I actually like the synapse line of DV/BOV's as well. I'm not going to claim to have tested every single bov on the market, however I have tested quite a few on my personal car and on quite a few others vehicles as well. The 2 that are at the top of my list are Tial and Synapse. I personally like the synapse valves a tad more mainly due to the fact that, unlike Tial, they're adjustable, can be easily converted to recirc, and the DV unit can be used as either a push or pull configurations which makes it VERY versatile and tunable.

 

Okay new question since you brought up the synapse. I'm looking at there new diverted valve. It can be recirculating or vta. I have heard the sound of it both vta and recirculating and I like it. (sound is a important because that's why I'm changing) so if I get this use a block off plate and have it recirculating do I h Ave to tune for it or move the maf?

 

Buy the fullsize one.


Yes you will want to tune some.
No the MAF can stay in the intake but the recir needs to be a bit behind the MAF (closer to the turbo)

 

Here are some new pics and a couple video of the car. Can also go to the official rally yellow thread to see some as well. I couldn't get the videos to work. You visit my photobucket and watch em. Cptn2469 user name.

 

What's the difference between the full size and little one? I didn't notice there were more than one.

 

http://www.synapseengineering.com/v4/sb/

Built to be both a BOV and DV.
Easy to rebuild and you just buy the parts you need for your application.
No springs to change. Just works.

 

The DV is the same thing? Just only tested to 60 psi instead of 100 psi? Also the DV is 214 with everything needed to be recirculating or vta. The bov is quite a bit more. Is there a real benefit with going with the full bov vs the DV?

 

The DV isnt built to VTA. It has a slower response time as well.

 

Synchronic Diverter Valve is the first compact DV/BOV/BPV that uses the patented Synchronic actuator technology. So that's a quote from their site. It says it's a DV. Bov. And a bpv. So im assuming it does VTA. But i emailed them to find out. I prefer the DV for the smaller size/weight. Looks like it should allow me to put in a spot that is "hidden" so I can look stock still. The bov looks bulky. And I prefer the sound of the DV over the bov. But i want the vta feature so we will see what their response is.

 

you wont be hiding any blow off valves anywhere. the stock turbo sits up to high to put it anywhere some what concealed.

can you spot mine? on my old car

 

I don't see it no. And the DV is 1/3 the size of the synapse bov. Maybe I can put low on the charge pipes. If not its whatever. But it's a good hope lol

 

the ideal place is closer to the turbo. usually we mount them where the zzp logo is roughly. mines hidden down low by the turbo but I don't have a stock turbo setup so it was easy to do. With the stock turbo it sits up so high you will see it no mater what.

 

Gotcha. When you say ideal is there a reason why by the turbo is better?

 

Sorry man. This is absolutely 100% false.

I in fact run the synapse dv on my car and quite honestly love it. It's one of the best vta valves I've used and tested over the years on any turbo car I've owned. There are of course other valves available that are larger and can vent more, but the dv valve and the standard synapse bov vent the EXACT same size discharge capability. Either one is PLENTY sufficient for the stock turbo. The valving is pretty much identical between the 2 with a few slight differences. One of the biggest being that you can configure the dv as either a pull OR push style depending on your setup and needs. Regardless off how it's configured, it doesn't change it's capability.

 

Thats what I thought! Awesome. That's what I'll be getting. And I'll post phone the lower charge pipes as i don't need to relocate the maf. Should I still do the IC? I plan on track time so would it be beneficial? Or is the stock one plenty efficient for stock turbo at 25psi ish.

 

Simplest way to remember it is basically this. Closer to the turbo, in theory, protects the turbo better by venting virtually all the pressurized air out of the system before it can back up into the compressor wheel. Closer to the tb, in theory, simply increases response time. Depending on who you ask, is what response you will get for which is better. I sort of lean more toward the side of Omiotek with this one though.

 

The stock ic is actually quite efficient with the stock turbo, even at 25psi. The zzp ic, however, will in fact recover slightly quicker after long pulls, but the biggest benefit is the simple fact that you're getting rid of the junky plastic end tanks that are notorious for cracking and blowing out. The overall difference in peak IAT2 temps between stock and any of the aftermarket IC's out there for our cars is quite honestly minimal though. It's the recovery time that is more noticeable.

 

Okay sounds good. And thanks for explaining the bov theory. That makes sense. I'll probably end up getting the IC as well still. Just keep stock lower charge pipes.

 

You should throw my bell core intercooler in there if you want to see some good iat numbers..... It's one off I did for myself. Our other design works fine and honestly works the best as I have seen but I can ways find ways to improve. After about 20 pulls and some tuning I wanted to see this thing in action. 60 degrees put when I did the testing. Hot side 173 and the cold side was at 62 needless to say it works. I also run some aerospace thermal extraction coating.

 

Adnd what does that bellcore cost? Lol

 

Our normal intercooler costs more then the zzp when it's said and built. The bell core alone is expensive and just the materials are more then the zzp. We have fabricated endtanks which take a lot of time to make but they are lighter and have a good design.

If you want pricing you have to pm me as I cannot discuss it openly since we aren't a vendor. I don't have an exact price for the bell core because it was intended as a one off but I could make another

 

Yeah i think I'll pass lol. The zzp is already 350. Lol. And seeing as its not a full blown race car it's cool haha. Thanks though.

So im about to place my order. Final opinions?

High flow cat zzp.
HPT W tune from zzp. (they will do some data logs for me as well for free to customize it a little more)
Synapse DV in recirculating mode.
ZZP IC. (Stock lower charge pipes.)
Twin scan gauges.

Pretty sure that's it. Ordering all from zzp except the bov. What do you guys think?

 

350 for an intercooler is cheap.

 

Yes, after my stint in the DSM era, that is very cheap.

 

just placed my order.
zzp IC
HPT and tune
high flow cat
synapse DV with AI flange,
dual aeroforce setup
black ss faces
ordered some custom floor mats, back with yellow stitching on the edge, yellow "SS" on the mat as well
the black stripes people put on the front fender as well.
the mtx shorty antenna


hoping i can take a weekend and leave base to go home and get all this installed haha, if not i graduate training march 12th so ill install it a few days later, im looking into some cool custom stereo ideas which will be next, along with the viper alarm with auto start. tinted windows.



thanks for all the help really helped me make my final decisions, and im glad i ended up going with a bov that could be VTA or recirculating. so i can choose to go VTA after i hear how it sounds recirculated. if its not what i want i can add on to it and make it what i want. thanks