Post your Synapse DV config and results
Nov 4, 2011, 01:42 PM
#316
Nov 4, 2011, 03:34 PM
#317
Im an old man, so with what little hearing i have left, i choose not to listen to the bov.
Plus my recirc air is shooting / aimed into the compressor.... so in theory, i am using that forced air to an extent.
Plus my recirc air is shooting / aimed into the compressor.... so in theory, i am using that forced air to an extent.
Last edited by Aby@MIL.SPEC; Nov 4, 2011 at 03:36 PM.
Nov 22, 2011, 09:38 AM
#320
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Did a boost leak test on my car... and the port side/fittings on the synapse dv were leaking big time. I even teflon taped them and they were still leaking. I've read through this thread and there was a person who had a similar problem but there was no follow up...
Is this normal? Are those fittings supposed to leak? Maybe synapse can chime in. They are the barb type fittings where you slip the hose over them, they came with the kit
Is this normal? Are those fittings supposed to leak? Maybe synapse can chime in. They are the barb type fittings where you slip the hose over them, they came with the kit
Dec 5, 2011, 10:16 AM
#322
Installed the DV this weekend. It's whistling at idle and leaking air out, I assume because I'm running no preload. Also getting a fair amount of flutter so I'm going to verify which port I'm using again, I may have swapped the top of the unit around during spring installation.
Also question to everyone: Can others twist/rotate the inlet/outlet flange even after installation? I have the clamps tight, they can't really go any tighter but I can still twist the adapter flange with my fingers. I don't know if it's leaking or not and I'm hoping this is how it's supposed to be and the o-ring is actually doing all the sealing. Hopefully that made sense to someone. *edit* I opened a ticket with Synapse too to see what they think.
Also question to everyone: Can others twist/rotate the inlet/outlet flange even after installation? I have the clamps tight, they can't really go any tighter but I can still twist the adapter flange with my fingers. I don't know if it's leaking or not and I'm hoping this is how it's supposed to be and the o-ring is actually doing all the sealing. Hopefully that made sense to someone. *edit* I opened a ticket with Synapse too to see what they think.
Last edited by boostedwrx; Dec 5, 2011 at 10:47 AM.
Dec 5, 2011, 11:05 AM
#323
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Installed the DV this weekend. It's whistling at idle and leaking air out, I assume because I'm running no preload. Also getting a fair amount of flutter so I'm going to verify which port I'm using again, I may have swapped the top of the unit around during spring installation.
Also question to everyone: Can others twist/rotate the inlet/outlet flange even after installation? I have the clamps tight, they can't really go any tighter but I can still twist the adapter flange with my fingers. I don't know if it's leaking or not and I'm hoping this is how it's supposed to be and the o-ring is actually doing all the sealing. Hopefully that made sense to someone.
Also question to everyone: Can others twist/rotate the inlet/outlet flange even after installation? I have the clamps tight, they can't really go any tighter but I can still twist the adapter flange with my fingers. I don't know if it's leaking or not and I'm hoping this is how it's supposed to be and the o-ring is actually doing all the sealing. Hopefully that made sense to someone.
Leaking air- Not under boost? Can you feel it? Where is it leaking from? Spray it with soapy water to identify the source.
Flutter- I'm running Port B, A is VTA, push mode. I still get occasionally but I also sometimes got it with the stock DV.
Swapped top around- I assume you're using Aby's spring. All that needed done was taking off the end cap and change the spring. I'm not sure what you meant by this.
Twisting the flanges- I could twist mine but it took some force. The o ring is going to do all the sealing but if you can easily turn the flanges with your fingers I would try some new rings.
I hope this helps. Good luck.
Dec 5, 2011, 11:12 AM
#324
Correct on the twisting the flanges - I can twist them with my fingers and the lock rings are all the way tight which is my main concern. The air leaking out the outlet flange @ idle seems normal to me because of the zero preload & my larger Synapse BOV also leaked a little at idle, once you give it gas the vacuum causes it to close and not to leak. And yes when I installed Abby's spring I may have rotated teh top of the assembly when I reinstalled it 
Thanks for the thoughts. Oh I'm running push mode, SD, VTA also so may be different from others.
Thanks for the thoughts. Oh I'm running push mode, SD, VTA also so may be different from others.
Dec 6, 2011, 11:31 AM
#325
Sounds like the flanges rotating is fine. Here is what I got back from Synapse:
"The DV flanges are designed to rotate, as the O-ring is doing all of the sealing. The Clamps are not designed to prevent rotation, only the flange from popping out of the port. The DVs with flanges are designed and tested to withstand about 60 psi of boost without failure from the factory."
"The DV flanges are designed to rotate, as the O-ring is doing all of the sealing. The Clamps are not designed to prevent rotation, only the flange from popping out of the port. The DVs with flanges are designed and tested to withstand about 60 psi of boost without failure from the factory."
Jan 15, 2012, 08:30 PM
#330
I've suspected this as well but I typically only notice it in the first minute or two if the car is really cold and I don't give it much time to warm up. Mine isn't really compressor surge though. I just hear the DV flutter a little when it activates between shifts.