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Any thoughts on a way to re circulate this.

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2gGst98

10+ Year Contributor
702
58
Oct 3, 2010
Concord, North Carolina
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So I finally got my rebuilt head on, went to mock up my front mount and came across this. A rubber hose bends to a kink, and I can't seem to find a S bend hose. I was going to cut it and reverse that pipe on the intake and re weld it But my dremel won't cut through it :ohdamn: so my next thought was to make an adapter for my BOV to sit sideways on the pipe. :hmm

Will get it running this weekend

Any thoughts would be helpful :thumb:

O and what do you guys think. Not quite done but I'm trying to be clean looking.

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Looks similar to my setup. I used a radiator hose. had to bend a wire as a model of how I needed it to bend around and went to Autozone. Told the guy what I was trying to do & they let me behind the counter into their radiator hose stock and let me rummage through everything till I found one that fit my needs. I ended up having to take a section out of the middle of a really long hose but it fit like it was made specifically for it.
 
I used some plastic flexable hose from ace hardware and just used some hose clamps to secure it. It worked pretty good it didn't melt or anything.
 
Do you have the oem piece still? I ran into this problem with my ebay intake, what I did was cut the intake about in half and bought a 45 degree coupler that went from 2.25" at the turbo inlet to 3" at the intake pipe. They make these intakes way too long for some reason. Either way it'll make it easier to find a piece to recirculate with having it closer to the bov
 

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Wes got it. Its this blue hose(usually the color ive seen). Works great. Oooooor, dont worry about it. I know i know, :vent to atmosphere is really terrible if you arent running a blow through maf or SD"

Right, right. Well heres the jist: As long as it isnt sucking air in when not in boost then the only side effect is when you shift and the unmetered air escapes thus causing a very, very brief moment where you will run rich. Will it foul your plugs? No. Not in my personal experience, not one bad thing happened.
If you do a pull and throw it in neutral and coast THEN you may sputter a little. My setup did not have that problem at all. So, while recirculating is ideal, it is by no means necessary. Might be a little against the grain with my opinion but if anyone can tell me that running rich for 1/10 a second between shifts can cause a lot of problems then i will delete this and never suggest it again.

Oh, and to add, im running a Fidanza flywheel. Which is very light. If a car would die after a pull straight to coasting it would be mine. My idle is bumped a little cause of my cams. I like an idle around 950, perhaps that helps.
 
Right, right. Well heres the jist: As long as it isnt sucking air in when not in boost then the only side effect is when you shift and the unmetered air escapes thus causing a very, very brief moment where you will run rich. Will it foul your plugs? No. Not in my personal experience, not one bad thing happened.
If you do a pull and throw it in neutral and coast THEN you may sputter a little. My setup did not have that problem at all. So, while recirculating is ideal, it is by no means necessary. Might be a little against the grain with my opinion but if anyone can tell me that running rich for 1/10 a second between shifts can cause a lot of problems then i will delete this and never suggest it again.

I personally would vent if I could just because I love the sound of a 1g vented bov, but I've never been able to get mine to run right vented. My tuner even tried using the maf clamp thing or whatever on link, still idled horrible and a/f ratios were all over the place. My car is automatic tho so that might have something to do with it
 
i personally would vent if i could just because i love the sound of a 1g vented bov, but i've never been able to get mine to run right vented. My tuner even tried using the maf clamp thing or whatever on link, still idled horrible and a/f ratios were all over the place. My car is automatic tho so that might have something to do with it

rofl, you cant vent unless your tuned on speed density wtf dude who is your tuner?

Please recirculate right now, before you grenade...
 
"Recirculate before you grenade"
Wow, do you even know WHY you recirculate?
What do you think the bov does? Im just curious. You are telling someone on a stock maf that if he doesnt recirculate he will "grenade" ....something.

OP: Yea, the sound is cool and if you go with some aftermarket intake pipes its a PITA with the upper ic pipe to get it recirculated. If your setup is close to stock in most ways and you cant get things dialed in on link well enough then just go do what wes linked to. That is the best idea.

I personally would vent if I could just because I love the sound of a 1g vented bov, but I've never been able to get mine to run right vented. My tuner even tried using the maf clamp thing or whatever on link, still idled horrible and a/f ratios were all over the place. My car is automatic tho so that might have something to do with it

OP: Also if your idle was effected by not having the pipe on then your bov is shot or set wrong in the first place. It should NOT be pulling air in at any time. It only vents. Ive seen misadjusted bov's or leaky ones pull air and if its not recirc then yes, its just like a big vac leak making you run lean or pushing combined ft's up
 
Boost, if you vent, the trouble is that when at idle, you're pulling vacuum, which holds the bov open, which in turn allows unmetered air to be pulled, throwing your mas readings off. My 1g wouldn't even hold idle uncirculated.
 
Some radiator hoses have a steel wire 'spring' inside of the rubber. That 'spring' keeps the hose from collapsing, yet allows it to stay flexible. Can be a bit tough to cut, but other than that it should work good for a tight bend.
 
rofl, you cant vent unless your tuned on speed density wtf dude who is your tuner?

Please recirculate right now, before you grenade...

Or with a blow thru maf. No one is going to grenade their engine because of a vented bov. It only causes issues at idle and when the engine is coming to an idle from a rev.
 
hmm Guess my bov is too tight: I pull no air in at idle. No shit, ive checked plenty of times.
Why, at idle, would it pull air in through the bov? The pressure on both sides is the same just like it is during boost(why it doesnt blow air). It obviously releases when the tp closes causing a pressure drop on top and boost still in the UICP. Guess if my bov was sucking air while idling i would have to assume it would be blowing air under boost. Then it wouldnt be a leap for me to suspect a torn diaphragm.

But, Cdc, if this is true and mine is just abnormal, then i will refrain from recommending anyone run without a recirc pipe for sure. The problems are obvious if thats the case on all bov's

Edit: Cdc: I missed something. You said your "1g". Meaning your 1g bov? That could be the issue right there. See the greddy like in the top pic has spring adjustments.
 
You can clock your intake downward some to align it better. That's life. Function above all I would also use a rubber hose. I have had several silicone hose failures, I had my whole car done at one time. Needless to say they don't work well with med-high boost.
 
rofl, you cant vent unless your tuned on speed density wtf dude who is your tuner?

Please recirculate right now, before you grenade...

Lol, it is recirculated. If you took the time to read you would see I said I tried to vent, not that I was. See my above picture where I showed the OP how I got my oem tube to work? My tuner is David Aguado (Chicken). Apparently you didn't know ecmlink had a way to vent with the stock maf.

Out of curiosity, what is it that I'm going to grenade if I vent?
 
Spa Hose from Ace or Home Depot works well. Holds up just fine to the heat.

http://www.dsmtuners.com/forums/newbie-forum/447565-wes_393s-hose-spa-recirculation-tube-mod.html

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That's what I got for now. It works, and is not completely Crimped. I like how that looks though Wes thanks

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Well it's running and running well. Don't like how it looks but it's recirculating. What y'all think. Before pic is in my profile if u want to see.
 

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hmm Guess my bov is too tight: I pull no air in at idle. No shit, ive checked plenty of times.
Why, at idle, would it pull air in through the bov? The pressure on both sides is the same just like it is during boost(why it doesnt blow air). It obviously releases when the tp closes causing a pressure drop on top and boost still in the UICP. Guess if my bov was sucking air while idling i would have to assume it would be blowing air under boost. Then it wouldnt be a leap for me to suspect a torn diaphragm.

But, Cdc, if this is true and mine is just abnormal, then i will refrain from recommending anyone run without a recirc pipe for sure. The problems are obvious if thats the case on all bov's

Edit: Cdc: I missed something. You said your "1g". Meaning your 1g bov? That could be the issue right there. See the greddy like in the top pic has spring adjustments.

IT all depends on the spring pressure in the bov. At idle there is vacuum present in the hose to the bov so one with a weak spring, such as a stock bov will almost always be open at idle. When you are under boost the bov is forced closed because there is a positive pressure in the line to the bov. If you have an aftermarket and have the screw cranked down than it will stay closed at idle.
 
IT all depends on the spring pressure in the bov. At idle there is vacuum present in the hose to the bov so one with a weak spring, such as a stock bov will almost always be open at idle. When you are under boost the bov is forced closed because there is a positive pressure in the line to the bov. If you have an aftermarket and have the screw cranked down than it will stay closed at idle.

Ahhh, thank you sir. So the stock 1g would be the exception. Understood.
 
I didn't want to make another thread so I'm going to try to repost on this one.

So swapped my head got everything running well. The only thing now is my temp gauge on dash says I run hot, like almost all the way up but not quite. And will fluctuate, lay log says 206-212*f steady.

My battery was dead and had to be jumped. It starts the car but I'm sure it is not a good battery. Could this be my problem? Should I worry about this problem?
 
Make a new thread, nobody is going to come here looking to help your overheat problem in a thread about "recirculating". :thumb:
 
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