Synapse Synchronic BOV with dejon pipes
01-10-2009, 06:49 PM
#132
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01-10-2009, 09:56 PM
#134
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This is where I want the bov to be on the pipes. (NOTE: I made this and it sucks I know I have never used GIMP before).
I would like to route the blow off back to the intake after the maf so it functions just like the stock one.
I would like to route the blow off back to the intake after the maf so it functions just like the stock one.
01-10-2009, 10:20 PM
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01-10-2009, 10:22 PM
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all 4 people are running in their cars.
2 said to use a block off and 2 said to just route it back to the factory bypass valve
2 said to use a block off and 2 said to just route it back to the factory bypass valve
Last edited by kling1022; 01-10-2009 at 10:22 PM. Reason: Automerged Doublepost
01-10-2009, 10:32 PM
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here is a mini how to:
remove the hose from the bypass valve.
run this hose into your aftermarket bov
install block off plate to bypass valve or
run a boost/vaccum hose from intake manifold to bypass.
both work and work well.
And again there is no concerns with running a atmospheric BOV !
01-10-2009, 10:48 PM
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well thank you sir. I appreciate you writing that mini how to. You know i think i might just try it both ways and see which one i like more
So will this get rid of your no lift shift option since the bov isn't blowing the unused boost back to hold boost when you change gears?
So will this get rid of your no lift shift option since the bov isn't blowing the unused boost back to hold boost when you change gears?
Last edited by kling1022; 01-10-2009 at 10:48 PM. Reason: Automerged Doublepost
01-10-2009, 10:55 PM
#143
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I am not worried about venting to the atmosphere I just don't want to.
I personally feel that the bov should be re-routed to the intake because when venting to the atmosphere you are losing energy your engine worked to get the air in and you are letting it out this is not really a performance issue just a personal opinion.
And my last car was a 2g eclipse gsx which went nuts when you VTA (vented to atmosphere) because the ecu actually had that air calculated to be there. Plus supposedly it helps keep the turbo spooled when you shift I have no idea if this is true.
Plus this is not really a just for noise mod when 08blackss/tc gets his gt30 to market I want a bov that will be able to handle the extra boost. And the synapse bov is a normally open valve allowing air to enter it and bypass the turbo before it begins to build boost supposedly increasing throttle response in the lower rpm range. this would also let air enter un-metered by the maf and that in any maf car equals a boost leak.
Boost leak= Evil
I personally feel that the bov should be re-routed to the intake because when venting to the atmosphere you are losing energy your engine worked to get the air in and you are letting it out this is not really a performance issue just a personal opinion.
And my last car was a 2g eclipse gsx which went nuts when you VTA (vented to atmosphere) because the ecu actually had that air calculated to be there. Plus supposedly it helps keep the turbo spooled when you shift I have no idea if this is true.
Plus this is not really a just for noise mod when 08blackss/tc gets his gt30 to market I want a bov that will be able to handle the extra boost. And the synapse bov is a normally open valve allowing air to enter it and bypass the turbo before it begins to build boost supposedly increasing throttle response in the lower rpm range. this would also let air enter un-metered by the maf and that in any maf car equals a boost leak.
Boost leak= Evil
01-10-2009, 11:55 PM
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Plus this is not really a just for noise mod when 08blackss/tc gets his gt30 to market I want a bov that will be able to handle the extra boost. And the synapse bov is a normally open valve allowing air to enter it and bypass the turbo before it begins to build boost supposedly increasing throttle response in the lower rpm range. this would also let air enter un-metered by the maf and that in any maf car equals a boost leak.
Boost leak= Evil
Boost leak= Evil
Also, there is some false info here my friend. The Synchronic BOV does NOT allow any air to come in thru the BOV, it is always venting air out. Check it out http://www.youtube.com/watch?v=B_RWZ...e=channel_page
Last edited by 08BlackSS/TC; 01-11-2009 at 12:15 AM.
01-11-2009, 01:18 AM
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wow that guy with the bmw needs to fix his issues and not say that is suposed to be like that because that is broken. Your blow off valve should never i repeat never blow out like that during idle..
granted his turbos are "effiecent enough" meaning they are the size of my pinky and have no lag but he should have the bov set-up to close during a boost condition or at least buy the anti-stall kit they sell for it which makes it normally closed so no he has it done wrong period.
I am really suprised that that is a synapse official video I was always told that air exiting before going into the engine is a boost leak. At least that car is a MAP sensor car and not a MAF sensor I am sure that if he fixed the "leak" his car would actually have a faster throttle response. And I would love to debate this with the guy at synapse who made that broke set-up. Either he didn't want to take the time to tune for the extra air that is being fed into the engine with it closed or he has to do it that way to aciehve vacuum. That is the only explanation is that his turbos are so "effiecent" that they are creating boost at idle and the only way to create the vacuum was to bleed off the boost. but I can really only say wow.
granted his turbos are "effiecent enough" meaning they are the size of my pinky and have no lag but he should have the bov set-up to close during a boost condition or at least buy the anti-stall kit they sell for it which makes it normally closed so no he has it done wrong period.
I am really suprised that that is a synapse official video I was always told that air exiting before going into the engine is a boost leak. At least that car is a MAP sensor car and not a MAF sensor I am sure that if he fixed the "leak" his car would actually have a faster throttle response. And I would love to debate this with the guy at synapse who made that broke set-up. Either he didn't want to take the time to tune for the extra air that is being fed into the engine with it closed or he has to do it that way to aciehve vacuum. That is the only explanation is that his turbos are so "effiecent" that they are creating boost at idle and the only way to create the vacuum was to bleed off the boost. but I can really only say wow.
01-12-2009, 12:54 PM
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01-12-2009, 07:42 PM
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if you are going to be venting to atmosphere then I would say yes because even if the maf can pick up on changes it wont be able to calculate the extra air that is being drawn in from the bov.
This is a normally open valve meaning it acts like our stock recirculating valve. when vacuum is present it is open letting air in to the intake tract after the maf has already metered the air that it has drawn in. and when you have two openings in an air pipe the air is drawn from the point of least resistance. so basically you will be letting in un-metered air which is bad because it is air that the ecu does not see. plus less air will be drawn in through the maf. this should have the effect of leaning out the engine. the wideband may pick up on this and eventually compensate for it. I can test this when I order my pipes and bov.
Btw when watching some of the videos from synapse I am starting to think they don't have an intemment knowledge of the cars they are installing their products on. Also I read a forum post about someone trying to hook up the bov and it has 3 ports for vacuum or boost btw. and they litterally told him to just try different things till it worked. so I think they made an awesome bov but maybe they might not have the customer service up to speed yet.
This is a normally open valve meaning it acts like our stock recirculating valve. when vacuum is present it is open letting air in to the intake tract after the maf has already metered the air that it has drawn in. and when you have two openings in an air pipe the air is drawn from the point of least resistance. so basically you will be letting in un-metered air which is bad because it is air that the ecu does not see. plus less air will be drawn in through the maf. this should have the effect of leaning out the engine. the wideband may pick up on this and eventually compensate for it. I can test this when I order my pipes and bov.
Btw when watching some of the videos from synapse I am starting to think they don't have an intemment knowledge of the cars they are installing their products on. Also I read a forum post about someone trying to hook up the bov and it has 3 ports for vacuum or boost btw. and they litterally told him to just try different things till it worked. so I think they made an awesome bov but maybe they might not have the customer service up to speed yet.