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Old 08-02-2010, 07:04 PM   #1 (permalink)
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Club Region: SoCal
Registered: Sep 2007
Posts: 2
Reputation: Synapse is an unknown
Latest Major Revision

Synapse Engineering would like to announce the latest major revision of the Synchronic SB001 blow-off valve. Over the last couple of years we have been integrating some small changes in the BOV design to improve ease of installation and durability. However, one thing has remained unchanged, the design of the base unit of actuation! The geometries & mathematical ratios have stayed the same from the very first prototype. We want to thank all of the early adopters that have given the product its first shot, even when there was only an M3 set screw & 3 brass ports to plumb. We definitely listened and made sure to integrate all of the community's feedback on the latest revision.



Improvements to the design are the following:

(1) M4 mounting bolts- The mounting bolts have now been changed over from M4 set screws to M4 bolts to give users the ability to apply more force when tightening down the BOV on mounting flanges.

(2) Elimination of port C on the side of the BOV- This port is now internally ported on the design and is the hallmark of the latest revision. Performance of the BOV & it's ~17 millisecond initial response time remain unchanged. The original design with an external port C was made public in case there would be the occasional application that required the boost-only source to be plumbed before the intercooler to make use of the pressure difference that may (or may not) exist before and after the intercooler. We have always had our own units internally ported for simplicity and have rigorously tested & validated this change for over 3 years. We will still have the original design in limited quantities and available only for special orders and industrial applications. We believe that the benefits in having one less connection to plumb (or fail) far outweighed the 1% of users out there that needed the externally ported design.

(3) Change to 1/8th NPT threaded vacuum ports- This design change has eliminated the use of the small M4 brass fittings. Although the initial design was compact and very light weight, we received enough feedback that prompted the change. We want to show that we do, in fact, listen to customer feedback, take it very seriously, and will only make a change after significant testing. With this change, you will no longer be able to over tighten and break brass fittings. You can also use our boost-connect fittings, which includes a 90 degree fitting for use in very tight installations. You should also know that this new back cap design is backwards compatible with even the very first Synchronic BOV released to market. You can upgrade your Synchronic BOV to this latest back cap using kit # SB001A.KIT022.
All of the universal Synchronic BOVs & application specific kits available in the market today should include all of the improvements above.
Thank you again for your support and your patience as we work to make the product the best it can possibly be. And to all of the customers, your patronage is making an impact and funding our research into developing technologies that you can actually say you helped make happen. Thank you.
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Additional information below on the history of the revisions

Port C BOV



Port C Eliminated BOV



1/8npt brass fittings



1/8npt 1 touch pneumatic fittings



1/8npt upgrade kit (SB001A.KIT022)



Old Brass fitting vs. 1/8npt vs. 1-touch pneumatic Boost Connect fitting



M4 mounting bolts- The mounting bolts have now been changed over from M4 set screws to M4 bolts to give users the ability to apply more force when tightening down the BOV on mounting flanges.



New mounting flange geometry- This new design eliminates any chance of o-rings getting damaged upon installation.
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