Synapse Hybrid Bov Review

[staples187]

I've posted these pics in another thread, but here is what the recirc tube looks like when attempting to install the HKS bolt on with the COBB SRI. The hoses were much too restricted due to kinking in my opinion no matter how I rotated the stock hose. You could see it pulling on the intake. I think you'd need to look for another piece of hose with a descent bend to it in order to get underneath the intake with this particular combo.

Have you tried rotating your recirc tube? That's what I had to do with my Turbosmart. I'm weary with this set up because I don't want to cut my recirc tube and be screwed because it rubs on the cold air intake or any intake for that matter.

 

[PLM_Man]

Have you tried rotating your recirc tube? That's what I had to do with my Turbosmart. I'm weary with this set up because I don't want to cut my recirc tube and be screwed because it rubs on the cold air intake or any intake for that matter.

"no matter how I rotated the stock hose." I made sure I said that because I knew a reply was coming . I rotated it every-which way, but no luck. The intake charge hose from the COBB is just too close to the recirc outlet of the HKS at the mounting angle (to avoid hood clearance issues). Based on others experiences and pictures that I've found, the MS CAI and HKS SSQV fit together, and the install instructions for the HKS show it fitting with the stock box, so I assume that works too. The two hoses just collide, and the pics really look like an understatement. Try to picture (in your head) wrapping a recirc hose around the COBB hose. It basically flattened out the recirc hose completely. [/OFF TOPIC]

 

[AutoXRacer]

Have you tried ordering a universal recirculation kit? I know the local tuning shop sells them (Titan Motorsports) for both specific applications and universal ones... I was thinking about doing this with my HKS SSQV. I' anal and I like my installs perfect...the stock hose does not have the ideal bent and length...but it works.

I'm still looking for a solution/better fit.

 

[daonly1around]

i might go with the HKS and the cobb, and see what kinda hose i can find that will fit better

 

[BDL]

So whats the latest on this? Has anyone else installed this BOV? Impressions?

 

[montrealms3]

Mine should be arriving today, but I am not going to install it until the last week of April as I want to do some before and after dyno's . . . they should prove that it doesn't give any extra max hp but it may give us more boost in certain spots in the rev range (as per statements made by current owners of the synaps bpv), thus making the car faster . . . if it doesn't . . . oh well, at least I'll have a freaky looking BPV.

 

[dread]

I am having trouble understanding what the extra hoses are for. Will I be able to go back to stock after installing this and where the **** is the third hose going.

 

[hilmar2k]

I am having trouble understanding what the extra hoses are for. Will I be able to go back to stock after installing this and where the **** is the third hose going.

There are three nipples on the Synapse BOV. Two of them get fed by the boost/vacuum line that goes to the stock BPV (it just needs to be split with a "T"). The third is a high boost line that can be T'eed off the line from the wastegate. It should be pretty easy to go back to stock.

 

[dread]

So I need to splice two of the stock lines? Does the kit come with the t-hoses or do I need to do this myself? And do I need to cut the stock lines.

 

[BDL]

Doesn't look like it....

http://video.google.com/videoplay?d...l=3&start=0&num=10&so=0&type=search&plindex=1

 

[dread]

So all I need to do is split the boost vaccuum line somehow and attach the recirc hose?

 

[hilmar2k]

So I need to splice two of the stock lines? Does the kit come with the t-hoses or do I need to do this myself? And do I need to cut the stock lines.

You don't need to splice into the vacuum/boost line that goes to the stock BPV, just add a T to the end. If you go back to stock, just remove the T and plug it back into the stock BPV. You do need to splice the high boost line from the wastegate. To go back to stock, you would need to splice it back together or replace the line.

So all I need to do is split the boost vaccuum line somehow and attach the recirc hose?

....and connect the high boost to the line from the wastegate.

 

[dread]

where am I supposed to get a T connector? I would like to see a walk through on this.

 

[hilmar2k]

where am I supposed to get a T connector? I would like to see a walk through on this.

I am not sure. I would guess that an auto parts store or Home Depot would have them.

 

[nypest]

Best place to get them is a NAPA or a local Speed Shop..... I tried HD and such and found nothing.. The size your looking for is just smaller then 1/4" ...1/4" worked for me but its a little tough getting the WGA hose on the 1/4" T end (used a little soap to help) also another little tip is to remove the WG hose all together and do the T fitting outside the car(rather then srtuggle slipping it on back there) MUCH more room it will save time trust me..

 

[sleeper3]

Mine should be arriving today, but I am not going to install it until the last week of April as I want to do some before and after dyno's . . . they should prove that it doesn't give any extra max hp but it may give us more boost in certain spots in the rev range (as per statements made by current owners of the synaps bpv), thus making the car faster . . . if it doesn't . . . oh well, at least I'll have a freaky looking BPV.

I saw a youtube vid saying that a stock car got well over 20 hp from this. that's max hp. it makes no sense to me whatsoever unless the valve you're replacing was leaking like crazy.

 

[montrealms3]

I saw a youtube vid saying that a stock car got well over 20 hp from this. that's max hp. it makes no sense to me whatsoever unless the valve you're replacing was leaking like crazy.

Yeah, I'm not expecting gains like that at all . . . but I am interested to see what, if anything, changes when I put it on. I will do some dashhawk logs with the old valve and some with the synapse and let you guys know the results.

Truthfully, I expect no difference . . . I got the valve because I wanted something solid that would work . . . if I see positive results, I will be happy . . .

 

[sleeper3]

I'm pretty happy with my forge.

 

[nypest]

there is a definate increase in response over the forge (i liked the forge as well nice and small and good performance)

 

[hilmar2k]

Yeah, I'm not expecting gains like that at all . . . but I am interested to see what, if anything, changes when I put it on. I will do some dashhawk logs with the old valve and some with the synapse and let you guys know the results.

Truthfully, I expect no difference . . . I got the valve because I wanted something solid that would work . . . if I see positive results, I will be happy . . .

That's my goal, too. I don't expect big gains, but the plastic stock BPV has got to go.