Synapse Synchronic BOV with dejon pipes
01-29-2009, 10:53 PM
#177
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it is big and heavy i would say easily 2 pounds.
I will install it tommorow but I will only be hooking it up to the boost nipple on the elbow so it will not open. I will be leaving the stock one intact. When I get the intake it should look a little like this.
sorry its ugly
I will install it tommorow but I will only be hooking it up to the boost nipple on the elbow so it will not open. I will be leaving the stock one intact. When I get the intake it should look a little like this.
sorry its ugly
01-29-2009, 11:29 PM
#178
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I finally got to reading this thread. I'd sure like to see some data showing that you loose 2 hp with an aluminum pipes vs steel. But, Guess What? we can make steel IC pipes, just thought aluminum for the same price was a better deal. After 10 years in this business, I though I knew what customers wanted, but I'm always surprised. I'll update our web page to let you choose.
01-29-2009, 11:34 PM
#179
2hp don't matter that unnoticeable, I wouldn't care for 2hahaha, good job dejon pipes look real good although I think I should offer more color choices
Oh and to the guy that questioned my turbo, Im taking ur advise on going bigger, just not a t28, I'm going with the slowboyracing turbo sbr-g50
Oh and to the guy that questioned my turbo, Im taking ur advise on going bigger, just not a t28, I'm going with the slowboyracing turbo sbr-g50
01-30-2009, 08:48 AM
#180
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wow thats a bit of a jump up from a t-25 
and yeah the difference in steel vs aluminum is slim to none. you might add 5 pounds to the front end though.
Anyways the project is chugging along. I think I want to add an oil catch can to the intake so I can keep the closed loop to the crank case vent.
I will talk with dave to see about the custom intake I need.
and yeah the difference in steel vs aluminum is slim to none. you might add 5 pounds to the front end though
. Anyways the project is chugging along. I think I want to add an oil catch can to the intake so I can keep the closed loop to the crank case vent.
I will talk with dave to see about the custom intake I need.
01-30-2009, 01:20 PM
#181
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wow thats a bit of a jump up from a t-25
and yeah the difference in steel vs aluminum is slim to none. you might add 5 pounds to the front end though.
Anyways the project is chugging along. I think I want to add an oil catch can to the intake so I can keep the closed loop to the crank case vent.
I will talk with dave to see about the custom intake I need.
and yeah the difference in steel vs aluminum is slim to none. you might add 5 pounds to the front end though
. Anyways the project is chugging along. I think I want to add an oil catch can to the intake so I can keep the closed loop to the crank case vent.
I will talk with dave to see about the custom intake I need.
01-30-2009, 01:53 PM
#183
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hello all.
I am the proud owner of an 08 cobalt ss and want to start the modding it looks like GM has finally taken point on this car and I will be getting the stage 2 as soon as I can however In the mean time I want to start piecing together my bolt ons which will be as follows.
IC piping,
Intake,
exhaust,
and maybe intercooler, They are still a little pricey.
Question is what do you think of using a synapse synchronic on dejon pipes with an hks flange.
I am the proud owner of an 08 cobalt ss and want to start the modding it looks like GM has finally taken point on this car and I will be getting the stage 2 as soon as I can however In the mean time I want to start piecing together my bolt ons which will be as follows.
IC piping,
Intake,
exhaust,
and maybe intercooler, They are still a little pricey.
Question is what do you think of using a synapse synchronic on dejon pipes with an hks flange.
https://www.cobaltss.net/forums/synapse-motorsport-164/charge-piping-group-buy-131531/
https://www.cobaltss.net/forums/synapse-motorsport-164/synapse-motorsport-ss-tc-3-downpipe-122218/
https://www.cobaltss.net/forums/synapse-motorsport-164/synapseturbo-holiday-sale-145170/
By the way, the synchronic is a good choice. diaphram BOVs are good but the piston types are a little better IMO
01-31-2009, 01:54 AM
#184
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ok here is my first impressions.
intercooler piping rocks I didn't have any issues with the fit.
our turbo does blow air out at idle and is greater than engine vacuum so does the bov, so to the guy who told me so you can now tell me I told you so.
I still believe that this is due to how small and effiecient the turbo is on a larger turbo I do not think this would happen but I don't have a larger one to test yet.
I am glad I went with the greddy flange because that was going to be my second option of bov I still want to reroute it back to the intake it may not do anything but at least its not just going to the air. Probably going to sell the synchronic and get a greddy type rs.
This bov does work by the way just not the way I want it to. as of now if I hook it up it would just be a big boost leak. You can get the anti-stall kit and just vent it to the atmosphere but that is not what I want to do.
I am still going to experiment some more with it to see what all I can make it do and not do and I will post my findings.
It does look pretty sweet in the engine bay though
I removed the tube thing on the intake while the bumper was off.
by the way I took measurements of the intercooler and I will post them tommorow in case any one wants to know.
intercooler piping rocks I didn't have any issues with the fit.
our turbo does blow air out at idle and is greater than engine vacuum so does the bov, so to the guy who told me so you can now tell me I told you so.
I still believe that this is due to how small and effiecient the turbo is on a larger turbo I do not think this would happen but I don't have a larger one to test yet.
I am glad I went with the greddy flange because that was going to be my second option of bov I still want to reroute it back to the intake it may not do anything but at least its not just going to the air. Probably going to sell the synchronic and get a greddy type rs.
This bov does work by the way just not the way I want it to. as of now if I hook it up it would just be a big boost leak. You can get the anti-stall kit and just vent it to the atmosphere but that is not what I want to do.
I am still going to experiment some more with it to see what all I can make it do and not do and I will post my findings.
It does look pretty sweet in the engine bay though
I removed the tube thing on the intake while the bumper was off.
by the way I took measurements of the intercooler and I will post them tommorow in case any one wants to know.
01-31-2009, 11:04 AM
#186
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today I will try to borrow a boost gauge from a friend and hook it to the boost nipple on the elbow to try to see if it does pull vacuum for a short while under load, this may happen under a full throttle condition or even part way. I will post my findings
01-31-2009, 02:31 PM
#188
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ok I tested it today.
It works in only one way right now and still can make the car stall a bit coming to a stop if you were giving it throttle.
I have ports a and b hooked to where the factory bov would be at the solenoid and I have nothing to port c
This bov will not work with out the anti-stall kit at least not vented it DOES interfere with the car and makes it stall.
As for the stock bov NO delete plate is needed
again you do not need a delete plate, I hooked it up to the boost nipple and even installed a check valve inline I never felt or heard it open or even start to open.
The bov sounds great by the way sounds kinda like a quite turboxs type h.
I think I am going to sell it to a friend locally though and get either a greddy or turboxs recirulating bov I havn't decided and once I get it I will try venting to the atmosphere first because I didn't see anything wrong with that part of my experiment.
I still think returning it into the intake is better but I want to see the effects it has on how the car feels if I don't.
It works in only one way right now and still can make the car stall a bit coming to a stop if you were giving it throttle.
I have ports a and b hooked to where the factory bov would be at the solenoid and I have nothing to port c
This bov will not work with out the anti-stall kit at least not vented it DOES interfere with the car and makes it stall.
As for the stock bov NO delete plate is needed
again you do not need a delete plate, I hooked it up to the boost nipple and even installed a check valve inline I never felt or heard it open or even start to open.
The bov sounds great by the way sounds kinda like a quite turboxs type h.
I think I am going to sell it to a friend locally though and get either a greddy or turboxs recirulating bov I havn't decided and once I get it I will try venting to the atmosphere first because I didn't see anything wrong with that part of my experiment.
I still think returning it into the intake is better but I want to see the effects it has on how the car feels if I don't.
01-31-2009, 06:41 PM
#189
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I just installed my piping with the greddy rs and it looses pressure at 12 psi when my boost goes to 20 since I am tuned. So I tried tightening it and still the same thing. Any ideas? And I ran the wires like dave from Dejon has up on the site
01-31-2009, 07:10 PM
#190
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can you post some pics of your install.
and does your rs have one or two vacuum nipples???
also see if air is coming out or into it from the hole below the top if it is it is broken.
Its been a while since I used a greddy and after reading up on them I am thinking that they are not the way to go too many people have reported the diaprham ruptured. I wish some one would have made an adjustable 1g dsm blow valve now that is a valve I am going to look into using. I think there is a way to do it its just been a while since I read how to.
and does your rs have one or two vacuum nipples???
also see if air is coming out or into it from the hole below the top if it is it is broken.
Its been a while since I used a greddy and after reading up on them I am thinking that they are not the way to go too many people have reported the diaprham ruptured. I wish some one would have made an adjustable 1g dsm blow valve now that is a valve I am going to look into using. I think there is a way to do it its just been a while since I read how to.
01-31-2009, 09:39 PM
#191
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can you post some pics of your install.
and does your rs have one or two vacuum nipples???
also see if air is coming out or into it from the hole below the top if it is it is broken.
Its been a while since I used a greddy and after reading up on them I am thinking that they are not the way to go too many people have reported the diaprham ruptured. I wish some one would have made an adjustable 1g dsm blow valve now that is a valve I am going to look into using. I think there is a way to do it its just been a while since I read how to.
and does your rs have one or two vacuum nipples???
also see if air is coming out or into it from the hole below the top if it is it is broken.
Its been a while since I used a greddy and after reading up on them I am thinking that they are not the way to go too many people have reported the diaprham ruptured. I wish some one would have made an adjustable 1g dsm blow valve now that is a valve I am going to look into using. I think there is a way to do it its just been a while since I read how to.
02-01-2009, 12:16 AM
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02-01-2009, 10:12 AM
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02-01-2009, 03:57 PM
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ok do this for me.
hook up the greddy to the boost only and your stock bov back to where it was go for a test drive and see if you are still having the same issue. If you are not having the issue then I wold suspect the greddy has a blown diaphram you can see if it is leaking air by checking the small vent hole on the underside of the top just below the nipple if it is then your diaphram is gone.
also you may need to hook it up to a true vacuum/boost source which is the one coming off the manifold or the bottom of the solenoid it may not be holding shut properly without a true signal
I may have found a way to make the synchronic work properly but it involves making a vacuum/boost control module that I just got done designing I may try it I may not depends on the price of the parts but I am very proud of my design so far I will keep you posted and If I decide to do nothing with it I may post a how too because It will eliminate leaky blow off valves and possibly eliminate compressor surge from using pull and push type blow off valves.
hook up the greddy to the boost only and your stock bov back to where it was go for a test drive and see if you are still having the same issue. If you are not having the issue then I wold suspect the greddy has a blown diaphram you can see if it is leaking air by checking the small vent hole on the underside of the top just below the nipple if it is then your diaphram is gone.
also you may need to hook it up to a true vacuum/boost source which is the one coming off the manifold or the bottom of the solenoid it may not be holding shut properly without a true signal
I may have found a way to make the synchronic work properly but it involves making a vacuum/boost control module that I just got done designing I may try it I may not depends on the price of the parts but I am very proud of my design so far I will keep you posted and If I decide to do nothing with it I may post a how too because It will eliminate leaky blow off valves and possibly eliminate compressor surge from using pull and push type blow off valves.