipples for the reverse design.

Just by looking at the CAD photos, It looks like it would remain open under vacuum. Is there a spring in this BOV? What prevents it from opening under vac?
Boltz- There is a spring in there to return the valve to the closed position around 3" of vacuum depending on the adjustment setting. But it does stay open under vac, which is why we always recommend re-circ as the #1 setup. We we're fighting for a long time with keeping it closed under vac, but come to find in application that users actually see the best performance with it open under vac.

The reason why there are so many vac fittings on the Synchronic unit, is because each vac fitting acts on a different amount of surface area. So you can actually move the vac signal around to tune the response for the each users setup. Pull-type valves are great, because they seal boost. They are horrible because they seal boost so well that the more boost you run, the harder it is for the same amount of vac to pull it open. And that is why, there is the boost-only port, to equalize the pressure on either side of the piston, so that the BOV always opens.
Old May 8, 2008 | 03:01 PM
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Old May 8, 2008 | 03:46 PM
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pm sent
Old May 19, 2008 | 02:07 AM
  #20  
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Very interested in purchasing this bov with the installation flange. How hard is it to install? shoot me a pm with a price shipped to 89002. Thanks

p.s. Does anyone know what kind of exhaust that guy had in the video?
Old May 19, 2008 | 05:27 AM
  #21  
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Can someone explain the options available with the unit?
Old May 19, 2008 | 09:07 AM
  #22  
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Very, very easy to install. It is a direct replacement for the stock DV. Some massaging of hoses required, but it fits well.

What options would you like to know about?
Old May 21, 2008 | 02:10 PM
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Old Jun 2, 2008 | 10:23 AM
  #24  
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Old Jun 24, 2008 | 11:22 AM
  #25  
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bump for more ppl who like this....im running 30psi....will it hold and not break?
and its $186 if i have stock UICP? just reaplaceing stock 9dv....stock hoses everything.....

and be stright up, you sell other BOVs...is this really the best one you have seen? and if im not statified what is the return policy?

Last edited by Lancerguy'03; Jun 24, 2008 at 11:27 AM.
Old Jun 24, 2008 | 01:57 PM
  #26  
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bump for the vendor....?
Old Jun 25, 2008 | 07:10 AM
  #27  
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moring bump
Old Jun 25, 2008 | 09:25 AM
  #28  
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hello? anyone have any opions on this BOV?
Old Jul 17, 2008 | 02:07 PM
  #29  
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Just got another shipment in.
Old Jul 19, 2008 | 08:10 PM
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I run it on my car and like everyone else that has said something it works great. drive ability is a A+. I think it reacts so fast and responsive to the slightest change in throttle. Cant get any better than this one I would have to say.

Also I will be changing my uicp pipe soon so I need to order a new adapter flange. Im not sure yet what one but I think it may be a tial flange so its vband. So if you could Chris send me a link to the adapter. THanks.



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