mike43 Posted August 24, 2009 Report Share Posted August 24, 2009 Hi, I was in search to purchase a bov and came across the Synapse bov and looks pretty impressive, came across a company that is willing to give a GP. Is anyone interested, waiting on price confirmation with either alum/steel mount. Mike Quote Link to comment Share on other sites More sharing options...
Lives4Speed Posted August 24, 2009 Report Share Posted August 24, 2009 (edited) Possible. Information on L4S Edited August 24, 2009 by Lives4Speed Quote Link to comment Share on other sites More sharing options...
IntercooledFlatty Posted August 24, 2009 Report Share Posted August 24, 2009 let's have a look see and a $ :biggrinumbrella1: Quote Link to comment Share on other sites More sharing options...
Komeuppance Posted August 24, 2009 Report Share Posted August 24, 2009 I saw that video a long time ago and laughed pretty hard about how the guy was turning the throttle with so much wrist action... LOL... making it super dramatic... -Robert Quote Link to comment Share on other sites More sharing options...
travs87tsi Posted August 24, 2009 Report Share Posted August 24, 2009 (edited) even though this is the "iconic synchronic" bov I do see some problems using this on a quest still running a MAS. They say on their site that it is a normally open pull type and that it is open under vacuum. This will equate to a big vacuum leak that will cause problems on a MAS equipped car. This type can only be used on a MAP car. they say at the bottom that you should run it recirculating for maximum performance and reliability on a MAF car. what they should have said was if you have a mass air flow sensor your car will run like crap under vacuum conditions unless you run recirculating. I am not bashing this at all. It seems to be a good design if used with a MAP or recirculating. I just don't want people getting them and then not understanding why their car runs badly after installing it to vent to the atmosphere. So please pay attention to your intentions if you want to run this at the benediction. this is from their site: Description Universal Synchronic BOV package – SB001A is the iconic Synchronic BOV that has set the standard for impossibly fast response from a BOV/DV. Completely modular, it can be installed as a vent-to-atmosphere BOV or re-circulating diverter valve. This universal package can be outfitted to most any application utilizing our interchangeable mounting flange system. By design, it is a pull-type valve only. This means that boost pressure keeps it closed, meaning no boost leaks upwards of 100+ psi of boost. It operates in a normally open condition. This means that it is designed to remain open under vacuum conditions. For maximum performance and reliability, it is recommended to install the Synchronic BOV in a re-circulated configuration with the discharge between the MAF sensor and turbocharger inlet. Edited August 24, 2009 by travs87tsi Quote Link to comment Share on other sites More sharing options...
JohnnyWadd Posted August 24, 2009 Report Share Posted August 24, 2009 wouldnt this actually pull in ummetered air in a mas equipped car and lean it out under vacum? when hooked up recirculate i mean... Quote Link to comment Share on other sites More sharing options...
D_Venable Posted August 25, 2009 Report Share Posted August 25, 2009 wouldnt this actually pull in ummetered air in a mas equipped car and lean it out under vacum? when hooked up recirculate i mean... NO, when hooked up properly for a recirculation, it would actually affect running in no way, as the air the turbo is pushing just gets put back right in front of the turbo. the "vacuum" pull is on the engine side of the throttle body, which keeps the BOV open, causing the air the turbo is pushing at idle, as little as it is, to be pushed out the valve. thus the need to recirculate it with a MAS setup like we have. if it's not recirculated, you loose the air that goes through the MAS, and run rich, because the ECU sees the air going through, so it sends fuel. Quote Link to comment Share on other sites More sharing options...
mike43 Posted August 25, 2009 Author Report Share Posted August 25, 2009 NO, when hooked up properly for a recirculation, it would actually affect running in no way, as the air the turbo is pushing just gets put back right in front of the turbo. the "vacuum" pull is on the engine side of the throttle body, which keeps the BOV open, causing the air the turbo is pushing at idle, as little as it is, to be pushed out the valve. thus the need to recirculate it with a MAS setup like we have. if it's not recirculated, you loose the air that goes through the MAS, and run rich, because the ECU sees the air going through, so it sends fuel. So what is the consensus ? Quote Link to comment Share on other sites More sharing options...
D_Venable Posted August 25, 2009 Report Share Posted August 25, 2009 you need to either have a MAP, or speed density setup (more than likely is on MPI if your at this point) a blow-thru setup with the MAS/MAF AFTER the BOV, or run it as a by-pass valve Quote Link to comment Share on other sites More sharing options...
JohnnyWadd Posted August 25, 2009 Report Share Posted August 25, 2009 NO, when hooked up properly for a recirculation, it would actually affect running in no way, as the air the turbo is pushing just gets put back right in front of the turbo. the "vacuum" pull is on the engine side of the throttle body, which keeps the BOV open, causing the air the turbo is pushing at idle, as little as it is, to be pushed out the valve. thus the need to recirculate it with a MAS setup like we have. if it's not recirculated, you loose the air that goes through the MAS, and run rich, because the ECU sees the air going through, so it sends fuel. ya thats what i mean some air is going back to the accordian pipe past the mass. i gues thats only at idle though. Quote Link to comment Share on other sites More sharing options...
mike43 Posted August 25, 2009 Author Report Share Posted August 25, 2009 ya thats what i mean some air is going back to the accordian pipe past the mass. i gues thats only at idle though. I ran the HKS bypass till recently when I got rid of the cloth pipes and went with the 2.5 IC pipes. So the distributor is offering the synapse for $185 shipped with the mount on a GP of 3. Quote Link to comment Share on other sites More sharing options...
Lives4Speed Posted August 25, 2009 Report Share Posted August 25, 2009 If the goal is for your car to go WHOOOOOOOOOOOSH! This is NOT the BOV of choice for your car as you will hafta set it up for Recirculating. Unless, as Dereck pointed out, you have a blow thru set up. Most of the members I would venture to say would have to set this valve up for recirc. thus eliminating their WHOOOOOOOOOOOSH! Factor. So you may be able to get the GP up to 3. I like the valve but won't have the need for it just yet. Can't spare the $$ right now either. L4S Quote Link to comment Share on other sites More sharing options...
Casey_L Posted August 26, 2009 Report Share Posted August 26, 2009 How much do these cost retail? Quote Link to comment Share on other sites More sharing options...
mike43 Posted August 26, 2009 Author Report Share Posted August 26, 2009 How much do these cost retail? Hi Casey, If you check on line they average about $197, then 20-25 for mount, then shipping. This distributor will do it shipped for $185, min of 3 people. Quote Link to comment Share on other sites More sharing options...
RWDAddict Posted September 2, 2009 Report Share Posted September 2, 2009 I'd be in for one but i'd need it right away, like overnight. Quote Link to comment Share on other sites More sharing options...
JohnnyWadd Posted September 3, 2009 Report Share Posted September 3, 2009 i might be in for recirculate set up. i want to sell my g reddy bov . Quote Link to comment Share on other sites More sharing options...
RWDAddict Posted September 3, 2009 Report Share Posted September 3, 2009 I'm going to order one today be it through here or ebay. Let me know. Quote Link to comment Share on other sites More sharing options...
mike43 Posted September 4, 2009 Author Report Share Posted September 4, 2009 I'm going to order one today be it through here or ebay. Let me know. Hi, I can give you the contact, I'm not making anything on this just trying to help out. I will get you the contact info. mike Quote Link to comment Share on other sites More sharing options...
mike43 Posted September 4, 2009 Author Report Share Posted September 4, 2009 I'd be in for one but i'd need it right away, like overnight. His e-mail address is importaif@yahoo.com. Mention my name mike pena Quote Link to comment Share on other sites More sharing options...
joe87tsi Posted September 7, 2009 Report Share Posted September 7, 2009 they do have an anti-stall adaptor for maf equiped cars, so it can be vented http://synapseengineering.com/cart/product...e_Kit-12-2.html Quote Link to comment Share on other sites More sharing options...
JohnnyWadd Posted October 10, 2009 Report Share Posted October 10, 2009 someone needs to throw on of these on a starion mas equipped and see how it works Quote Link to comment Share on other sites More sharing options...
mike43 Posted October 10, 2009 Author Report Share Posted October 10, 2009 Hi Johnny Guess I'm the gunea pig, just had mine welded on, just need to run the vacuum lines. The boost line and the recirculating one I'm going to have the most trouble. The boost I guess I;ll get from the nipple on the intake pipe, although I have my evc boost controler going there, would have to tee it. Then the front port need to find a hose that is very flexible that can turn and need to get a bung welded to the ahp pipe. I will keep you posted and send pics. Mike Quote Link to comment Share on other sites More sharing options...
DryBear Posted October 11, 2009 Report Share Posted October 11, 2009 FYI, I've read on an Evo forum that the Synapse BOV likes to be mounted horizontally for best results. Check out this thread:http://evoempire.org/index.php/topic/5070-synapse-engineering-bov/ Quote Link to comment Share on other sites More sharing options...
mike43 Posted October 11, 2009 Author Report Share Posted October 11, 2009 FYI, I've read on an Evo forum that the Synapse BOV likes to be mounted horizontally for best results. Check out this thread:http://evoempire.org/index.php/topic/5070-synapse-engineering-bov/ that's how I mounted it, the issue now is running the front part to the airbox. Quote Link to comment Share on other sites More sharing options...
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