Not Recirculating Bov

[konjiki7]

Where can you get said bungs? I need to get one for my hotpipe to use a boost source for my waste gate also, but id like to be able to find 16mm/ 5/8" bungs as well.

I'm pretty sure frsport should have them.

@ kouki munster

Nice setup that's basically the same thing i have. I just have an ichiba mani, gt2871r .64 and tiny 36lb injectors

[OM3GA]

Frsport does not have them

[TroubleBound]

So while im in here with all these people that actually know s*** about cars...i'm trying to hook my cheap pos BOV up (it came with the ebay fmic w/the flange already welded on..)(its purple ) And i was just wondering where #3 connects, as i have #1 hosed to the top left nip of the throttle body, and will recirculate #2 to the hole on the stock intake between the maf and the turbo. What did you guys use for the recirc hose btw cause autozone's hoses were too small..?

/threadjack

[MrSoutherland]

Om3gaJust bring it to a welding shop. Had them weld a bung on my intake pipe for 10 bux...+1 Recirc! No pshht sound so everyone knows you have a turbo under the hood. Unless of course you want them to know

[J14cm7]

You would be better off recirculating it, the main reason being it will be eaiser to add a bung between the turbo and maf and run a hose from the bov to said bung. Otherwise your going to have to cut the charge pipes, plug the hole for the bov,(if its in the same general area as mine) and have the bov flang moved.

My BOV is hot side sorry if i said opposite earlier. Yea i think ill just run tube from my BOV to my intake pipe after the MAF. I was gonna get the weld shop to fab me up an intake pipe anyway. I still have the crappy stock plastic intake pipe that came with my sr.

[spolitte]

Om3gaJust bring it to a welding shop. Had them weld a bung on my intake pipe for 10 bux...+1 Recirc! No pshht sound so everyone knows you have a turbo under the hood. Unless of course you want them to know

+1 on the machine or welding shop for a bung, they will make you one for cheap and weld it on to boot.

As for not being able to tell if you have a turbo under the hood because you recirc and have no pshht, two things. First, if you have a FMIC doesn't that give it away pretty quickly unless the guy with the mustang says, "thats a shiney looking radiator you got up there, but why are the coolant tubes so big and made of metal?" and two, even with no pshht sound I find it pretty easy to tell turbo vs n/a by the whoosh/whistlin sound it kinda makes while its spinning, maybe thats just me tho.

[kouki munster]

Thats a greddy knock off bov, so in theory it should function just like the real thing, so maybe try and find a manual for a greddy bov, but I think(I'm not 100% sure on this so don't quote me) that the lower port is to help improve the response on the bov on cars running lower pressures, but you should be able to leave it open with out any problems.

[TheRealNap0le0n]

the "option" part is legit. ill give you that. recirc'ed is viable. i dont prefer it. ill spend that $200 on gaskets/etc.

i LOVE surge noises

im glad to see youre starting to see my sarcasms and can roll with em. too many people on here get butthurt.

IF i were to run a BOV, id DEFINITELY run recirc'ed from the hot pipe. but for what my car is for and my personal preference, ill be running no BOV

[S14toRPS13]

Where can you get said bungs? I need to get one for my hotpipe to use a boost source for my waste gate also, but id like to be able to find 16mm/ 5/8" bungs as well.

Have you looked at this?

http://www.frsport.com/Turbo-Q....html

[mrgreeneyes]

KoukiM, thats a killer setup you have there.

i plan on both intake and exh manis staying stock. id LOVE to extrude hone but i cannot justify the cost/gain ratio on that one. i 100% understand the benefits of such work, but the money can be better spent somewhere else.

napoleon, fix your pic. i wanna see what you posted!

omega, you learning something here dude?

this thread actually turned out interesting. and its been mostly civil. a rarity in this place.

[OM3GA]

Have you looked at this?

http://www.frsport.com/Turbo-Q....html

Yeah i saw that, i dont want to do it that way though, i want to do it a more permanent way. Its definitely an awesome thing for a quick boost source tap though!

KoukiM, thats a killer setup you have there.

i plan on both intake and exh manis staying stock. id LOVE to extrude hone but i cannot justify the cost/gain ratio on that one. i 100% understand the benefits of such work, but the money can be better spent somewhere else.

napoleon, fix your pic. i wanna see what you posted!

omega, you learning something here dude?

this thread actually turned out interesting. and its been mostly civil. a rarity in this place.

Yeah, this thread is definitely good. I research about 4-6 hours a day. Ive been doing research 2 years before i even bought my S chassis which was 7 years ago now. However it is still confusing to understand something simple especially when you expect it to be more complex. That is where the stupid threads come from

Anyways i feel the exact same was as what youve said here "id LOVE to extrude hone but i cannot justify the cost/gain ratio on that one."

I'm going to be buying the Tomei Ex. mani and ive already picked up a greddy intake mani. I want to post my build thread really really badly but i am just so lazy and its going to be very long. I need to find all my pictures because thats what everyone wants to see

/threadjack

About that Bov, it got me thinking maybe you hook one end up to Vacuum and the other to a strictly boost source. That would be extremely stupid but maybe thats how it works...

[spolitte]

KoukiM, thats a killer setup you have there.

Agreed. Thats one really clean looking engine bay. For goodness sakes, even the fuse box cover is nicely cleaned and polished up. Let alone your manifold, wires, boost pipes, vacuum tubes, etc. etc. I only hope I can get my engine bay looking that clean one day.

napoleon, fix your pic. i wanna see what you posted!

The pic is working over here, and I must say it is quite rediculous lol.

[zerepdivad]

Well how big is the wing on the car will determine if the bov has to be recirculated or not.

[OM3GA]

I definitely see the pic as well lol.

I agree on Kouki's engine bay being clean, Heres a teaserish pic of what my engine bay looks like RIGHT now.

And if you have not seen my old KA engine bay.



I really need to get my build thread s*** together

Well how big is the wing on the car will determine if the bov has to be recirculated or not.

My car will end up with an Origin GT CF wing higher than the roof at some point, which i believe User 'Johny5' has on his coupe. However, my bov will end up being recirculated but i do get your point haha.

I think you mean how large and plasticated the wing is such as this intense racer device.


Modified by OM3GA at 1:32 AM 12/30/2009

[spolitte]

Yeah, isn't the law that if you don't have at least 6" of clearance from trunk lid to bottom of wing, then you cannot run BoV vented to atmosphere?

On another note, all these clean engine bays make me want to shoot myself Or at least clean up my own I guess. God I hate details...

Oh, and very nice Omega

[OM3GA]

Yeah, isn't the law that if you don't have at least 6" of clearance from trunk lid to bottom of wing, then you cannot run BoV vented to atmosphere?

On another note, all these clean engine bays make me want to shoot myself Or at least clean up my own I guess. God I hate details...

Oh, and very nice Omega

Haha at the law.

Haha clean engine bays take time man, ive been working on my SR one for 6 months now. Going from that KA engine bay to a different platform made me just start ripping things apart off the bat. All wiring was brand new and ive been making small brackets and things my goal is to have it very very clean and organized. Details details details...

That KA setup took some time so i figured id put at least that amount of time into this SR setup im doing now. The KA lived its life and did its job but i will always love that setup.

[pauliedrft]

ok she needs to be re polished but heres my s13.4 peak boost top mount ceramic coated t3t4 50trim stage 3 .running 11psi on stock injectors@ max out maf at 12 psi .eeeh but im thinking of running mine bov on hot side right before throttle body and recirclutaing it in to the turbo

[OM3GA]

Sweet setup There is definitely good time in metal polishing going on right there!

[Jadesr20det]

Ive run atmospheric for Over 7yrs (on cold side) and turbo hasnt died and my car doesnt stall either. Personal experience just saying

[louiswun]

I bet most people here saying they are using vent to air type bov does not creating a stall problem, the are not using Z32 AFM(or any other big AFM) + hi flow injectors + big turbo.Using a bov, recirculating type or vent to air type, the aim is to let the compressed air release and keep the turbo shaft free spinning.If the bov is vent to air type, the spinning turbo shaft keeps sucking air via the AFM, the ECU sense it and make injection, but the air is not going into the cylinder, thus it goes too rich and stall. The bigger compressor, the more air it sucks and vent, the more injection ECU will do, more prone to stall. If the bov is recirculating, the spinning turbo shaft still sucking and pushing the air, but the air only running inside the pipe, no extra air going via the AFM, thus no extra injection made and the AFR keeps stable.If the recirculatuing pipe too close to the AFM, it still make a problem of reverberation, still easy to stall !

[Jadesr20det]

^^???????^^

[homeslicej2]

I understood what he typed, but the guy is from Hong Kong, so I'm guessing English isn't his primary langauge.

[Jadesr20det]

Cliffnotes for entire thread: MAF setups suck

[kouki munster]

I must have been one of the lucky ones with a z32 maf and a larger turbo, because my car never even tried to stall when I was running the stock ecu.

Thanks for the compliments guys, I love the current setup, but I honstly havn't gone out of the way to clean my engine bay. I just got lucky an got a fairly un-molested car, with only the usual p/s leak.

[brn-n-jpn]

lol at this thread... the lancaster crew talks about this a lot. BUT not running a bov is almost th same as not recirculating, if your car has the proper(i.e. gt3071 ) and your car is propely tuned it does not matter. it will just be personal preference then.But for those of us who like bovs and do not recirc HKS SSQV and tial are the way to go. they are made for quick shifting and do notlag open like some other ones like GreddyKeegan and Doug BOV FTW

[kouki munster]

I personaly prefer the synapse, as it actuates much quicker then the hks. (don't know much about the tial) I'm sure most of you guys have seen the vids on youtube of the synaps, but they are known to pop off if you don't strap it to the charge pipe.(note the zip tie around the bov in the pic I posted)

[homeslicej2]

Cliffnotes for entire thread: MAF setups suck

[S14toRPS13]

Properly tuned engine or not. All bov's I've seen vented to the atmosphere has that same problem on SR's with a MAF. Either stuttering between shifts or not completely opening up under light driving(causing a little surge)and only opening up at higher boost levels. HKS, Tial, Blitz, Greddy, all of them I've seen and has the same issue.

[kouki munster]

Even the synapse will surger a little under very lite driving, but it is noticeably less in my experience with the hks. The only time I notice any surge is under very lite conditions in between shifts when I slowly roll out out of the throttle, or when I don't fully roll out of the throttle.

[S14toRPS13]

I appreciate that. That just reaassures me that all the people talking like they don't deal with compressor surge or a little stalling in between shifts are just talking out their @sses. I've played around with the spring on my bov for days and couldn't get rid of the surge or the stalling. That's why I just decided to go the recirc route.