Stock BOV usage

[stumpz]

hey, i was just wondering if there was any way i could use the stock BOV on an aftermarket hotpipe for a front mount? If so could somebody help me out a lil bit maybe?

[quiksilvia]

for a front mount...like if u get a fmic, can u use the stock bov still? u could prolly make it work, but why not just upgrade?

[stumpz]

yeah, i have a front mount now . the reason i can't upgrade is cuz i ran out of money..waitin on my next paycheck. i just want to drive it :P

[ride4lame]

you can drive it without a BOV at all. Just don't do it forever. You can safely drive with no BOV for a week untill you get you next paycheck.

[stumpz]

aiight thanks a lot man! i've heard arguments on both sides of the spectrum (vented vs. recirculated) i gotta choose..

[quiksilvia]

do u want the sound, or do u want no bogging at shifts

[stumpz]

performance, that's y i'm leading to more of the recirculating side

[quiksilvia]

problem solved

[Wuss]

stock unit is not a bov. As mentioned , it's a recirculation valve. It is not the same thing.

On a closed loop system, the only reason to get a BOV is if you want a sound. There is not 1 mechanical reason as to why you should get a BOV over a DV ( diverter valve, sorry, thats what we call them from the VW 1.8t world =P ). The only way I can think of to go BOV without being detrimental is if you could fool your MAF, maybe standalone?

[S13240]

I have no clue why you guys keep mentioning about atmospheric bovs when some of the sr guys don't have any idle problems or whatever. I just got my bov finally, after a long wait and I certainly don't have any issues. Idles fine

[quiksilvia]

i can idle fine, but recirc is better for perfromance, atmos is just for the noise

[ride4lame]

mine idles like crap. At first it idles fine and i thought it was great. then the ecu teaches itself stuff and it drops to like 400 off high revs

[IvoryJ30t]

its not going to affect your idle [usually], its going to make your car run extremely rich the moment you let off the gas, and the valve dumps.

[quiksilvia]

does the ecu really learn and adjust to minor things? cuz my timing was lil off like 10 days ago and now its fine

[stumpz]

my timing is back off, and it's pissing me off. i know about the TDC at #1 and stuff and i know that the timing marks on the pullies have to be at about 10 and 2, but i've heard somehting about the silver chain link as well..but i donno if it plays a certain significance. if some1 can..help me out a little bit w/ this

[Titan]

Would it not be possible to relocate the MAF beyond the BOV... as in at the end of the hot pipe?

This would compensate for the air being blown off... but would the turbulance/heat of the charged air have detrimental effects on the BOV?

[SpeedRacer1]

my timing is back off, and it's pissing me off. i know about the TDC at #1 and stuff and i know that the timing marks on the pullies have to be at about 10 and 2, but i've heard somehting about the silver chain link as well..but i donno if it plays a certain significance. if some1 can..help me out a little bit w/ this

That is mechanical timing and isnt the timing you should be concerned with. The ignition timing from the CAS is the important timing. If the mechanical timing is off, you will have bigger problems. There are 3 links on the timing chain painted different colors than the rest. One gold and two silver. The gold link lines up with the crank mating mark, and the two silver line up with the two cam sprocket mating marks.

Would it not be possible to relocate the MAF beyond the BOV... as in at the end of the hot pipe?

This would compensate for the air being blown off... but would the turbulance/heat of the charged air have detrimental effects on the BOV?

Its called a blow through MAFS and it works.

[ride4lame]

how do you setup a blow through MAFS? i have been wondering for a while and no one really answers this question.

[SpeedRacer1]

Cut the cold pipe or hot pipe and reposition the MAFS closer to the throttle body than the BOV. Not really rocket science.

[stumpz]

hrmm i didn't know you could have the mafs whereever there's air..i thought it had to be on the turbo inlet shizzle...learn somethin everyday :P

[Onizuka]

how do you setup a blow through MAFS? i have been wondering for a while and no one really answers this question.

ill show you when my car is finished

there are no performance benifits to a re-circ, if you think of it it may even be detrimental, after the air is presurized it becomes hot, and then your feeding it through the turbo(air heater ) again. even if the re-circ BOV is mounted on the cold pipe, the air is still hotter than the ambient air temprature outside of the car.

[Onizuka]

here is my super awsome diagram explaning it:

[stumpz]

teh funneh

[SpeedRacer1]

The recirc is mounted at the bottom of the stock intercooler...

[stumpz]

hey, i don't want to be repetitive but..i was searching i found a thread where they told the guy to upgrade and purchase a new bov since he had a fmic..well i have a fmic and i was wondering if there was any way possible that i could hook up the stock bypass valve? i'm kind of tight on money and want to purchase a nice bov, but haven't quite decided on which recirc i wish to purchase.. if you can show me some pictures of somebody riggin the stock to work w/ a fmic or tell me i'd greatly appreciate it. i'd also like to thank the peeps who i've been bugging for the past few weeks trying to get things straight (quiksilvia) :P. my motor is running, car is moving, but i have a coolant leak..i have a pic of it if ne1 can think of a dif way to fix it.. wut i'm thinking is just try to move the hose and the clamp a little more towards the passenger side. if not maybe super blue 2 will seal that ish? also, this is a dumb question, but looking at the picture..wut does the u-bend w/ the red line coming from transmission connect to? nothing is coming out of it or nething..

[S13240]

That red/pinkish hose that is connected to the transmission is for your gear oil. It just lets out excess oil and crap like that I guess.

But you can use the stock bypass valve with your fmic by welding on a small peice of pipe on your ic piping. If you haven't seen the stock smic how the stock bypass valve is mounted on there, it is mounted by a hose. So what you would want to do is the same basic concept on a fmic and weld a small pipe on the piping just so you can slide the stock bypass valve hose over it and tighten it down with clamps. Voila...you've got the stock bypass valve.

[stumpz]

aiight thanx a lot dawg!

[stumpz]

Yo, can u tell me where i can run a line from the ignition coil or if there is a previous line, because i cannot get my tach to work at all :/. yes it's one of the ricey tachs, but i figure it'll do until i purchase a new cluster. thx!

[Nismo1182]

I had a lot of problems with my stock sr DV on my ca. I was using a SR intercooler with the DV still on it and vented to atmosphere. The car didnt have a single problem after the excess air was let out but it did have a problem under normal driving conditions.

The DV leaked air under cruising conditions, like if I wanted to stay at a constant speed, say 50 mph. The car would "stutter". Then I would either have to let off the gas completely or give it more gas for the problem to go away.

One day I decided to remove the valve completely and all my drivability problems were cured.

The valve also doesnt like it when you run high boost as it leaks even more.

[sxse]

I Ran out of cash so I couldnt get a aftermarket not pipe but I do have a FMIC. I just JB welded my stock recirculating valve onder my stock HP and ther is just a short 5 in. of hose conecting it to my intake. It works great.

And J-spec, Recirculating is better for performance, have you ever felt how much air comes bustin out of the BOV even with no load on the engine (idle) a can't believe the shooting of that air into your turbo and keeping that press. cant help spooling and overall power to some extent...