[Trap35i]

Hello all, new to the site, just bought a 2007 E92 335i 6MT got it for a steal 45k miles for 19k! And i'm in love with the Montego Blue
I am not new to BMW's though, i've owned a 1988 e30 for a few years, then moved onto a e46 330ci for a couple years, and now finally in the big boy toys with the 35
I'm about to purchase the BMW Performance exhaust for the new ride since i'm used to having a relatively loud exhaust (ive already done the golf tee and its still not enough in the mids) Also i am still looking for used PE if anyone is interested in selling theirs!

Anyways i just ordered the Synapse BOV with the black charge pipe, as ive always wanted a turbo and now that i have two i really want to hear them

My question (since i am relatively new to forced induction), will the stock psi be enough for that specific BOV to open when it should? I've read on some forums about BOV's not opening due to the wrong spring, etc. but those are always on non-stock cars, usually with a jb+. I'm pretty certain it should be fine, but i just want to be sure, this is my new baby after all! The only mod as of right now is DCI intakes.

Thanks in advance for any help or advice i appreciate it!

[Jozy]

my fav color!

yes the bov will open to release air even on stock boost (~ 7psi)

[Trap35i]

Originally Posted by Jozy

my fav color!

yes the bov will open to release air even on stock boost (~ 7psi)

Awesome thank you! The install looks relatively simple, have you ever done it?

[bigdnno98]

Which CP? The ER fitment is perfect and it's about a 30 minute job. Be careful not to break the tab on the TMAP sensor when pulling the plug off of it. Not sure on other CPs. I have a VRSF one I need to put on when I get a chance.

[Trap35i]

Originally Posted by bigdnno98

Which CP? The ER fitment is perfect and it's about a 30 minute job. Be careful not to break the tab on the TMAP sensor when pulling the plug off of it. Not sure on other CPs. I have a VRSF one I need to put on when I get a chance.

I inserted a link in the original post, but heres a link
http://www.nolimitmotorsport.com/pro...B001A-KIT001BK
I believe its a synapse charge pipe? Or a No limit motorsports CP.

[bigdnno98]

Originally Posted by Trap35i

I inserted a link in the original post, but heres a link
http://www.nolimitmotorsport.com/pro...B001A-KIT001BK
I believe its a synapse charge pipe? Or a No limit motorsports CP.

Interesting. I won't run one without the factory c clip again. I've never seen that one.

[Trap35i]

What clip are you referring to? Did you have one blow off on you?
And it is a relatively new kit; Synapse themselves are putting together, and its at a great price too! I am running stock boost so i wasnt too concerned with what it can handle, i just wanted quality and the best sound. The HKS and other BOV's are too high pitch and almost sound like they "whistle" rather than "PSSSH" for my taste.

[Trap35i]

So i went ahead and purchased the BOV and found a local forum member to sell me a genuine PE, i will update once i have them installed! Cant wait to hear how that exhaust/bov combo sounds!

[bigdnno98]

Originally Posted by Trap35i

What clip are you referring to? Did you have one blow off on you?
And it is a relatively new kit; Synapse themselves are putting together, and its at a great price too! I am running stock boost so i wasnt too concerned with what it can handle, i just wanted quality and the best sound. The HKS and other BOV's are too high pitch and almost sound like they "whistle" rather than "PSSSH" for my taste.

Yup, I had an Ageny Power CP/BOV. It has a coupler that goes over the throttle body and a tbolt clamp. It popped off numerous times once I was over 18psi. I sold it immediately. I'll never go back to a coupler on the TB.

[Jozy]

so you're modding sound mods first? dci, bov, exhaust haha.
power mods soon?

nah i've not installed a CP on my car. the older N54s have stronger CPs.

installation is quite straight forward, remove stock, sensor off. sensor on the new cp, bov on cp, cp in, silicone hoses on, tighten, pressure hose onto bov, done... i think :P

[Trap35i]

Yes i also got a jb+ coming in. I dont want to wear the car down too fast, no type of 18psi for this cowboy! but i do plan on running the jb+ at default or maybe 75% i was hesitent to get it in the first place but those numbers looked too tempting!

[Jeff@TopGearSolutions]

Originally Posted by Trap35i

Yes i also got a jb+ coming in. I dont want to wear the car down too fast, no type of 18psi for this cowboy! but i do plan on running the jb+ at default or maybe 75% i was hesitent to get it in the first place but those numbers looked too tempting!

I'd sooner recommend a full tune at consevertive boost. At least a real tune will actually tune fuel and ignition timing.

Where as a JB+ is just a boost controller, blindly adding boost with no direct tuning otherwise.

The boost of 18 PSI is really a non issue with the proper tuning. The engine itself is more then capable of handling it when properly tuned.

[Trap35i]

Originally Posted by Jeff@TopGearSolutions

I'd sooner recommend a full tune at consevertive boost. At least a real tune will actually tune fuel and ignition timing.

Where as a JB+ is just a boost controller, blindly adding boost with no direct tuning otherwise.

The boost of 18 PSI is really a non issue with the proper tuning. The engine itself is more then capable of handling it when properly tuned.

I was under the assumption that the DME will adjust based on the boost adjustment? And I know with a proper tune additional boost won't kill the car, but there's no denying with stock turbos & internals the cars life will for sure be diminished in the long run @ 18psi. I plan on keeping the car for a while and I don't want to lower the longevity of the engine or turbos.

[Jozy]

you don't have to jmp to 18psi immediately.... MHD stage 1 is around 13? psi

[YoungBlood]

And even stage 1 is amazing but subbed to her this combo! I have "PE mod" exhaust, so I'm interested to hear it all together

[Jeff@TopGearSolutions]

Originally Posted by Trap35i

I was under the assumption that the DME will adjust based on the boost adjustment? And I know with a proper tune additional boost won't kill the car, but there's no denying with stock turbos & internals the cars life will for sure be diminished in the long run @ 18psi. I plan on keeping the car for a while and I don't want to lower the longevity of the engine or turbos.

DME and adjustment is a loose marketing way for t00ners to say they hope the ECU takes care of the car enough.

The JB+ tricks the car to add a few PSI. The car still thinks it's running stock boost but it's actually scaled. No other changes will be made to fuel or ignition directly by the JB+.

The car will pull timing for knock and then it will try to re-add ignition slowly until it knocks again. As far as fuel, it will stay within tolerances of stock boost fuel.

I'm not trying to scare you, well maybe I am a little but I'm just saying if you think a JB+ is the correct conservative way to tune, it's not.

You are much better off with a real flash tune, that controls fuel and ignition timing. Stage 1 tunes are plenty conservative on this platform.

This platform has proven more and more that 18 PSI or more (Mid Range) is perfectly within the tolerances of not only the turbo's but the engine. We got guys with 800HP on stock motors. After 6000 RPM on stock turbo's these guys only make ~13 PSI give or take a few depending on the mods and actually tune/map.

At any rate, give the JB+ a shot if you want. It's a decent bump in power for the money.

[gabylonfive]

i just sold my synapse CP and BOV, worked great while I had it using both stock and stg 2 maps. No adjustments needed out of the box.

[Trap35i]

Originally Posted by Jozy

my fav color!

yes the bov will open to release air even on stock boost (~ 7psi)

Originally Posted by bigdnno98

Which CP? The ER fitment is perfect and it's about a 30 minute job. Be careful not to break the tab on the TMAP sensor when pulling the plug off of it. Not sure on other CPs. I have a VRSF one I need to put on when I get a chance.

Originally Posted by Jeff@TopGearSolutions

DME and adjustment is a loose marketing way for t00ners to say they hope the ECU takes care of the car enough.

The JB+ tricks the car to add a few PSI. The car still thinks it's running stock boost but it's actually scaled. No other changes will be made to fuel or ignition directly by the JB+.

The car will pull timing for knock and then it will try to re-add ignition slowly until it knocks again. As far as fuel, it will stay within tolerances of stock boost fuel.

I'm not trying to scare you, well maybe I am a little but I'm just saying if you think a JB+ is the correct conservative way to tune, it's not.

You are much better off with a real flash tune, that controls fuel and ignition timing. Stage 1 tunes are plenty conservative on this platform.

This platform has proven more and more that 18 PSI or more (Mid Range) is perfectly within the tolerances of not only the turbo's but the engine. We got guys with 800HP on stock motors. After 6000 RPM on stock turbo's these guys only make ~13 PSI give or take a few depending on the mods and actually tune/map.

At any rate, give the JB+ a shot if you want. It's a decent bump in power for the money.

Interesting, im not sure why so many people would think that the DME is enough then. I already have it coming so i will probably put it on, see how i like it, and if i decide to keep the car "tuned", i will just order a JB4 or get the ecu flashed, with a conservative low boost tune.

[kisarci]

Hey no limit motorsports, I've brought my car into that place last year~
ok thats all i wanted to say lol

[JValenzSD]

OP, I'm running the Synapse CP and BOV setup ever since I was stock and then held boost nicely to my current high boost setup. It's a pull type BOV that relies on vacuum to release boost. Different design than the push type models that rely on a spring. I have experience no leaks or anything popping off. Just make sure you have the high quality t-bolt clamps and everything torqued down correctly.

It can hold well over 100+psi as per Synapse's website and it sounds badass when I release the throttle under heavy acceleration. Even more so when I release 24+psi of boost. (http://www.synapseengineering.com/v4/sb/)

[csu87]

As mentioned above, the Synapse works differently than the spring type BOV so the boost levels wont be an issue with it.

As for the coupler vs c-clip argument, Ive been running a coupler for a long time with boost levels in the 20-21psi range with no issue. Just make sure you have it tightened down and it wont pop off.

[Trap35i]

So I returned the JB+ and got a Cobb AP v3 and loaded the stage 1 sport map, and wow this thing is a completely different beast. With the PE it sounds orgasmic, makes the loudest pop/explosion out the back near redline. Still waiting on Synapse to ship my damn BOV kit tho -.-