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Old 08-28-2008, 04:13 PM   #51
irascible
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Quote:
Originally Posted by fastnoypi View Post
great bov..it can suck in dirt , sand and bugs at idle and cruising. plan on on buying a new turbo or replacement piston rings when they're grinded down from debris.

how is this supposed to be good on a MAF car?
It's a recirculated BPV, and they suggest a filter in their instructions if you plan on converting it to a BOV.

I've watched all the video's and ordered this BOV for my car along with the SS flange to weld onto my DR525 FMIC piping.
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Old 09-01-2008, 12:22 AM   #52
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Good stuff im sold again.

But I like my stocker...

If I buy one this will be it.
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Old 10-16-2008, 05:48 PM   #53
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Quote:
Originally Posted by irascible View Post
It's a recirculated BPV, and they suggest a filter in their instructions if you plan on converting it to a BOV.

I've watched all the video's and ordered this BOV for my car along with the SS flange to weld onto my DR525 FMIC piping.
i didnt subscribe to this thread so i missed this post.

So how is your experience with this BOV as an owner?
please post your review. I'd rather see your posted review than make an assumption based on local hear say.

I've watched all the videos too, if it had a spring like all the other bovs/bpv's then it shouldnt need a filter. I still don't see how i can be good on a MAF car. MAP-based would not be a concern.
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Old 11-22-2008, 08:26 AM   #54
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ok well since they don't make a option for it to mount to the tmic " which really sux " here are a few ways. you can buy these adapters and then use their adapters with these to mount it to the tmic.

GReddy BOV Flange for Subaru WRX/STI




and


HKS BOV Adapter Flange for Subaru WRX/STI



Now they do make an adapter for the 08+ subaru's.
http://synapseengineering.com/smf/in...6f&topic=218.0



if you plan on adding it to the tmic, i would suggest you get the HKS adapter. Why? Because it will have more angle options to it since its held in with a c-clamp.

Last edited by Hot Wheels; 11-22-2008 at 08:45 AM.
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Old 11-25-2008, 02:30 PM   #55
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How can i make this work on my 02 wrx TMIC ? can I get the HKS flange with my HKS SQV adapter ?question, is the stock BOV come with two air holes tubing but the synchronic bov come with three tubing , where is the location to connect ?
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Old 11-25-2008, 05:09 PM   #56
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Further to the installation of the synchronic bov on my 2002 WRX 2.0L, my engine begun to ran off or (stall- i think). I connected port a and b to boost/vacuum source leaving port c unconnected. Besides, i think while opening the bov through a & b, port c need not be connected. Can anyone please suggest me the required installation for my Impreza WRX 2.0 and if the anti-stall valve is required. I also had to re-install my previous HKS bov for normal running.THX!!!!!!!!!!!!!
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Old 12-01-2008, 08:29 PM   #57
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I know this is a thread for their BOV, but someone posted this video some time ago and its good stuff!

The video breaks down how their waste gates work...

http://videos.streetfire.net/video/I...Take_85221.htm

Enjoy

Ian,
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Old 12-04-2008, 12:12 PM   #58
bon1210
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! have a question for install on my 02 wrx TMIC ,is port C ran straight to the boost source? what i mean is between the line between the boost source and the restrictor pill next to the wastegate?

[boost source]---------T--------[wastegate]

(where you want to tee ?)
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Old 12-10-2008, 12:28 AM   #59
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hello ???? any body home ???
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Old 12-11-2008, 04:19 PM   #60
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For port C you have to tee into the boost source before the restrictor pill

boost source-----------tee------pill-----wastegate
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Old 01-04-2009, 08:20 PM   #61
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Any pics of it on a TMIC and recirculating?
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Old 01-08-2009, 11:05 AM   #62
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do you offer a direct way to connect it to a FMIC? Also are there any pics of it recirculating?
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Old 01-13-2009, 12:49 AM   #63
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.........................

Last edited by kihbolo; 01-13-2009 at 09:42 PM. Reason: found my answer
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Old 03-26-2009, 05:57 PM   #64
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I have been using a Synapse Engineering Synchronic BOV for 6 months now, and I am VERY pleased with the results. I replaced a HKS SSQV BOV, and it made a very notable difference in drive-ability as well as not causing compressor surge. I will be buying one for my girlfriends Impreza in the next few weeks. In fact, this is the best BOV I've ever encountered, and will I will be a repeat customer.
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Old 03-27-2009, 07:31 PM   #65
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Quote:
Originally Posted by mike280 View Post
Any pics of it on a TMIC and recirculating?
Don't think it's possible on the older models, just not enough room. Maybe someone has gotten creative and gotten it working, but I didn't see a whole lotta room to route the hose...
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Old 05-03-2009, 08:38 PM   #66
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Thumbs up 2006 STI, built motor. So far, VERY good...

I read the reviews, I watched the vids, and I had a car which was surging BIG time with a TIAL and the supplied 11lb spring (no paint). (Tial ported to atmosphere)

Decel performance was pulsing hard at light throttle on the highway, and there was a drop off of boost as the turbo stalled between shifts. Ugghh. I hated driving it, even though I had over 450whp.

I ordered the Synapse BOV from No Limit Motorsports and got it next day (Thanks!)

I took the advice and ran a 1.25" recirculation hose from the valve back into the inlet just before the turbo (Where my TMIC was discharging).

Much better. Still not perfect.

In looking closely at the lines and setup, I noticed the miniscule brass fittings had such a small orifice in them (around .062"?) I removed them and CAREFULLY drilled them out to .125" (Barely enough room, but I got it. I figured if this setup was all about quick response, then why restrict the flow and delivery of the boost and vacuum passages? Again, a notable change for the better.

I since changed engine setups, going to another tune and Kelford cams. (Over 500whp) The response wasn't quite as good as before. Probably because of the amount of vacuum the stock cams have vs. the aftermarket.

For even faster response (if needed), on the Synapse forum Ryan advised to remove the little preload spring. (It has a larger diameter main spring, too.) So, I did just that. Yup, that made a difference.

It struggled a bit on free-rev and down to idle, so I figured there was now too much vacuum and not enough spring valve pressure to hold it closed. So I ran only one of the two vacuum lines to the outer plenum chamber. That cured it.

Best performance to date. I like that the unit is responsive to the changes and is tuneable to different scenarios.

Comments: I think they should supply larger ID fittings, and the instructions are written poorly. I would have liked a page of notes explaining how the tuning can be performed/affected and the effects you should look for.

Overall I like it a lot. Hope this helps someone. Thanks!

Coop
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Old 05-04-2009, 02:21 PM   #67
STiAlain
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Quote:
Originally Posted by SharpByCoop View Post
I read the reviews, I watched the vids, and I had a car which was surging BIG time with a TIAL and the supplied 11lb spring (no paint). (Tial ported to atmosphere)

Decel performance was pulsing hard at light throttle on the highway, and there was a drop off of boost as the turbo stalled between shifts. Ugghh. I hated driving it, even though I had over 450whp.

I ordered the Synapse BOV from No Limit Motorsports and got it next day (Thanks!)

I took the advice and ran a 1.25" recirculation hose from the valve back into the inlet just before the turbo (Where my TMIC was discharging).

Much better. Still not perfect.

In looking closely at the lines and setup, I noticed the miniscule brass fittings had such a small orifice in them (around .062"?) I removed them and CAREFULLY drilled them out to .125" (Barely enough room, but I got it. I figured if this setup was all about quick response, then why restrict the flow and delivery of the boost and vacuum passages? Again, a notable change for the better.

I since changed engine setups, going to another tune and Kelford cams. (Over 500whp) The response wasn't quite as good as before. Probably because of the amount of vacuum the stock cams have vs. the aftermarket.

For even faster response (if needed), on the Synapse forum Ryan advised to remove the little preload spring. (It has a larger diameter main spring, too.) So, I did just that. Yup, that made a difference.

It struggled a bit on free-rev and down to idle, so I figured there was now too much vacuum and not enough spring valve pressure to hold it closed. So I ran only one of the two vacuum lines to the outer plenum chamber. That cured it.

Best performance to date. I like that the unit is responsive to the changes and is tuneable to different scenarios.

Comments: I think they should supply larger ID fittings, and the instructions are written poorly. I would have liked a page of notes explaining how the tuning can be performed/affected and the effects you should look for.

Overall I like it a lot. Hope this helps someone. Thanks!

Coop
nice write up!
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Old 11-02-2009, 11:25 AM   #68
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Any more info here? Is it a good system or not? Any changes been made to it lately?
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Old 11-02-2009, 01:19 PM   #69
SharpByCoop
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I just went through a major change to my system. New header, turbo (HTA35R) and inlet, and AEM computer. I kept the Synchronic, but have it exiting into atmosphere, not recirculating. (with the AEM ECU I don't have a MAF now, so I can.) I put the small spring back in and tightened it up.

I still love this BOV. Now I can hear it release immediately and it remains smooth.

Coop
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Old 11-02-2009, 02:26 PM   #70
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nice write here

is there anything on the ewg as well
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Old 03-06-2010, 11:39 AM   #71
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When i got my Synapse BOV I got a manual with an insert on how to hook it up to a EWG set up. I've now lost it and i dont see what i remember on the website when i download the manual online.

Can you help email me the correct way to connect the BOV with my EWG and BC?
Chandy70@gmail.com

Thanks,
Chuck
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Old 04-13-2010, 01:17 AM   #72
JamesBernard
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Why would they not make this work with TMIC's?
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Old 04-13-2010, 08:21 AM   #73
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i had to make a block off plate for the flange on the sti tmic and then weld a bung on the passenger side endtank to mount this bov
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Old 04-16-2010, 09:47 PM   #74
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Will the synapse bov work on a turboxs flange?
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Old 04-29-2010, 10:06 PM   #75
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Quote:
Originally Posted by JamesBernard View Post
Why would they not make this work with TMIC's?
There is not enough room for a TMIC with a 2002-2007 WRX / WRX/STI... Just look under your hood and look at the size of the valve...
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